Metadata: Identification_Information: Citation: Citation_Information: Originator: Dicken, Connie L. Originator: Dunlap, Pamela Originator: Parks, Heather L. Originator: Hammarstrom, Jane M. Originator: Zientek, Michael L. Originator: Johnson, Kathleen M. Publication_Date: 2016 Title: Global assessment of undiscovered copper resources Series_Information: Series_Name: Scientific Investigations Report Issue_Identification: 2010-5090-Z Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/sir20105090Z Online_Linkage: https://mrdata.usgs.gov/sir20105090z/ Description: Abstract: Deposits, prospects, and permissive tracts for porphyry and sediment-hosted copper resources worldwide, with estimates of undiscovered copper resources. pCu_tracts contains vector data (polygon) for 192 tracts permissive for porphyry copper mineralization. The tracts outline principal areas of the world that have potential for undiscovered porphyry copper resources; the tracts were used to estimate the probable amounts of those resources at depths within 1 km below the earth's surface. Attributes include tract identifiers, tract name, location coordinates, country and state or province, grade/tonnage model used to assess tract, a brief description of the basis for tract delineation, age, assessment results, and multiple economic results. pCu_deps_pros includes data on porphyry copper deposits and prospects compiled from eighteen regional datasets that were prepared as part of the U.S. Geological Survey's Global Mineral Resource Assessment Project over a period of years ranging from 2008 through 2015. These data were reviewed and edited to both correct errors and to better fit a standard data model. Major enhancements include more specific age information, and the rounding of calculated values for tonnage and the Au/Mo ratio to the nearest significant figure. In addition, all references cited were compiled; full references were standardized and URLs were included where available. Copper resources are reported for related deposits in close proximity to each other; grade and tonnage information was combined for these deposits and is reported in the pCu_group table. The feature class pCu_groups contains a small, select set of 47 records each of which represents a group of related deposits and prospects; data were compiled from the feature class pCu_deps_pros. Location coordinates can represent a generalized location or a specific mineralized site; for all of the deposits in the group, grade represents the weighted average while tonnage represents the total ore tonnage. sedCu_tracts includes polygons that represent 48 permissive tracts for sediment-hosted copper deposits of the world. These are the principal areas in the world that have potential for undiscovered sediment-hosted copper resources. Those with a quantitative estimate were assessed to depths of 1 to 2.5 km below the earth's surface. sedCu_deps_pros contains points that represent sediment-hosted copper deposits and prospects of the world. Data were compiled from nine regional assessment reports into two datasets that provide data for use in an assessment of undiscovered sediment-hosted stratabound copper resources of the world. These data describe deposits, prospects, and other mineralized sites. Purpose: These data are intended to provide, for porphyry copper and sediment-hosted copper deposits, a globally consistent and comprehensive analysis of undiscovered resources. They are intended to equip all nations with a regional and global context for evaluating their mineral resources, planning for new mineral exploration and anticipating the economic, environmental, and social impacts of mineral development, and making land use decisions. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2016 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -180 East_Bounding_Coordinate: 180 North_Bounding_Coordinate: 73.91 South_Bounding_Coordinate: -55.98 Keywords: Theme: Theme_Keyword_Thesaurus: Alexandria Digital Library Feature Type Thesaurus Theme_Keyword: mineral deposit areas Theme_Keyword: mine sites Theme: Theme_Keyword_Thesaurus: General glossary for mineral resources spatial data Theme_Keyword: comma-delimited text Theme_Keyword: file geodatabase (ESRI) Theme_Keyword: KML Theme_Keyword: shapefile Theme: Theme_Keyword_Thesaurus: Lithologic classification of geologic map units Theme_Keyword: Porphyry Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: copper Theme_Keyword: economic geology Theme_Keyword: geospatial datasets Theme_Keyword: metallic mineral resources Theme_Keyword: mineral deposits Theme_Keyword: natural resource assessment Place: Place_Keyword_Thesaurus: Common geographic areas Place_Keyword: fAF = Afghanistan Place_Keyword: fUS02 = Alaska Place_Keyword: fAO = Angola Place_Keyword: fAR = Argentina Place_Keyword: fUS04 = Arizona Place_Keyword: fAM = Armenia Place_Keyword: fAS = Australia Place_Keyword: fAJ = Azerbaijan Place_Keyword: fBE = Belgium Place_Keyword: fBC = Botswana Place_Keyword: fBU = Bulgaria Place_Keyword: fBM = Burma Place_Keyword: fUS06 = California Place_Keyword: fCB = Cambodia Place_Keyword: fCA = Canada Place_Keyword: fCI = Chile Place_Keyword: fCH = China Place_Keyword: fCO = Colombia Place_Keyword: fUS08 = Colorado Place_Keyword: fCG = Congo (Democratic Republic of the) Place_Keyword: fCS = Costa Rica Place_Keyword: fCU = Cuba Place_Keyword: fDR = Dominican Republic Place_Keyword: fEC = Ecuador Place_Keyword: fEG = Egypt Place_Keyword: fFJ = Fiji Place_Keyword: fFI = Finland Place_Keyword: fFR = France Place_Keyword: fGG = Georgia Place_Keyword: fGM = Germany Place_Keyword: fGR = Greece Place_Keyword: fGL = Greenland Place_Keyword: fHA = Haiti Place_Keyword: fHO = Honduras Place_Keyword: fHU = Hungary Place_Keyword: fUS16 = Idaho Place_Keyword: fID = Indonesia Place_Keyword: fIR = Iran Place_Keyword: fIS = Israel Place_Keyword: fIT = Italy Place_Keyword: fJM = Jamaica Place_Keyword: fJO = Jordan Place_Keyword: fKZ = Kazakhstan Place_Keyword: fKS = Korea, Republic of Place_Keyword: fKG = Kyrgyzstan Place_Keyword: fLA = Laos Place_Keyword: fMK = Macedonia Place_Keyword: fMY = Malaysia Place_Keyword: fMX = Mexico Place_Keyword: fUS26 = Michigan Place_Keyword: fMG = Mongolia Place_Keyword: fUS30 = Montana Place_Keyword: fWA = Namibia Place_Keyword: fUS32 = Nevada Place_Keyword: fUS35 = New Mexico Place_Keyword: fNU = Nicaragua Place_Keyword: fUS40 = Oklahoma Place_Keyword: fPK = Pakistan Place_Keyword: fPM = Panama Place_Keyword: fPP = Papua New Guinea Place_Keyword: fUS42 = Pennsylvania Place_Keyword: fPE = Peru Place_Keyword: fRP = Philippines Place_Keyword: fPL = Poland Place_Keyword: fRO = Romania Place_Keyword: fRS = Russia Place_Keyword: fLO = Slovakia Place_Keyword: fBP = Solomon Islands Place_Keyword: fUS48 = Texas Place_Keyword: fTH = Thailand Place_Keyword: fTU = Turkey Place_Keyword: fUK = United Kingdom Place_Keyword: fUS49 = Utah Place_Keyword: fUZ = Uzbekistan Place_Keyword: fNH = Vanuatu Place_Keyword: fVM = Vietnam Place_Keyword: fUS51 = Virginia Place_Keyword: fUS53 = Washington Place_Keyword: fUS56 = Wyoming Place_Keyword: fZA = Zambia Access_Constraints: none Use_Constraints: none Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Connie Dicken Contact_Organization: USGS Geology, Energy, and Minerals Science Center Contact_Position: Geologist Contact_Address: Address_Type: mailing address Address: U.S. Geological Survey National Center Mail Stop 954 12201 Sunrise Valley Dr City: Reston State_or_Province: VA Postal_Code: 20192 Country: USA Contact_Voice_Telephone: 703-648-6482 Contact_Facsimile_Telephone: 703-648-6252 Contact_Electronic_Mail_Address: cdicken@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://mrdata.usgs.gov/sir20105090z/sir20105090z-large.png Browse_Graphic_File_Description: Reduced-size map showing permissive tracts for porphyry copper and sediment-hosted copper worldwide, (540 x 270 pixels) Browse_Graphic_File_Type: PNG Data_Quality_Information: Logical_Consistency_Report: Tracts were checked to confirm deposits and prospects were inside tract boundaries. Table pcu_precambrian_deps_pros contains descriptions of Precambrian deposits only one of which was used in the assessment (in Finland). These data are included for completeness and for reference. Deposits and prospects that are geographically close to one another are considered by the assessment procedure to represent the same deposit, so their data are combined. This is how the porphyry copper deposits and prospects were separated into two tables, one containing individual deposit records (pcu_deps_pros) and the other containing aggregated reports describing groups of geographically close deposits that are combined for the assessment (pcu_groups). Completeness_Report: For the purpose of mineral resource assessment, deposits and prospects are included in the analysis if there is sufficient information available about them to determine that the deposit model is pertinent and that the information known about them can contribute usefully to the analysis. Consequently there may be in the literature or in other USGS databases reports of mineral resource occurrences that may appear to be pertinent to this study but were not included because those reports lack needed information. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Paul Denning, USGS Publication_Date: 20140701 Title: Porphyry copper assessment of western Central Asia Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Scientific Investigations Report Issue_Identification: 2010-5090-N Online_Linkage: https://pubs.usgs.gov/sir/2010/5090/n/ Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20140701 Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: 2010-5090-N Source_Contribution: Berger, B.R., Mars, J.C., Denning, P.D., Phillips, J.D., Hammarstrom, J.M., Zientek, M.L, Dicken, C.L., and Drew, L.J., with contributions from Alexeiev, D., Seltmann, R., and Herrington, R.J., 2014, Porphyry copper assessment of western Central Asia: U.S. Geological Survey Scientific Investigations Report 2010-5090-N, 219 p., 8 plates, and spatial data, http://dx.doi.org/10.3133/sir20105090N. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Arthur Bookstrom, USGS Publication_Date: 20140515 Title: Porphyry copper assessment of eastern Australia Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Scientific Investigations Report Issue_Identification: 2010-5090-N Online_Linkage: http://dx.doi.org/10.3133/sir20105090L Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20140515 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: 2010-5090-L Source_Contribution: Bookstrom, A.A., Glen, R.A., Hammarstrom, J.M., Robinson, G.R., Jr., Zientek, M.L., Drenth, B.J., Jaireth, Subhash, Cossette, P.M., and Wallis, J.C., 2014, Porphyry copper assessment of eastern Australia: U.S. Geological Survey Scientific Investigations Report 2010-5090-L, 160 p., and GIS data, available at http://dx.doi.org/10.3133/sir20105090L. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Klaus Schulz, USGS Publication_Date: 20081001 Title: Quantitative mineral resource assessment of copper, molybdenum, gold, and silver in undiscovered porphyry copper deposits in the Andes Mountains of South America Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: USGS Open-file Report Issue_Identification: 2008-1253 Online_Linkage: https://pubs.usgs.gov/of/2008/1253 Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20081001 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Open-File Report 2008-1253 Source_Contribution: Cunningham, C.G.; Zappettini, E.O.; Vivallo S., Waldo; Celada, C.M.; Quispe, Jorge; Singer, D.A.; Briskey, J.A.; Sutphin, D.M.; Gajardo M., Mariano; Diaz, Alejandro; Portigliati, Carlos; Berger, V.I., Carrasco, Rodrigo; and Schulz, K.J., 2008, Quantitative mineral resource assessment of copper, molybdenum, gold, and silver in undiscovered porphyry copper deposits in the Andes Mountains of South America: U.S. Geological Survey Open-File Report 2008-1253, 282 p., CD-ROM. (Also available at https://pubs.usgs.gov/of/2008/1253/.) Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Floyd Gray, USGS Publication_Date: 20140228 Title: Porphyry copper assessment of Central America and the Caribbean Basin Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Scientific Investigations Report Issue_Identification: 2010-5090-I Online_Linkage: http://dx.doi.org/10.3133/sir20105090I Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20140228 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: 2010-5090-I Source_Contribution: Gray, Floyd; Hammarstrom, J.M.; Ludington, Steve; Zürcher, Lukas; Nelson, C.E., Robinson, G.R., Jr., Miller, R.J., and Moring, B.C., 2014, Porphyry copper assessment of Central America and the Caribbean Basin: U.S. Geological Survey Scientific Investigations Report 2010-5090-I, 81 p. and GIS data, available at http://dx.doi.org/10.3133/sir20105090I. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Jane M. Hammarstrom, USGS, Geologist Publication_Date: 20141104 Title: Porphyry copper assessment of East and Southeast Asia: The Philippines, Taiwan (Republic of China), Republic of Korea (South Korea), and Japan Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Scientific Investigations Series Issue_Identification: 2010-5090-P Online_Linkage: http://dx.doi.org/10.3133/sir20105090P Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20141104 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: 2010-5090-P Source_Contribution: Hammarstrom, J.M., Bookstrom, A.A., DeMarr, M.W., Dicken, C.L., Ludington, Steve, Robinson, G.R., Jr., and Zientek, M.L., with contributions from Cox, D.P., Gerel, Ochir, Manipon, C.J.C., Rollan, L.A., Sakimoto, Takehiro, Singer, D.A., Takagi, Tetsuichi, and Watanabe, Yasushi, 2014, Porphyry copper assessment of East and Southeast Asia: The Philippines, Taiwan (Republic of China), Republic of Korea (South Korea), and Japan: U.S. Geological Survey Scientific Investigations Report 2010-5090-P, 241 p. and GIS data, available at http://dx.doi.org/10.3133/sir20105090P. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Jane M. Hammarstrom, USGS, Geologist Publication_Date: 20130314 Title: Porphyry copper assessment of Southeast Asia and Melanesia Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Scientific Investigations Series Issue_Identification: 2010-5090-D Online_Linkage: https://pubs.usgs.gov/sir/2010/5090/d/ Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20130314 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: 2010-5090-D Source_Contribution: Hammarstrom, J.M., Bookstrom, A.A., Dicken, C.L., Drenth, B.J., Ludington, Steve, Robinson, G.R., Jr., Setiabudi, B.T., Sukserm, Wudhikarn, Sunuhadi, D.N., Wah, A.Y.S., and Zientek, M.L., with contributions from Cox, D.P.; Jarnyaharn, Pairatt; Kopi, Gwaibo; Ngoc, N.T.M.; Otarawanna, Pichai; Pei, C.S.; Phany, Ung; Quy, N.V.; Sakimoto, Takehiro; Saroa, Dulcie; Soares de Costa, Norberta; Sotham, Sieng; Sim, I.M.; Trung, N.N.; Wongsomasak, Somob; Yokarti, Boonsong; and Zaw, Khin, 2013, Porphyry copper assessment of Southeast Asia and Melanesia: U.S. Geological Survey Scientific Investigations Report 2010-5090-D, 332 p. and GIS data, available at https://pubs.usgs.gov/sir/2010/5090/d/. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Jane M. Hammarstrom, USGS, Geologist Publication_Date: 20100929 Title: Porphyry copper assessment of Mexico Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Scientific Investigations Series Issue_Identification: 2010-5090-A Online_Linkage: https://pubs.usgs.gov/sir/2010/5090/a/ Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20100929 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: 2010-5090-A Source_Contribution: Hammarstrom, J.M.; Robinson, G.R., Jr.; Ludington, Steve; Gray, Floyd; Drenth, B.J.; Cendejas-Cruz, Francisco; Espinosa, Enrique; Pérez-Segura, Efrén; Valencia-Moreno, Martín; Rodríguez-Castañeda, J.L.; Vásquez-Mendoza, Rigoberto; and Zürcher, Lukas, 2010, Porphyry copper assessment of Mexico: U.S. Geological Survey Scientific Investigations Report 2010-5090-A, 176 p. and GIS data, available at https://pubs.usgs.gov/sir/2010/5090/a/. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Stephen Ludington, USGS, Geologist Publication_Date: 20070101 Title: Preliminary mineral resource assessment of selected mineral deposit types in Afghanistan Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: USGS Open-file Report Issue_Identification: 2007-1005 Other_Citation_Details: Afghanistan tracts have been modified from published report by Jane Hammarstrom and Steve Ludington for inclusion in this Global report. Permissive rocks were extracted from geologic maps, and buffers created around rocks to create modified assessment tracts. Online_Linkage: https://pubs.usgs.gov/of/2007/1005/ Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20070101 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Open-File Report 2007-1005 Source_Contribution: Ludington, Steve, Orris, G.J., Bolm, K.S., Peters, S.G., and U.S. Geological Survey-Afghanistan Ministry of Mines and Industry Joint Mineral Resource Assessment Team, 2007, Preliminary mineral resource assessment of selected mineral deposit types in Afghanistan: U.S. Geological Survey Open-File Report 2007-1005, 44 p., available at https://pubs.usgs.gov/of/2007/1005/. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Stephen Ludington, USGS, Geologist Publication_Date: 20121022 Title: Porphyry copper assessment of the Tibetan Plateau, China Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Scientific Investigations Report Issue_Identification: 2010-5090-F Online_Linkage: https://pubs.usgs.gov/sir/2010/5090/f/ Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20121022 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: 2010-5090-F Source_Contribution: Ludington, Steve, Hammarstrom, J.M., Robinson, G.R., Jr., Mars, J.C., and Miller, R.J., 2012, Porphyry copper assessment of the Tibetan Plateau, China: U.S. Geological Survey Scientific Investigations Report 2010-5090-F, 63 p. and GIS data, available at https://pubs.usgs.gov/sir/2010/5090/f/. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Stephen Ludington, USGS, Geologist Publication_Date: 20121215 Title: Porphyry copper assessment of the Mesozoic of East Asia: China, Vietnam, North Korea, Mongolia, and Russia Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Scientific Investigations Report Issue_Identification: 2010-5090-G Online_Linkage: https://pubs.usgs.gov/sir/2010/5090/g/ Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20121215 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: 2010-5090-G Source_Contribution: Ludington, Steve, Mihalasky, M.J., Hammarstrom, J.M., Robinson, G.R., Jr., Frost, T.P., Gans, K.D., Light, T.D., Miller, R.J., and Alexeiev, Dmitriy, 2012, Porphyry copper assessment of the Mesozoic of East Asia: China, Vietnam, North Korea, Mongolia, and Russia: U.S. Geological Survey Scientific Investigations Report 2010-5090-G, 53 p. and GIS data, available at https://pubs.usgs.gov/sir/2010/5090/g/. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Mark J Mihalasky, USGS Publication_Date: 20111018 Title: Porphyry copper assessment of British Columbia and Yukon Territory, Canada (version 1.1) Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Scientific Investigations Report Issue_Identification: 2010-5090-C Online_Linkage: https://pubs.usgs.gov/sir/2010/5090/c/ Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20111018 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: 2010-5090-C Source_Contribution: Mihalasky, M.J., Bookstrom, A.A., Frost, T.P., and Ludington, Steve, with contributions from Logan, J.M., Panteleyev, Andre, and Abbot, Grant, 2011, revised 2013, Porphyry copper assessment of British Columbia and Yukon Territory, Canada (version 1.1): U.S. Geological Survey Scientific Investigations Report 2010-5090-C, 128 p., data tables and GIS data, available at https://pubs.usgs.gov/sir/2010/5090/c/. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Mark J Mihalasky, USGS Publication_Date: 20150618 Title: Porphyry copper assessment of northeast Asia: Far East Russia and northeasternmost China Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Scientific Investigations Report Issue_Identification: 2010-5090-W Online_Linkage: http://dx.doi.org/10.3133/sir20105090W Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20150618 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: 2010-5090-W Source_Contribution: Mihalasky, M.J., Ludington, Steve, Alexeiev, D.V., Frost, T.P., and Light, T.D., with contributions from Bookstrom, A.A., and Panteleyev, Andre, in press, Porphyry copper assessment of northeast Asia: Far East Russia and northeasternmost China: U.S. Geological Survey Scientific Investigations Report 2010-5090-W, 104 p. and GIS data, available at http://dx.doi.org/10.3133/sir20105090W. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Mark J Mihalasky, USGS Publication_Date: 20150324 Title: Porphyry Copper Assessment of the Central Asian Orogenic Belt and eastern Tethysides: China, Mongolia, Russia, Pakistan, Kazakhstan, Tajikistan, and India Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Scientific Investigations Report Issue_Identification: 2010-5090-X Online_Linkage: http://dx.doi.org/10.3133/sir20105090X Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20150324 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: 2010-5090-X Source_Contribution: Mihalasky, M.J., Ludington, Steve, Hammarstrom, J.M., Alexeiev, D.V., Frost, T.P., Light, T.D., Robinson, G.R., Jr., Briggs, D.A., Wallis, J.C., and Miller, R.J., with contributions from Bookstrom, A.A., Panteleyev, Andre, Chitalin, Andre, Seltmann, Reimar, Guangsheng, Y., Changyun, L., Jingwen, M., Jinyi, L., Keyan, X., Ruizhao, Q., Jianbao, S., Gangyi, S., and Yuliang, D., 2015, Porphyry Copper Assessment of the Central Asian Orogenic Belt and eastern Tethysides: China, Mongolia, Russia, Pakistan, Kazakhstan, Tajikistan, and India: U.S. Geological Survey Scientific Investigations Report 2010-5090-X, 106 p. and spatial data, http://dx.doi.org/10.3133/sir20105090X. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Kalevi Rasilaninen, Geological Survey of Finland Publication_Date: 20140101 Title: Quantitative assessment of undiscovered resources in volcanogenic massive sulphide deposits, porphyry copper deposits and Outokumpu-type deposits in Finland Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Report of Investigation Issue_Identification: 208 Other_Citation_Details: Digital GIS files provided to USGS by email from Kalevi Rasilaninen on January 9, 2015. Online_Linkage: http://tupa.gtk.fi/julkaisu/tutkimusraportti/tr_208.pdf Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20140101 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Report of Investigation 208 Source_Contribution: Rasilainen, K., Eilu, P., Halkoaho, T., Karvinen, A., Kontinen, A., Kousa, J., Lauri, L., Luukas, J., Niiranen, T., Nikander, J., Sipilä, P., Sorjonen-Ward, P., Tiainen, M., Törmänen, T. and Västi, K., 2014, Quantitative assessment of undiscovered resources in volcanogenic massive sulphide deposits, porphyry copper deposits and Outokumpu-type deposits in Finland: Geological Survey of Finland, Report of Investigation 208, 393 p., available at: http://tupa.gtk.fi/julkaisu/tutkimusraportti/tr_208.pdf. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Jane M. Hammarstrom, USGS, Geologist Publication_Date: 20130702 Title: Porphyry copper assessment of Europe, exclusive of the Fennoscandian Shield Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Scientific Investigations Report Issue_Identification: 2090-5090-K Online_Linkage: https://pubs.usgs.gov/sir/2010/5090/k/ Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20130702 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: 2010-5090-K Source_Contribution: Sutphin, D.M., Hammarstrom, J.M., Drew, L.J., Large, D.E., Berger, B.B., Dicken, C.L., and DeMarr, M.W. with contributions from Billa, Mario; Briskey, J.A.; Cassard, Daniel; Lips, Andor; Pertold, Zdenek Pertold, and Emilian Rosu, 2013, Porphyry copper assessment of Europe, exclusive of the Fennoscandian Shield: U.S. Geological Survey Scientific Investigations Report 2010-5090-K, 199 p. and GIS data, available at https://pubs.usgs.gov/sir/2010/5090/k/. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Stephen Ludington, USGS, Geologist Publication_Date: 20020102 Title: Assessment of undiscovered deposits of gold, silver, copper, lead, and zinc in the United States Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: USGS Open-file Report Issue_Identification: 02-198 Other_Citation_Details: United States tracts have been modified from this report by Jane Hammarstrom and Steve Ludington for inclusion in this Global report. Permissive rocks were extracted from geologic maps, and buffers created around rocks to create modified assessment tracts. Online_Linkage: https://pubs.usgs.gov/of/2002/of02-198/ Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20020101 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Open-File Report 02-198 Source_Contribution: U.S. Geological Survey National Mineral Resource Assessment Team, 2002, Assessment of undiscovered deposits of gold, silver, copper, lead, and zinc in the United States: U.S. Geological Survey Open-File Report 02-198, CD-ROM. Also available at https://pubs.usgs.gov/of/2002/of02-198/. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Source_Information: Source_Citation: Citation_Information: Originator: Lukas Zürcher, USGS Publication_Date: 2010 Title: Porphyry copper assessment of the Tethys region of western and southern Asia Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Scientific Investigations Report Issue_Identification: 2010-5090-V Online_Linkage: http://dx.doi.org/10.3133/sir20105090V Type_of_Source_Media: onLine Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20151001 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: 2010-5090-V Source_Contribution: Zürcher, Lukas, Bookstrom, A.A., Hammarstrom, J.M., Mars, J.C., Ludington, Steve, Zientek, M.L., Dunlap, Pamela, and Wallis, J.C., with contributions from Drew, L.J., Sutphin, D.M.,Berger, B.R., Herringon, R.J., Billa, Mario, Kuscu, Ilkay, Moon, C.J., and Richards, J.P., 2015, Porphyry copper assessment of the Tethys region of western and southern Asia: U.S. Geological Survey Scientific Investigations Report 2010-5090-V, 232 p., and spatial data, available at http://dx.doi.org/10.3133/sir20105090V. Polygon tracts were used from source regeional report to compile single copper tract feature class (pCu_tracts). Process_Step: Process_Description: Delineation of permissive tracts was carried out on a regional basis by different groups of scientific investigators; their results were published separately over a few years. For this compilation, those results were assembled and combined, merging polygons where it was appropriate to do so, and ensuring that attribute data were consistent (correction of spelling errors where identified, for example). Process_Date: 2014 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Connie Dicken Contact_Organization: Midwest Region Contact_Position: Geologist Contact_Address: Address_Type: mailing address Address: U.S. Geological Survey National Center Mail Stop 954 12201 Sunrise Valley Dr City: Reston State_or_Province: VA Postal_Code: 20192 Country: USA Contact_Voice_Telephone: 703-648-6482 Contact_Facsimile_Telephone: 703-648-6252 Contact_Electronic_Mail_Address: cdicken@usgs.gov Process_Step: Process_Description: Modification of this metadata record to include more detailed information about the values of attributes. Process_Date: 202101 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peter N Schweitzer Contact_Organization: USGS Geology, Energy, and Minerals Science Center Contact_Position: Geologist Contact_Address: Address_Type: mailing address Address: Mail Stop 954 12201 Sunrise Valley Dr City: Reston State_or_Province: VA Postal_Code: 20192 Country: USA Contact_Voice_Telephone: 703-648-6533 Contact_Facsimile_Telephone: 703-648-6252 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 3467 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: G-Polygon Point_and_Vector_Object_Count: 240 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 Geographic_Coordinate_Units: decimal degrees Geodetic_Model: Horizontal_Datum_Name: World Geodetic System 1984 Ellipsoid_Name: WGS 84 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.257 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: datadxny Entity_Type_Definition: Data dictionary, explaining tables and fields Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: id Attribute_Definition: Record ID. Row identifier within datadxny table Integer values. Integer of width 4. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 283 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: tblorder Attribute_Definition: Table order. Order in which this table should appear in some presentations Integer values. Integer of width 4. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 10 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: tblname Attribute_Definition: Table name. Name of the table Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 20 characters. Attribute: Attribute_Label: number Attribute_Definition: Ordinal position. Order in which this field occurs in the RDBMS Integer values. Integer of width 4. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 10 records have no value for number. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 73 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: label Attribute_Definition: Field label. Label of the field in the RDBMS Textual values of no more than 32 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 10 records have no value for label. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: category Attribute_Definition: Category. General category of information provided by the contents of the field Textual values of no more than 50 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 9 records have no value for category. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: short_desc Attribute_Definition: Short description. Descriptive name of the field used in some presentations, not constrained by rules affecting the label Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 10 records have no value for short_desc. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: description Attribute_Definition: Description. Longer description of the purpose and contents of the field Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 4096 characters. Attribute: Attribute_Label: link Attribute_Definition: Link. URL providing more information about the field Textual values of no more than 96 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 283 records have no value for link. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: origin Attribute_Definition: Origin of field. Abbreviation of an organization, data set, or other entity responsible for defining the field Textual values of no more than 12 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 283 records have no value for origin. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: sqltype Attribute_Definition: SQL type. Data type of the field as used in the RDBMS Textual values of no more than 8 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 10 records have no value for sqltype. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: dbftype Attribute_Definition: DBF field type. Data type of the field when expressed in DBF Textual values of no more than 1 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 10 records have no value for dbftype. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: width Attribute_Definition: Field width. Field width when expressed in DBF Integer values. Integer of width 4. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 132 records have no value for width. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 4096 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: prec Attribute_Definition: Precision. Precision of the field (places to right of decimal) when expressed in DBF, only for numeric fields Integer values. Integer of width 4. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 213 records have no value for prec. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 0 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: units Attribute_Definition: Units of measure. Units of measure of the field values Textual values of no more than 64 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 283 records have no value for units. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: nodata Attribute_Definition: No-data value. Special value assigned to indicate that no information is available, usually used for numeric fields where a blank field might be intererpreted as the legitimate, but incorrect value zero. Textual values of no more than 16 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 234 records have no value for nodata. Enumerated_Domain_Value_Definition_Source: this data release Detailed_Description: Entity_Type: Entity_Type_Label: pcu_deps_pros Entity_Type_Definition: Porphyry copper deposits and prospects Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: objectid Attribute_Definition: Feature ID. Internal feature number. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 2338 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: gmrap_id Attribute_Definition: GMRAP ID. Unique identifier for each record. [GMRAP, Global Mineral Resource Assessment Project.] Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 9996 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: coded_id Attribute_Definition: Tract ID. Coded, unique identifier assigned to permissive tract within which the site is located; corresponds to Coded_ID in the feature class pCu_tracts. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 16 characters. Attribute: Attribute_Label: tract_name Attribute_Definition: Tract name. Name of permissive tract in which the site is located; corresponds to Tract_name in the feature class pCu_tracts. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 64 characters. Attribute: Attribute_Label: name Attribute_Definition: Site name. Site name. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 44 characters. Attribute: Attribute_Label: name_other Attribute_Definition: Alternate names. Other names used for the site. Textual values of no more than 100 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 1250 records have no value for name_other. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: name_group Attribute_Definition: Group name. Group name, applied when 2-km rule was used to cluster deposits and (or) prospects for the purpose of calculating grades and tonnages. Textual values of no more than 28 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 1914 records have no value for name_group. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: includes Attribute_Definition: Included sites. Names of deposits and (or) prospects that were combined with the primary deposit as a result of the 2-km spatial aggregation rule used for calculating grades and tonnages, OR sites described in the original source reference(s) as being included in the description of primary site. Textual values of no more than 256 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 1749 records have no value for includes. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: sitestatus Attribute_Definition: Site status. Type of site; deposit is a site for which grade and tonnage are reported; prospect is a site for which grade and tonnage are not reported. Textual values of no more than 12 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: deposit Enumerated_Domain_Value_Definition: Site for which grade and tonnage are reported. Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: prospect Enumerated_Domain_Value_Definition: Site for which grade and tonnage are not reported. Enumerated_Domain_Value_Definition_Source: this dataset Attribute: Attribute_Label: country Attribute_Definition: Country. Country in which site is located. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Single place names of no more than 56 characters. Attribute: Attribute_Label: state_prov Attribute_Definition: State or province. State, province or region in which the site is located. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Single place names of no more than 44 characters. Attribute: Attribute_Label: latitude Attribute_Definition: Latitude. Latitude, in decimal degrees; positive number represents latitude north of the equator; negative number indicates latitude south of the equator. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -48.075 Range_Domain_Maximum: 68.700026 Attribute: Attribute_Label: longitude Attribute_Definition: Longitude. Longitude, in decimal degrees; positive number represents longitude east of the Greenwich meridian; negative number represents longitude west of the Greenwich meridian. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -161.1 Range_Domain_Maximum: 179.391531 Attribute: Attribute_Label: dep_type Attribute_Definition: Deposit type. Type of mineral deposit. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 48 characters. Values may include "(?)". Attribute: Attribute_Label: dep_subtype Attribute_Definition: Deposit subtype. Subtype of porphyry copper deposit type based on ratio of Au (g/t) to Mo (weight percent); entries include Cu-Au, Cu-Mo and NA (not applicable). Textual values of no more than 8 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cu-Au Enumerated_Domain_Value_Definition: Copper with gold Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cu-Mo Enumerated_Domain_Value_Definition: Copper with molybdenum Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NA Enumerated_Domain_Value_Definition: Subtype not available Enumerated_Domain_Value_Definition_Source: this dataset Attribute: Attribute_Label: age_ma Attribute_Definition: Age (Ma). Age of mineralization; in millions of years before the present; based on reported absolute ages, or midpoints of ranges of absolute ages, or midpoints of geologic time scale units. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 1299 records have no value for age_ma. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.5 Range_Domain_Maximum: 1990 Attribute: Attribute_Label: age_method Attribute_Definition: Age determination method. Method used to determine age reported in field Age_Ma. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 68 characters. Attribute: Attribute_Label: age_range Attribute_Definition: Age range. Range of ages, listed from oldest to youngest; in absolute ages or in geologic time units. Textual values of no more than 144 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 212 records have no value for age_range. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: age_ref Attribute_Definition: Age reference. Abbreviated citation, in author and year format, for reference(s) for age information; full references are listed in the FGDB standalone table pCu_sites_references. Textual values of no more than 104 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 232 records have no value for age_ref. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: comm_major Attribute_Definition: Major commodities. Major commodities, listed in decreasing order of economic importance. Chemical symbols are used for commodities; multiple commodities are comma-delimited. Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 115 records have no value for comm_major. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: comm_minor Attribute_Definition: Minor commodities. Minor commodities, listed in decreasing order of economic importance; queried where uncertain. Chemical symbols are used for commodities; multiple commodities are comma-delimited. Textual values of no more than 44 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 1685 records have no value for comm_minor. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: comm_trace Attribute_Definition: Trace commodities. Trace commodities, listed in decreasing order of economic importance. Chemical symbols are used for commodities; multiple commodities are comma-delimited. Textual values of no more than 28 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 2107 records have no value for comm_trace. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: tonnage_mt Attribute_Definition: Tonnage (Mt). Ore tonnage, for deposit, in millions of metric tons (Mt). Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 1670 records have no value for tonnage_mt. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 21277 Attribute: Attribute_Label: cu_pct Attribute_Definition: Cu grade (%). Average copper grade, for deposit, in weight percent. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 1672 records have no value for cu_pct. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.028 Range_Domain_Maximum: 1.57 Attribute: Attribute_Label: mo_pct Attribute_Definition: Mo grade (%). Average molybdenum grade, for deposit, in weight percent. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 1929 records have no value for mo_pct. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0005 Range_Domain_Maximum: 0.1 Attribute: Attribute_Label: au_g_t Attribute_Definition: Au grade (g/t). Average gold grade, for deposit, in grams per metric ton (g/t). Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 1874 records have no value for au_g_t. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0011 Range_Domain_Maximum: 6.6 Attribute: Attribute_Label: ag_g_t Attribute_Definition: Ag grade (g/t). Average silver grade, for deposit, in grams per metric ton (g/t); Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 2004 records have no value for ag_g_t. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.081 Range_Domain_Maximum: 65 Attribute: Attribute_Label: con_cu_t Attribute_Definition: Contained copper. Contained copper, for deposit, in metric tons (t), rounded to nearest significant figure; Con_Cu_t = Tonnage_Mt*1,000,000*Cu_pct/100 where SiteStatus=deposit. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 1672 records have no value for con_cu_t. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 16000 Range_Domain_Maximum: 130000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: au_mo Attribute_Definition: Gold-Moly ratio. Ratio of Au (g/t) to Mo (weight percent), for deposit, rounded to nearest significant figure; Au_Mo = Au_g_t/Mo_pct where SiteStatus=deposit. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 2026 records have no value for au_mo. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.1 Range_Domain_Maximum: 1000 Attribute: Attribute_Label: comments Attribute_Definition: Comments. Significant comments; may include grade and tonnage information for prospects, name of magmatic arc or belt. Textual values of no more than 1872 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 153 records have no value for comments. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: minerals Attribute_Definition: Minerals. Minerals present, as reported in literature cited; listed in alphabetical order. Most rock-forming minerals such as feldspar and quartz are not reported. Textual values of no more than 556 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 982 records have no value for minerals. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: assd_rock Attribute_Definition: Associated rocks. Associated rocks in the deposit and on regional source map. Textual values of no more than 388 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 821 records have no value for assd_rock. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: dev_status Attribute_Definition: Development status. The status or nature of operations at the time the record was entered or this field was last modified. Textual values of no more than 16 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Producer Enumerated_Domain_Value_Definition: Location where production was occurring at the time of the report. Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Past producer Enumerated_Domain_Value_Definition: Location where production is reported to have occurred in the past but not at the time of the report. Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Prospect Enumerated_Domain_Value_Definition: Location where a grade or tonnage estimate is reported for the occurrence. Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Occurrence Enumerated_Domain_Value_Definition: Location where the deposit or commodity is reported, but no grade or tonnage estimates were reported. Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Unknown Enumerated_Domain_Value_Definition: Status not reported in literature. Enumerated_Domain_Value_Definition_Source: this dataset Attribute: Attribute_Label: ref_list Attribute_Definition: References. List of abbreviated citations, in author and year format, for references used in compiling information for site, delimited by semicolons; full references are listed in the FGDB standalone table pCu_sites_references. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 800 characters. Attribute: Attribute_Label: setting Attribute_Definition: Tectonic setting. Tectonic setting in which mineralization was emplaced. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 24 characters. Attribute: Attribute_Label: study_area Attribute_Definition: Study area name. Geographic area of USGS report from which data were originally compiled. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 40 characters. Attribute: Attribute_Label: short_ref Attribute_Definition: Site reference. Abbreviated citation for author and year of the USGS regional report from which data were originally compiled; full reference located in the lineage section of the metadata and listed in file geodatabase standalone table pCu_tracts_references. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: A single short reference, values of no more than 76 characters. Attribute: Attribute_Label: strat_age Attribute_Definition: Stratigraphic age. Stratigraphic age; Eon, Era or Period. Textual values of no more than 56 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 212 records have no value for strat_age. Enumerated_Domain_Value_Definition_Source: this data release Detailed_Description: Entity_Type: Entity_Type_Label: pcu_groups Entity_Type_Definition: Groups of closely-related porphyry copper deposits, for which characteristics such as grade and tonnage are aggregated Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: objectid Attribute_Definition: Feature ID. Internal feature number. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 47 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: gmrap_id Attribute_Definition: GMRAP ID. Unique identifier for each record. [GMRAP, Global Mineral Resource Assessment Project.] Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5000 Range_Domain_Maximum: 5060 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: coded_id Attribute_Definition: Tract ID. Coded, unique identifier assigned to permissive tract. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Single identifier consisting of digits and letters, no more than 16 characters. Attribute: Attribute_Label: tract_name Attribute_Definition: Tract name. Informal name of permissive tract. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 56 characters. Attribute: Attribute_Label: name_group Attribute_Definition: Group name. Group name, applied when 2-km rule was used to cluster deposits and (or) prospects for the purpose of calculating grades and tonnages. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 24 characters. Attribute: Attribute_Label: includes Attribute_Definition: Included sites. Names of deposits and prospects that have been grouped as a result of the 2-km aggregation rule used for calculating grades and tonnages. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 252 characters. Attribute: Attribute_Label: sitestatus Attribute_Definition: Site status. Type of site; deposit is a site for which grade and tonnage are reported; prospect is a site for which grade and tonnage are not reported. Textual values of no more than 8 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: deposit Enumerated_Domain_Value_Definition: Site for which grade and tonnage are reported. Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: prospect Enumerated_Domain_Value_Definition: Site for which grade and tonnage are not reported. Enumerated_Domain_Value_Definition_Source: this dataset Attribute: Attribute_Label: country Attribute_Definition: Country. Country in which site is located. Textual values of no more than 48 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 48 characters. Attribute: Attribute_Label: state_prov Attribute_Definition: State or province. State, province or region. Textual values of no more than 36 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 36 characters. Attribute: Attribute_Label: latitude Attribute_Definition: Latitude. Latitude, in decimal degrees, for a general location of the group; positive number represents latitude north of the equator; negative number indicates latitude south of the equator. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -34.327824 Range_Domain_Maximum: 58.213604609 Attribute: Attribute_Label: longitude Attribute_Definition: Longitude. Longitude, in decimal degrees, for a general location of the group; positive number represents longitude east of the Greenwich meridian; negative number represents longitude west of the Greenwich meridian. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -131.794220144 Range_Domain_Maximum: 178.187 Attribute: Attribute_Label: dep_type Attribute_Definition: Deposit type. Type of mineral deposit. Textual values of no more than 20 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Porphyry copper Enumerated_Domain_Value_Definition: Common copper deposit type well described elsewhere. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: dep_subtype Attribute_Definition: Deposit subtype. Subtype of porphyry copper deposit type. Textual values of no more than 8 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cu-Au Enumerated_Domain_Value_Definition: Copper with gold Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cu-Mo Enumerated_Domain_Value_Definition: Copper with molybdenum Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NA Enumerated_Domain_Value_Definition: Subtype not available Enumerated_Domain_Value_Definition_Source: this dataset Attribute: Attribute_Label: age_ma Attribute_Definition: Age (Ma). Age of mineralization; reported as absolute age, or midpoint of range of absolute ages, or midpoint of geologic time scale unit(s). Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 11 records have no value for age_ma. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 6.7 Range_Domain_Maximum: 456 Attribute_Units_of_Measure: millions of years Attribute: Attribute_Label: age_method Attribute_Definition: Age determination method. Method used to determine age reported in field Age_Ma. Textual values of no more than 60 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 60 characters. Attribute: Attribute_Label: age_range Attribute_Definition: Age range. Range of ages, listed from oldest to youngest. Textual values of no more than 76 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 2 records have no value for age_range. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: age_ref Attribute_Definition: Age reference. Abbreviated citation, in author and year format, for reference(s) for age information; full references are listed in the FGDB standalone table pCu_sites_references. Multiple values separated by semicolons. Textual values of no more than 84 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 2 records have no value for age_ref. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: comm_major Attribute_Definition: Major commodities. Major commodities, listed in decreasing order of economic importance. Chemical symbols are used for commodities; multiple commodities are comma-delimited. Textual values of no more than 24 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Comma-separated list of chemical element symbols including Cu, Au, Mo, Ag, Pb, and Zn. Attribute: Attribute_Label: comm_minor Attribute_Definition: Minor commodities. Minor commodities, listed in decreasing order of economic importance; queried where uncertain. Chemical symbols are used for commodities; multiple commodities are comma-delimited. Textual values of no more than 16 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 23 records have no value for comm_minor. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: comm_trace Attribute_Definition: Trace commodities. Trace commodities, listed in decreasing order of economic importance. Chemical symbols are used for commodities; multiple commodities are comma-delimited. Textual values of no more than 20 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 37 records have no value for comm_trace. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: tonnage_mt Attribute_Definition: Tonnage (Mt). Total ore tonnage for all deposits in the group, in millions of metric tons (Mt). Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 12 records have no value for tonnage_mt. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 23 Range_Domain_Maximum: 4692 Attribute_Units_of_Measure: millions of metric tons (Mt) Attribute: Attribute_Label: cu_pct Attribute_Definition: Cu grade (%). Weighted average copper grade, for all deposits in the group, in weight percent, where weighted average resulting from the multiplication of each component by a factor reflecting its importance. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 12 records have no value for cu_pct. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.15 Range_Domain_Maximum: 0.9 Attribute: Attribute_Label: mo_pct Attribute_Definition: Mo grade (%). Weighted average molybdenum grade, for all deposits in the group, in weight percent, where weighted average resulting from the multiplication of each component by a factor reflecting its importance. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 26 records have no value for mo_pct. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.001 Range_Domain_Maximum: 0.022 Attribute: Attribute_Label: au_g_t Attribute_Definition: Au grade (g/t). Weighted average gold grade, for all deposits in the group, in grams per metric ton (g/t), where weighted average resulting from the multiplication of each component by a factor reflecting its importance. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 17 records have no value for au_g_t. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.005 Range_Domain_Maximum: 0.59 Attribute: Attribute_Label: ag_g_t Attribute_Definition: Ag grade (g/t). Weighted average silver grade, for all deposits in the group, in grams per metric ton (g/t), where weighted average resulting from the multiplication of each component by a factor reflecting its importance. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 31 records have no value for ag_g_t. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.08 Range_Domain_Maximum: 9.52 Attribute: Attribute_Label: con_cu_t Attribute_Definition: Contained copper. Total contained copper, for all deposits in the group, in metric tons (t), rounded to nearest significant figure; Con_Cu_t = Tonnage_Mt*1,000,000*Cu_pct/100 where SiteStatus=deposit. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 12 records have no value for con_cu_t. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 104000 Range_Domain_Maximum: 23000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: au_mo Attribute_Definition: Gold-Moly ratio. Ratio of Au (g/t) to Mo (weight percent), rounded to nearest significant figure; Au_Mo = Au_g_t/Mo_pct where SiteStatus=deposit. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for au_mo. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 200 Attribute: Attribute_Label: comments Attribute_Definition: Comments. All significant comments; may include grade and tonnage information for prospects, name of magmatic arc or belt. Textual values of no more than 460 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 460 characters. Attribute: Attribute_Label: minerals Attribute_Definition: Minerals. Minerals present, as reported in literature cited; listed in alphabetical order. Most rock-forming minerals such as feldspar and quartz are not reported. Textual values of no more than 500 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 3 records have no value for minerals. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: assd_rock Attribute_Definition: Associated rocks. Associated rocks in the deposit and on regional source map. Textual values of no more than 188 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 3 records have no value for assd_rock. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: dev_status Attribute_Definition: Development status. The status or nature of operations at the time the record was entered or this field was last modified. Textual values of no more than 16 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Producer Enumerated_Domain_Value_Definition: Location where production was occurring at the time of the report. Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Past producer Enumerated_Domain_Value_Definition: Location where production is reported to have occurred in the past but not at the time of the report. Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Prospect Enumerated_Domain_Value_Definition: Location where a grade or tonnage estimate is reported for the occurrence. Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Occurrence Enumerated_Domain_Value_Definition: Location where the deposit or commodity is reported, but no grade or tonnage estimates were reported. Enumerated_Domain_Value_Definition_Source: this dataset Attribute: Attribute_Label: ref_list Attribute_Definition: References. All reference(s) for data in this record, in author(s) and year format, delimited by semicolons. See file geodatabase table "pCu_sites_references" for complete source references (listed by deposit or prospect). Textual values of no more than 800 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 800 characters. Attribute: Attribute_Label: setting Attribute_Definition: Tectonic setting. Tectonic setting in which mineralization was emplaced. Textual values of no more than 24 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 24 characters. Attribute: Attribute_Label: study_area Attribute_Definition: Study area name. Geographic area of USGS report from which data were originally compiled. Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 40 characters. Attribute: Attribute_Label: short_ref Attribute_Definition: Site reference. Abbreviated citation for author and year of the USGS regional report from which data were originally compiled; full reference located in the lineage section of the metadata and listed in file geodatabase standalone table pCu_tracts_references. Textual values of no more than 44 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 44 characters. Attribute: Attribute_Label: strat_age Attribute_Definition: Stratigraphic age. Stratigraphic age; Eon, Era or Period Textual values of no more than 36 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 2 records have no value for strat_age. Enumerated_Domain_Value_Definition_Source: this data release Detailed_Description: Entity_Type: Entity_Type_Label: pcu_precambrian_deps_pros Entity_Type_Definition: Precambrian porphyry copper deposits and prospects. Not used directly in the assessment, provided for reference. Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: objectid Attribute_Definition: Feature ID. Internal feature number. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 22 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: name Attribute_Definition: Site name. Site name. Textual values of no more than 16 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 16 characters. Attribute: Attribute_Label: name_other Attribute_Definition: Alternate names. Other names used for the site. Textual values of no more than 24 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 16 records have no value for name_other. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: includes Attribute_Definition: Included sites. Names of deposits and (or) prospects that were combined with the primary deposit as a result of the 2-km spatial aggregation rule used for calculating grades and tonnages, OR sites described in the original source reference(s) as being included in the description of primary site. Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 19 records have no value for includes. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: sitestatus Attribute_Definition: Site status. Type of site; deposit is a site for which grade and tonnage are reported; prospect is a site for which grade and tonnage are not reported. Textual values of no more than 12 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: deposit Enumerated_Domain_Value_Definition: Site for which grade and tonnage are reported. Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: prospect Enumerated_Domain_Value_Definition: Site for which grade and tonnage are not reported. Enumerated_Domain_Value_Definition_Source: this dataset Attribute: Attribute_Label: country Attribute_Definition: Country. Country in which the site is located. Textual values of no more than 12 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 12 characters. Attribute: Attribute_Label: stateprov Attribute_Definition: State or province. State, province or region in which the site is located. Textual values of no more than 20 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 20 characters. Attribute: Attribute_Label: latitude Attribute_Definition: Latitude. Latitude, in decimal degrees; positive number represents latitude north of the equator; negative number indicates latitude south of the equator. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -28.683333 Range_Domain_Maximum: 67.0725 Attribute: Attribute_Label: longitude Attribute_Definition: Longitude. Longitude, in decimal degrees; positive number represents longitude east of the Greenwich meridian; negative number represents longitude west of the Greenwich meridian. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -91 Range_Domain_Maximum: 120.108333 Attribute: Attribute_Label: dep_type Attribute_Definition: Deposit type. Type of mineral deposit. Textual values of no more than 20 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Porphyry copper Enumerated_Domain_Value_Definition: Common copper deposit type well described elsewhere. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: dep_subtype Attribute_Definition: Deposit subtype. Subtype of porphyry copper deposit type. Textual values of no more than 8 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cu-Au Enumerated_Domain_Value_Definition: Copper with gold Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cu-Mo Enumerated_Domain_Value_Definition: Copper with molybdenum Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NA Enumerated_Domain_Value_Definition: Subtype not available Enumerated_Domain_Value_Definition_Source: this dataset Attribute: Attribute_Label: age_ma Attribute_Definition: Age (Ma). Age of mineralization; in millions of years before the present; based on reported absolute ages, or midpoints of ranges of absolute ages, or midpoints of geologic time scale units. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 621 Range_Domain_Maximum: 3234 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: tonnage Attribute_Definition: Tonnage (Mt). Ore tonnage, for deposit, in millions of metric tons (Mt). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 1340 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: cu_pct Attribute_Definition: Cu grade (%). Average copper grade, for deposit, in weight percent. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 0.83 Attribute: Attribute_Label: mo_pct Attribute_Definition: Mo grade (%). Average molybdenum grade, for deposit, in weight percent. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 0.09 Attribute: Attribute_Label: au_g_t Attribute_Definition: Au grade (g/t). Average gold grade, for deposit, in grams per metric ton (g/t). Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 0.35 Attribute: Attribute_Label: ag_g_t Attribute_Definition: Ag grade (g/t). Average silver grade, for deposit, in grams per metric ton (g/t). Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 6 Detailed_Description: Entity_Type: Entity_Type_Label: pcu_sites_references Entity_Type_Definition: Bibliographic references used for porphyry copper deposits and prospects Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: objectid Attribute_Definition: Feature ID. Record identifier for the table row Integer values. Integer of width 4. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 7931 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: relate_id Attribute_Definition: Relate ID. Relationship identifier used in ArcGIS software Integer values. Integer of width 4. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 7931 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: gmrap_id Attribute_Definition: GMRAP ID. Identifier for the mine, prospect, or occurrence as known to the project that created these data Integer values. Integer of width 6. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 9996 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: coded_id Attribute_Definition: Tract ID. Identifier for the permissive tract containing the site. The deposit model of the site must match the target deposit model of the permissive tract. Textual values of no more than 16 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 16 characters. Attribute: Attribute_Label: name Attribute_Definition: Site name. Name of the site to which this reference pertains Textual values of no more than 44 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 44 characters. Attribute: Attribute_Label: auth_year Attribute_Definition: Short reference. Author and year of publication of the reference, used as in-text citation or to sort these records in a list. Textual values of no more than 84 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 84 characters. Attribute: Attribute_Label: citation Attribute_Definition: Full reference. Bibliographic reference in the form it would appear in a published journal article, using USGS style conventions. Textual values of no more than 788 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 788 characters. Attribute: Attribute_Label: web_link Attribute_Definition: Online linkage. A URL or other web link for the publication Textual values of no more than 220 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 2621 records have no value for web_link. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: region Attribute_Definition: Region. Name of the geographic region to which the reference pertains, and in which the site lies. Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 40 characters. Detailed_Description: Entity_Type: Entity_Type_Label: pcu_tracts Entity_Type_Definition: Permissive tracts for porphyry copper deposits Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: objectid Attribute_Definition: Feature ID. Internal feature number. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 208 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: coded_id Attribute_Definition: Tract ID. Coded, unique identifier assigned to permissive tract. [3 digit region code] pCu [4 digit tract number] Textual values of no more than 16 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 16 characters. Attribute: Attribute_Label: tract_name Attribute_Definition: Tract name. Informal name of permissive tract. Textual values of no more than 64 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 64 characters. Attribute: Attribute_Label: unregcode Attribute_Definition: UN region code. Three digit United Nations code for the region that underlies most of the permissive tract. (ISO 3166-1 numeric) Integer values. Integer of width 3. Attribute_Definition_Source: this data release Attribute_Domain_Values: Codeset_Domain: Codeset_Name: ISO 3166-1 Codeset_Source: https://www.iso.org/iso-3166-country-codes.html Attribute: Attribute_Label: country Attribute_Definition: Country. Country(ies) in which permissive tract is located Textual values of no more than 108 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 108 characters. Attribute: Attribute_Label: commodity Attribute_Definition: Commodity. Primary commodity being assessed Textual values of no more than 8 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cu Enumerated_Domain_Value_Definition: copper Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: study_area Attribute_Definition: Study area name. Geographic area of USGS report from which data were originally compiled. Textual values of no more than 60 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 60 characters. Attribute: Attribute_Label: quant Attribute_Definition: Quantitative assessment. Dichotomous variable for whether or not a quantitative resource assessment was performed for tract. Textual values of no more than 8 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Yes Enumerated_Domain_Value_Definition: Quantitative resource assessment was performed for this tract. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: No Enumerated_Domain_Value_Definition: Quantitative resource assessment was not performed for this tract. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: region Attribute_Definition: Region. Name of large geographic region used for reporting copper resources in Johnson and others (2014). Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 40 characters. Attribute: Attribute_Label: dep_type Attribute_Definition: Deposit type. Type of mineral deposit. Textual values of no more than 20 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: porphyry copper Enumerated_Domain_Value_Definition: Common copper deposit type well described elsewhere. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: gt_model Attribute_Definition: Grade-tonnage model. Grade-tonnage model used for the undiscovered deposit simulation. Textual values of no more than 72 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 72 characters. Attribute: Attribute_Label: geology Attribute_Definition: Geologic feature. Geologic feature assessed. Textual values of no more than 260 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 260 characters. Attribute: Attribute_Label: age Attribute_Definition: Geologic feature age. Age of the assessed geologic feature, expressed as singular or ranges of chronostratigraphic units. Textual values of no more than 44 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 44 characters. Attribute: Attribute_Label: age_group Attribute_Definition: Generalized age. Generalized geologic age. Textual values of no more than 24 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 24 characters. Attribute: Attribute_Label: asmt_date Attribute_Definition: Assessment date. Year assessment was conducted. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2005 Range_Domain_Maximum: 2015 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: asmt_depth Attribute_Definition: Assessment depth. Maximum depth beneath the Earth's surface used for the assessment, in kilometers. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 1 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: n90 Attribute_Definition: Est deposits 90%. Estimated number of deposits associated with the 90th percentile (90 percent chance of at least the indicated number of deposits). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 25 records have no value for n90. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 10 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: n50 Attribute_Definition: Est deposits 50%. Estimated number of deposits associated with the 50th percentile (50 percent chance of at least the indicated number of deposits). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 25 records have no value for n50. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 20 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: n10 Attribute_Definition: Est deposits 10%. Estimated number of deposits associated with the 10th percentile (10 percent chance of at least the indicated number of deposits). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 25 records have no value for n10. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: n05 Attribute_Definition: Est deposits 5%. Estimated number of deposits associated with the 5th percentile (5 percent chance of at least the indicated number of deposits). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 25 records have no value for n05. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: n01 Attribute_Definition: Est deposits 1%. Estimated number of deposits associated with the 1st percentile (1 percent chance of at least the indicated number of deposits). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 25 records have no value for n01. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: n_expected Attribute_Definition: Mean estimated deposits. Expected (mean) number of deposits, where N_expected = (0.233*N90) + (0.4*N50) + (0.225*N10) + (0.045*N05) + (0.03*N01). Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 25 records have no value for n_expected. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 40.33 Attribute: Attribute_Label: s Attribute_Definition: Standard deviation. Standard deviation, where s = 0.121 - (0.237*N90) - (0.093*N50) + (0.183*N10) + (0.073*N05) + (0.123*N01) Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 25 records have no value for s. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 33.79 Attribute: Attribute_Label: cv_percent Attribute_Definition: Coefficient of variance. Coefficient of variance, in percent, where Cv = (s/N_expected) * 100. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 25 records have no value for cv_percent. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 2.11 Attribute: Attribute_Label: est_levels Attribute_Definition: Confidence levels. The set of percentile (probability) levels at which undiscovered deposit estimates were made. Textual values of no more than 16 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Hyphen-separated list of integer percentages, or "no estimates" to indicate that no estimates were made. Attribute: Attribute_Label: n_known Attribute_Definition: Known deposits. Number of known deposits in the tract. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 46 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: n_total Attribute_Definition: Total deposits. Total number of deposits, where N_total = N_expected + N_known. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 62.06 Attribute: Attribute_Label: area_km2 Attribute_Definition: Area (sq km). Area of permissive tract calculated in a locally appropriate equal-area projection, in square kilometers. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 1170920 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: depdensity Attribute_Definition: Deposit density (sq km). Deposit density (total number of deposits per square kilometer), where DepDensity = N_total/Area_km2. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 25 records have no value for depdensity. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 0.00246 Attribute: Attribute_Label: depden10e5 Attribute_Definition: Deposit density (10e5 sq km). Deposit density per 100,000 square kilometers, where DepDen10E5 = DepDensity*100,000. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 25 records have no value for depden10e5. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 246 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: estimators Attribute_Definition: Estimators. Names of people on the estimation team. Textual values of no more than 256 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Comma-separated list of names, with "and" instead of the last comma. Textual values of no more than 256 characters. Attribute: Attribute_Label: mean_cu_t Attribute_Definition: Mean Cu tonnage. Mean copper resources, in metric tons, based on Monte Carlo simulation. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 210000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: mean_mo_t Attribute_Definition: Mean Mo tonnage. Mean molybdenum resources, in metric tons, based on Monte Carlo simulation. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 6300000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: mean_au_t Attribute_Definition: Mean Au tonnage. Mean gold resources, in metric tons, based on Monte Carlo simulation. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 3800 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: mean_ag_t Attribute_Definition: Mean Ag tonnage. Mean silver resources, in metric tons, based on Monte Carlo simulation. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 70000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: mean_rock_mt Attribute_Definition: Mean ore tonnage. Mean ore tonnage, in metric tons, based on Monte Carlo simulation. Bigint of width 12. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 27000000000 Attribute: Attribute_Label: cu_95 Attribute_Definition: Undiscovered Cu, 95%. Undiscovered copper resource estimate, 95th percentile value, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 22000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: cu_90 Attribute_Definition: Undiscovered Cu, 90%. Undiscovered copper resource estimate, 90th percentile value, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 46000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: cu_50 Attribute_Definition: Undiscovered Cu, 50%. Undiscovered copper resource estimate, median (50th percentile) value, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 190000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: cu_10 Attribute_Definition: Undiscovered Cu, 10%. Undiscovered copper resource estimate, 10th percentile value, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 400000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: cu_05 Attribute_Definition: Undiscovered Cu, 5%. Undiscovered copper resource estimate, 5th percentile value, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 470000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: prob_mean Attribute_Definition: Probability of mean. Probability of the mean value, undiscovered copper resource estimate. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 0.46 Attribute: Attribute_Label: prob_0_cu Attribute_Definition: Probability of no Cu. Probability of no copper, based on Monte Carlo simulation. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 0.71 Attribute: Attribute_Label: ident_cu Attribute_Definition: Identified Cu resources. Known copper resources, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 340000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: n_prospects Attribute_Definition: Known prospects. Number of identified porphyry copper prospects in tract. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 65 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: scales Attribute_Definition: Map scales used. List of map scales used, by denominator, to delineate tract boundary. Textual values of no more than 32 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Comma-separated list of map scale denominators, with abbreviations K and M to indicate thousands or millions, respectively. Attribute: Attribute_Label: begin_age Attribute_Definition: Oldest rocks age. Oldest age of permissive rocks in the tract, from geologic source maps, in millions of years before the present. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5.3 Range_Domain_Maximum: 2100 Attribute: Attribute_Label: end_age Attribute_Definition: Youngest rocks age. Youngest age of permissive rocks in the tract, from geologic source maps, in millions of years before the present. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 2100 Attribute: Attribute_Label: duration Attribute_Definition: Age range. Age range of permissive rocks in the tract, from geologic source maps. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 442 Attribute: Attribute_Label: short_ref Attribute_Definition: Reference. Abbreviated citation for source reference; full reference located in the lineage section of the metadata and listed in file geodatabase standalone table pCu_tracts_references. Textual values of no more than 108 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 108 characters. Attribute: Attribute_Label: meancu_km2 Attribute_Definition: Mean Cu (t/sq km). Mean copper resources per square kilometer, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 8174 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: ctryfraser Attribute_Definition: Fraser country. Country used for infrastructure rankings as compiled by the Fraser Institute (McMahon and Cervantes, 2012). Textual values of no more than 96 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 5 records have no value for ctryfraser. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: fras_typ Attribute_Definition: Fraser type. Percentage of categories 1 and 2, from quality of infrastructure table (McMahon and Cervantes, 2012), used to classify cost setting. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 0.97 Attribute: Attribute_Label: fras_high Attribute_Definition: Fraser high. Percentage of categories 3, 4, and 5, from quality of infrastructure table (McMahon and Cervantes, 2012), used to classify cost setting. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 1 Attribute: Attribute_Label: typ_cost Attribute_Definition: Typical cost. Ranking for typical cost, in percent. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 1 Attribute: Attribute_Label: high_cost Attribute_Definition: High cost. Ranking for high cost, in percent. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 1 Attribute: Attribute_Label: infra_set Attribute_Definition: Infrastructure setting. Mine cost setting based on infrastructure development. Textual values of no more than 12 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 9 records have no value for infra_set. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: depth_dist Attribute_Definition: Comments on depth. Comments on rationale for assignment of depth distributions categories. Textual values of no more than 88 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 25 records have no value for depth_dist. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: d_0_250m Attribute_Definition: Depth 0 - 250m. Proportion of undiscovered deposits occurring in the interval between the surface and 250 meters in depth. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 0.35 Attribute: Attribute_Label: d_250_500m Attribute_Definition: Depth 250m - 500m. Proportion of undiscovered deposits occurring in the interval from 250-500 meters in depth. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 0.3 Attribute: Attribute_Label: d_over500m Attribute_Definition: Depth over 500m. Proportion of undiscovered deposits occurring in the interval from 500-1,000 meters in depth. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 0.6 Attribute: Attribute_Label: ec_cu Attribute_Definition: Econ recoverable Cu. Estimated amount of economically recoverable copper, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 170000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: ec_mo Attribute_Definition: Econ recoverable Mo. Estimated amount of economically recoverable molybdenum, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 3600000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: ec_au Attribute_Definition: Econ recoverable Au. Estimated amount of economically recoverable gold, in metric tons (t). Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 1300 Attribute: Attribute_Label: ec_ag Attribute_Definition: Econ recoverable Ag. Estimated amount of economically recoverable silver, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 50000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: ec_0_prob Attribute_Definition: Probability no econ recoverable. Probability of no economic resources occurring in the tract, in percent. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 1 Attribute: Attribute_Label: ec_nvp Attribute_Definition: Econ NPV. Net present value of simulated economic deposits in the tract, in million U.S. dollars. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 51000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: ev_id Attribute_Definition: Exp dollars. Expected value of simulated resources in the tract, in million U.S. dollars/100,000 km2. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -87.97 Range_Domain_Maximum: 1924.11 Attribute: Attribute_Label: ev_class Attribute_Definition: Expected value class. Qualitative classification of expected value of simulated resources in the tract. Textual values of no more than 12 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Very Low Enumerated_Domain_Value_Definition: (Simulation results indicate very low resources.) Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Low Enumerated_Domain_Value_Definition: (Simulation results indicate low resources.) Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Medium Enumerated_Domain_Value_Definition: (Simulation results indicate medium resources.) Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: High Enumerated_Domain_Value_Definition: (Simulation results indicate high resources.) Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Information not available for this record. 28 records have no value for econ_ref. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: tect_set Attribute_Definition: Tectonic setting. Tectonic setting. Textual values of no more than 24 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 24 characters. Attribute: Attribute_Label: econ_ref Attribute_Definition: Economic reference. Abbreviated citation for economic source reference; full reference is listed in file geodatabase standalone table pCu_tracts_references. Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 25 records have no value for econ_ref. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: shape_length Attribute_Definition: Perimeter. Length of feature in internal units. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.98183523949 Range_Domain_Maximum: 823.058353604 Attribute: Attribute_Label: shape_area Attribute_Definition: Area. Area of feature in internal units squared. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0513568023928 Range_Domain_Maximum: 196.13472178 Detailed_Description: Entity_Type: Entity_Type_Label: pcu_tracts_references Entity_Type_Definition: Bibliographic references used for porphyry copper permissive tracts Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: objectid Attribute_Definition: Feature ID. Record identifier in the database table Integer values. Integer of width 4. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 20 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: short_ref Attribute_Definition: Short reference. Author and year, used as in-text citation or to sort these references in a list. Textual values of no more than 108 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 108 characters. Attribute: Attribute_Label: web_link Attribute_Definition: Online linkage. URL or other web address for the report cited by the reference. Textual values of no more than 60 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 1 records have no value for web_link. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: web_link2 Attribute_Definition: Online linkage 2. Alternative URL or other network address used to locate the report. Textual values of no more than 44 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 19 records have no value for web_link2. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: full_ref Attribute_Definition: Reference. Bibliographic reference in the form it would appear in a published journal article, using USGS style conventions. Textual values of no more than 796 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 796 characters. Detailed_Description: Entity_Type: Entity_Type_Label: sedcu_deps_pros Entity_Type_Definition: Sediment-hosted copper deposits and prospects Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: objectid Attribute_Definition: Feature ID. Internal feature number. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 1202 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: gmrap_id Attribute_Definition: GMRAP ID. Unique identifier for each record. [GMRAP, Global Mineral Resource Assessment Project.] Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 11222 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: coded_id Attribute_Definition: Tract ID. Coded, unique identifier assigned to permissive tract within which the site is located; corresponds to Coded_ID in the feature class sedCu_tracts. Textual values of no more than 20 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 20 characters. Attribute: Attribute_Label: tract_name Attribute_Definition: Tract name. Name of permissive tract in which the site is located; corresponds to Tract_name in the feature class sedCu_tracts. Textual values of no more than 56 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 56 characters. Attribute: Attribute_Label: name Attribute_Definition: Site name. Site name. Textual values of no more than 52 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 52 characters. Attribute: Attribute_Label: name_other Attribute_Definition: Alternate names. Other names used for the site. Textual values of no more than 128 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 1049 records have no value for name_other. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: name_group Attribute_Definition: Group name. Group name, applied when 500-m rule was used to cluster deposits and (or) prospects. Textual values of no more than 44 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 1173 records have no value for name_group. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: includes Attribute_Definition: Included sites. Names of deposits that have been combined with the primary deposit as a result of the 500-m aggregation rule used for calculating grades and tonnages. Textual values of no more than 252 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 1176 records have no value for includes. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: sitestatus Attribute_Definition: Site status. Type of site. Deposit--a site that has grade and tonnage. Historic mine - 19th century or earlier--a site that is a no longer active historic mine. Prospect--a site with no grade and tonnage values provided. Prospect--a mineralized material estimated: a site that has estimated mineralized material. Site--a site that occurs in sedimentary rock but has no other descriptive information. Textual values of no more than 44 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: deposit Enumerated_Domain_Value_Definition: A site that has grade and tonnage. Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: historic mine - 19th century or earlier Enumerated_Domain_Value_Definition: a site that is a no longer active historic mine. Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: prospect Enumerated_Domain_Value_Definition: A site with no grade and tonnage values provided. Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: prospect - mineralized material estimated Enumerated_Domain_Value_Definition: A site that has estimated mineralized material. Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: site Enumerated_Domain_Value_Definition: A site that occurs in sedimentary rock but has no other descriptive information. Enumerated_Domain_Value_Definition_Source: this dataset Attribute: Attribute_Label: sitestatus2 Attribute_Definition: Site status additional. Additional information on the status of the site. Textual values of no more than 104 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 1024 records have no value for sitestatus2. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: country Attribute_Definition: Country. Country in which the site is located. Textual values of no more than 36 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 36 characters. Attribute: Attribute_Label: state_prov Attribute_Definition: State or province. State, province or region in which the site is located. Textual values of no more than 28 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 28 characters. Attribute: Attribute_Label: latitude Attribute_Definition: Latitude. Latitude, in decimal degrees; positive number represents latitude north of the equator; negative number indicates latitude south of the equator. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -39.52452 Range_Domain_Maximum: 73.745822 Attribute: Attribute_Label: longitude Attribute_Definition: Longitude. Longitude, in decimal degrees; positive number represents longitude east of the Greenwich meridian; negative number represents longitude west of the Greenwich meridian. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -129.57404 Range_Domain_Maximum: 119.761494 Attribute: Attribute_Label: dep_type Attribute_Definition: Deposit type. Type of mineral deposit. Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sediment-hosted stratabound copper Enumerated_Domain_Value_Definition: Deposit in which copper mineralization is confined by stratigraphic units. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Copper occurrence in sedimentary rock Enumerated_Domain_Value_Definition: Occurrence not known to be stratabound. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: dep_subtype Attribute_Definition: Deposit subtype. Subtype of sediment-hosted copper. Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 201 records have no value for dep_subtype. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: age_host Attribute_Definition: Host rock age chronostratigraphic. Age of host rock, in standard divisions of geologic time. Textual values of no more than 28 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 2 records have no value for age_host. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: age_ma Attribute_Definition: Host rock age quantitative. Age, in millions of years before present. Age may be an average or midpoint for geologic era, period, or epoch listed. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 1800 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: unit Attribute_Definition: Geologic unit. Geologic unit in which site is located. Textual values of no more than 100 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 77 records have no value for unit. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: host_rocks Attribute_Definition: Host rock lithology. Simplified lithologic description of host rocks. Textual values of no more than 164 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 703 records have no value for host_rocks. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: comm_major Attribute_Definition: Major commodity. Major commodities, listed in decreasing order of economic importance. Chemical symbols are used for commodities; multiple commodities are comma-delimited. Textual values of no more than 28 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Comma-separated list of chemical element symbols. Attribute: Attribute_Label: tonnage_mt Attribute_Definition: Tonnage (Mt). Ore tonnage, for deposit, in millions of metric tons (Mt). Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 1016 records have no value for tonnage_mt. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.011 Range_Domain_Maximum: 3612.499 Attribute: Attribute_Label: cu_pct Attribute_Definition: Cu grade (%). Average copper grade, for deposit, in weight percent. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 1013 records have no value for cu_pct. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.3 Range_Domain_Maximum: 6.59 Attribute: Attribute_Label: co_pct Attribute_Definition: Co grade (%). Average cobalt grade, in weight percent. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 1144 records have no value for co_pct. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 2.308 Attribute: Attribute_Label: ag_g_t Attribute_Definition: Ag grade (g/t). Average silver grade, for deposit, in grams per metric ton (g/t). Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 1185 records have no value for ag_g_t. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 137.6 Attribute: Attribute_Label: con_cu_t Attribute_Definition: Contained Cu (t). Contained copper, for deposit, in metric tons (t), rounded to nearest significant figure. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 1012 records have no value for con_cu_t. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 210 Range_Domain_Maximum: 72000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: comments Attribute_Definition: Comments. Significant comments. Textual values of no more than 260 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 682 records have no value for comments. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: minerals Attribute_Definition: Minerals. Ore and gangue minerals, listed in approximate order of abundance. Textual values of no more than 188 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 966 records have no value for minerals. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: ref_list Attribute_Definition: References. List of abbreviated citations, in author and year format, for references used in compiling information for site, delimited by semicolons; full references are listed in the file geodatabase nonspatial table, sedCu_references. Textual values of no more than 256 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 256 characters. Attribute: Attribute_Label: short_ref Attribute_Definition: Site reference. Abbreviated citation for author and year of the USGS regional report from which data were originally compiled; full reference located in the lineage section of the metadata and listed in file geodatabase nonspatial table sedCu_references. Textual values of no more than 44 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 44 characters. Detailed_Description: Entity_Type: Entity_Type_Label: sedcu_references Entity_Type_Definition: Bibliographic references used for sediment-hosted copper deposits Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: objectid Attribute_Definition: Feature ID. Record identifier of the bibliography entry. Integer values. Integer of width 4. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 214 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: ref_short Attribute_Definition: Short reference. Author and year, used as in-text citation or to sort these references in a list. Textual values of no more than 84 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 84 characters. Attribute: Attribute_Label: full_ref Attribute_Definition: Reference. Bibliographic reference in the form it would appear in a published journal article, using USGS style conventions. Textual values of no more than 768 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 768 characters. Detailed_Description: Entity_Type: Entity_Type_Label: sedcu_tracts Entity_Type_Definition: Permissive tracts for sediment-hosted copper deposits Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: objectid Attribute_Definition: Feature ID. Internal feature number. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 48 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: coded_id Attribute_Definition: Tract ID. Coded, unique identifier assigned to permissive tract. Textual values of no more than 20 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 20 characters. Attribute: Attribute_Label: tract_name Attribute_Definition: Tract name. Informal name of permissive tract. Textual values of no more than 56 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 20 characters. Attribute: Attribute_Label: unregcode Attribute_Definition: UN region code. Three digit UN code for the region that underlies most of the permissive tract. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2 Range_Domain_Maximum: 150 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: country Attribute_Definition: Country. Country(ies) in which the permissive tract is located. Textual values of no more than 44 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 44 characters. Attribute: Attribute_Label: commodity Attribute_Definition: Commodity. Primary commodity being assessed. Textual values of no more than 8 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cu Enumerated_Domain_Value_Definition: copper Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: region Attribute_Definition: Region. Name of geographic region used for reporting copper resources in Johnson and others (2014). Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 40 characters. Attribute: Attribute_Label: basin Attribute_Definition: Basin name. Name of sedimentary basin in which the permissive tract is located. Textual values of no more than 52 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 52 characters. Attribute: Attribute_Label: dep_type Attribute_Definition: Deposit type. Type of mineral deposit. Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sediment-hosted stratabound copper Enumerated_Domain_Value_Definition: Deposit in which copper mineralization is confined by stratigraphic units. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: dep_model Attribute_Definition: Deposit model. Model used to classify deposit type. Textual values of no more than 72 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Value of dep_type possibly followed by a qualifier. Attribute: Attribute_Label: dmodel_ref Attribute_Definition: Deposit model reference. Deposit type model short reference; full reference is provided in nonspatial table sedCu_references. Textual values of no more than 44 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 44 characters. Attribute: Attribute_Label: gt_model Attribute_Definition: Grade-tonnage model. Grade-tonnage model used for the undiscovered deposit estimate. Textual values of no more than 72 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 72 characters. Attribute: Attribute_Label: gatm_ref Attribute_Definition: GT model reference. Abbreviated citation for grade and tonnage model; full reference is provided in the standalone table sedCu_references. Textual values of no more than 36 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NA Enumerated_Domain_Value_Definition: Reference not provided. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: geology Attribute_Definition: Geologic feature. Geologic feature assessed. Textual values of no more than 256 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 256 characters. Attribute: Attribute_Label: age Attribute_Definition: Geologic feature age. Age of the assessed geologic feature. Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Chronostratigraphic unit or range of chronostratigraphic units. Attribute: Attribute_Label: asmt_date Attribute_Definition: Assessment date. Year assessment was conducted. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1998 Range_Domain_Maximum: 2012 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: asmt_depth Attribute_Definition: Assessment depth. Maximum depth beneath the Earth's surface used for the assessment, in kilometers. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 2.5 Attribute: Attribute_Label: est_levels Attribute_Definition: Confidence levels. The set of percentile (probability) levels at which undiscovered deposit estimates were made. Textual values of no more than 16 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Hyphen-separated list of integer percentages, or "no estimates" to indicate that no estimates were made. Attribute: Attribute_Label: n90 Attribute_Definition: Est deposits 90%. Estimated number of deposits associated with the 90th percentile (90 percent chance of at least the indicated number of deposits). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for n90. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 50 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: n50 Attribute_Definition: Est deposits 50%. Estimated number of deposits associated with the 50th percentile (50 percent chance of at least the indicated number of deposits). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for n50. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 85 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: n10 Attribute_Definition: Est deposits 10%. Estimated number of deposits associated with the 10th percentile (10 percent chance of at least the indicated number of deposits). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for n10. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 180 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: n05 Attribute_Definition: Est deposits 5%. Estimated number of deposits associated with the 5th percentile (5 percent chance of at least the indicated number of deposits). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for n05. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 180 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: n01 Attribute_Definition: Est deposits 1%. Estimated number of deposits associated with the 1st percentile (1 percent chance of at least the indicated number of deposits). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for n01. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 180 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: n_expected Attribute_Definition: Mean estimated deposits. Expected (mean) number of deposits, where N_expected = (0.233*N90) + (0.4*N50) + (0.225*N10) + (0.045*N05) + (0.03*N01). Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for n_expected. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 100 Attribute: Attribute_Label: s Attribute_Definition: Standard deviation. Standard deviation, where s = 0.121 - (0.237*N90) - (0.093*N50) + (0.183*N10) + (0.073*N05) + (0.123*N01). Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for s. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.24 Range_Domain_Maximum: 49 Attribute: Attribute_Label: cv_percent Attribute_Definition: Coefficient of variance. Coefficient of variance, in percent, where Cv = (s/N_expected) * 100. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for cv_percent. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 26 Range_Domain_Maximum: 810 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: n_known Attribute_Definition: Known deposits. Number of known deposits in the tract. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 52 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: n_total Attribute_Definition: Total deposits. Total number of deposits, where N_total = N_expected + N_known. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 152 Attribute: Attribute_Label: area_km2 Attribute_Definition: Area (sq km). Area of permissive tract, in square kilometers. Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 129 Range_Domain_Maximum: 186791 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: depdensity Attribute_Definition: Deposit density (sq km). Deposit density (total number of deposits per square kilometer). DepDensity = N_total/Area_km2. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 4 records have no value for depdensity. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 6e-06 Range_Domain_Maximum: 0.043 Attribute: Attribute_Label: depden10e5 Attribute_Definition: Deposit density (10e5 sq km). Deposit density per 100,000 square kilometers. DepDen10E5 = DepDensity*100,000. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 4 records have no value for depden10e5. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.6 Range_Domain_Maximum: 4300 Attribute: Attribute_Label: estimators Attribute_Definition: Estimators. Names of people on the estimation team. Textual values of no more than 208 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Comma-separated list of names, "and" used in place of last comma. Attribute: Attribute_Label: ident_cu Attribute_Definition: Identified Cu resources. Known copper resources, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 72000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: cu_95 Attribute_Definition: Undiscovered Cu, 95%. Undiscovered copper resource estimate, 95th percentile value, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for cu_95. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 25000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: cu_90 Attribute_Definition: Undiscovered Cu, 90%. Undiscovered copper resource estimate, 90th percentile value, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for cu_90. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 49000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: cu_50 Attribute_Definition: Undiscovered Cu, 50%. Undiscovered copper resource estimate, median (50th percentile) value, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for cu_50. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 120000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: cu_10 Attribute_Definition: Undiscovered Cu, 10%. Undiscovered copper resource estimate, 10th percentile value, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for cu_10. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 220000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: cu_05 Attribute_Definition: Undiscovered Cu, 5%. Undiscovered copper resource estimate, 5th percentile value, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for cu_05. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 240000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: mean_cu_t Attribute_Definition: Mean Cu tonnage. Undiscovered copper resource estimate, mean value, in metric tons (t). Integer values. Integer of width . Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for mean_cu_t. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 12000 Range_Domain_Maximum: 130000000 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: prob_mean Attribute_Definition: Probability of mean. Probability of the mean value, undiscovered copper resource estimate. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for prob_mean. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 0.45 Attribute: Attribute_Label: prob_0_cu Attribute_Definition: Probability of no Cu. Probability of no undiscovered copper resources. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -9999 Enumerated_Domain_Value_Definition: Information not available for this record. 13 records have no value for prob_0_cu. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 0.97 Attribute: Attribute_Label: shape_length Attribute_Definition: Perimeter. Length of feature in internal units. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.05683807078 Range_Domain_Maximum: 87.4137205449 Attribute: Attribute_Label: shape_area Attribute_Definition: Area. Area of feature in internal units squared. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01922248202 Range_Domain_Maximum: 19.4584252287 Attribute: Attribute_Label: study_area Attribute_Definition: Study area name. Geographic area of USGS report from which data were originally compiled. Textual values of no more than 68 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 68 characters. Attribute: Attribute_Label: quant Attribute_Definition: Quantitative assessment. Dichotomous variable for whether or not a quantitative resource assessment was performed for tract. Textual values of no more than 8 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Yes Enumerated_Domain_Value_Definition: Quantitative resource assessment was performed for this tract. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: No Enumerated_Domain_Value_Definition: Quantitative resource assessment was not performed for this tract. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: short_ref Attribute_Definition: Short reference. Abbreviated citation for author and year of the USGS regional report from which data were originally compiled; full reference located in the lineage section of the metadata and listed in file geodatabase standalone table sedCu_references. Textual values of no more than 76 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 76 characters. Detailed_Description: Entity_Type: Entity_Type_Label: commodity Entity_Type_Definition: Commodity names or symbols, separated and associated with their importance, to facilitate search. Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: gmrap_id Attribute_Definition: GMRAP ID. Unique identifier for each record. [GMRAP, Global Mineral Resource Assessment Project.] Integer values. Integer of width 4. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 9996 Attribute: Attribute_Label: value Attribute_Definition: Commodity. Commodity name or symbol, may include question mark in parentheses. Textual values of no more than 8 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: A single chemical element symbol or mineral name, possibly with "(?)" appended. Attribute: Attribute_Label: role Attribute_Definition: Importance. Importance of commodity at the site (major, minor, or trace) Textual values of no more than 8 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: major Enumerated_Domain_Value_Definition: Commodity present in quantity likely to support economic exploitation. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: minor Enumerated_Domain_Value_Definition: Commodity may be economically exploited but would not be economical on its own. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: trace Enumerated_Domain_Value_Definition: Commodity present but not likely to be exploited economically. Enumerated_Domain_Value_Definition_Source: this data release Detailed_Description: Entity_Type: Entity_Type_Label: minerals Entity_Type_Definition: Mineral names, separated, to facilitate search. Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: gmrap_id Attribute_Definition: GMRAP ID. Unique identifier for each record. [GMRAP, Global Mineral Resource Assessment Project.] Integer values. Integer of width 4. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 9996 Attribute: Attribute_Label: value Attribute_Definition: Mineral. Mineral name, may indicate a group of related minerals, for rare minerals may include a chemical formula. Textual values of no more than 64 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 64 characters. Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Peter N Schweitzer Contact_Organization: USGS Geology, Energy, and Minerals Science Center Contact_Position: Geologist Contact_Address: Address_Type: mailing address Address: U.S. Geological Survey National Center Mail Stop 954 12201 Sunrise Valley Dr City: Reston State_or_Province: VA Postal_Code: 20192 Country: USA Contact_Voice_Telephone: 703-648-6533 Contact_Facsimile_Telephone: 703-648-6252 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Resource_Description: sir20105090z Distribution_Liability: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: WMS Format_Version_Number: 1.3.0 Format_Information_Content: Permissive tracts for porphyry copper and sediment hosted copper worldwide, with deposits and prospects used to delineate and characterize those tracts Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://mrdata.usgs.gov/services/sir20105090z?service=WMS&request=GetCapabilities&version=1.3.0 Digital_Form: Digital_Transfer_Information: Format_Name: shapefile Format_Version_Number: 1.0 Format_Information_Content: Shapefiles for permissive tracts and deposits and prospects, with complete attribute data in accompanying CSV files Transfer_Size: 61 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://mrdata.usgs.gov/sir20105090z/sir20105090z-csv.zip Digital_Form: Digital_Transfer_Information: Format_Name: KML Format_Version_Number: 2.2 Format_Information_Content: Permissive tracts with links to detailed information on the web. Transfer_Size: 67 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://mrdata.usgs.gov/sir20105090z/sir20105090z.kmz Fees: none Metadata_Reference_Information: Metadata_Date: 20210106 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Schweitzer, Peter, N Contact_Organization: USGS Geology, Energy, and Minerals Science Center Contact_Address: Address_Type: mailing address Address: 12201 Sunrise Valley Drive Mail Stop 954 City: Reston State_or_Province: VA Postal_Code: 20192 Country: USA Contact_Voice_Telephone: 703-648-6533 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998