Metadata: Identification_Information: Citation: Citation_Information: Originator: Singer, Donald A. Originator: Berger, Vladimir I. Originator: Moring, Barry C. Publication_Date: 2009 Title: Sediment-hosted zinc-lead deposits of the world Series_Information: Series_Name: Open-File Report Issue_Identification: 2009-1252 Publication_Information: Publication_Place: Menlo Park, California Publisher: Geological Survey (U.S.) Online_Linkage: https://doi.org/10.3133/ofr20091252 Online_Linkage: https://mrdata.usgs.gov/sedznpb/ Online_Linkage: https://pubs.usgs.gov/of/2009/1252/ Description: Abstract: Map interface and data download of Sed Zn-Pb data including KML and GIS data formats Purpose: Facilitate assessment of undiscovered mineral resources where the geologic and mineralogic information available is limited to what is commonly contained in a well constructed geologic map. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2009 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -163.190278 East_Bounding_Coordinate: 174.339167 North_Bounding_Coordinate: 83.078611 South_Bounding_Coordinate: -47.424167 Keywords: Theme: Theme_Keyword_Thesaurus: Alexandria Digital Library Feature Type Thesaurus Theme_Keyword: mineral deposit areas Theme: Theme_Keyword_Thesaurus: General glossary for mineral resources spatial data Theme_Keyword: comma-delimited text Theme_Keyword: DBF Theme_Keyword: HTML table Theme_Keyword: KML Theme_Keyword: shapefile Theme_Keyword: tab-delimited text Theme: Theme_Keyword_Thesaurus: Mineral Resources Data System commodity types Theme_Keyword: Copper Theme_Keyword: Gold Theme_Keyword: Silver Theme_Keyword: Zinc Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: copper Theme_Keyword: economic geology Theme_Keyword: geospatial datasets Theme_Keyword: gold Theme_Keyword: lead Theme_Keyword: mineral resources Theme_Keyword: ore formation Theme_Keyword: sedimentary rocks Theme_Keyword: silver Theme_Keyword: zinc Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Access_Constraints: none Use_Constraints: none Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Donald A Singer Contact_Organization: USGS WR SW GD Contact_Position: USGS Volunteer Contact_Address: Address_Type: mailing address Address: 345 Middlefield Road$Mail Stop 901 City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Contact_Voice_Telephone: 650-329-5370 Contact_Facsimile_Telephone: 650-329-5405 Contact_Electronic_Mail_Address: dsinger@usgs.gov Data_Quality_Information: Logical_Consistency_Report: Information here is derived from many previously published sources. Corrections in locations were made by consulting commonly available imagery in web services such as Google Earth. Completeness_Report: Sediment-hosted Zn-Pb deposits are hosted in a variety of sedimentary rocks and have commonly been classified into skarns, polymetallic replacements, Mississippi Valley Zn-Pb (MVT), Sedimentary-exhalative Zn-Pb (SEDEX), sandstone-hosted Pb, Kipushi, and polymetallic vein types. Some of these types have been further subdivided by various authors (Allen, 2003). In this study we include all of these types except polymetallic vein deposits because of their relatively small size. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: All deposit locations have been checked by comparison with GoogleEarth imagery. Many deposits have locations in these files that are substantially different than published locations as a result. Generally location is intended to plot within the alteration zone of deposit which may be kilometers across. Lineage: Process_Step: Process_Description: Dataset authors gathered information from previously published reports. Deposits selected A mineral deposit is a mineral occurrence of sufficient size and grade that might, under the most favorable circumstances, be considered to have economic potential (Cox, Barton, and Singer, 1986). Deposits sharing a relatively wide variety and large number of attributes are characterized as a “type,” and a model representing that type can be developed. Sediment-hosted Zn-Pb deposits are hosted in a variety of sedimentary rocks and have commonly been classified into skarns, polymetallic replacements, Mississippi Valley Zn-Pb (MVT), Sedimentary-exhalative Zn-Pb (SEDEX), sandstone-hosted Pb, Kipushi, and polymetallic vein types. Some of these types have been further subdivided by various authors (Allen, 2003). In this study we include all of these types except polymetallic vein deposits because of their relatively small size. Spatial rules used An important consideration at the data gathering stage is the question of what the sampling unit should be. Grade and tonnage data are available to varying degrees for districts, deposits, mines, and shafts. For the deposits in this file, the following rule was used to determine which ore bodies were combined. All mineralized rock or alteration within two kilometers was combined into one deposit for these deposits. Thus, if the alteration zones of two deposits are within two kilometers of each other, they were combined. Such an operational spatial rule is necessary for defining deposits because we must be able to classify deposits in regions with highly variable geologic information and to avoid bias in estimating undiscovered deposits in resource assessments in areas where detailed information is lacking, such as under cover. The two-kilometer rule was developed to try to insure that deposits in grade and tonnage and spatial density models correspond to deposits as geologic entities. Rules, such as the two-kilometer rule applied here, are essential in order to have an internally consistent assessment system where the estimated number of undiscovered deposits is consistent with the grade and tonnage model. Process_Date: 2009 Source_Produced_Citation_Abbreviation: USGS OFR 2009-1252 Process_Step: Process_Description: Metadata record created by report authors, using ArcGIS metadata editor. Process_Date: 20090921 Source_Produced_Citation_Abbreviation: https://pubs.usgs.gov/of/2009/1252/SedZn-Pb_meta.txt Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: US Geological Survey Contact_Person: Barry Moring Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 345 Middlefield Rd. MS 901 City: Menlo Park State_or_Province: CA. Postal_Code: 94025 Country: USA Contact_Voice_Telephone: 650.329.5360 Contact_Electronic_Mail_Address: moring@usgs.gov Process_Step: Process_Description: Metadata edited to improve completeness and consistency, updating keywords, links, and some contact information. Process_Date: 20210121 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: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 506 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.0001 Longitude_Resolution: 0.0001 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: main Entity_Type_Definition: General descriptive information about the deposit Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: rec_id Attribute_Definition: Record ID. A distinct numerical identifier for the database record without further scientific significance, assigned by the data manager of mrdata.usgs.gov. Integer values. Int of width 4. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 506 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: depname Attribute_Definition: Deposit name. The most recent deposit name Textual values of no more than 31 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 31 characters. Attribute: Attribute_Label: altname Attribute_Definition: Other names. Alternative names that have been used for the deposit. Textual values of no more than 30 characters. 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Average grade of zinc for the deposit, as percent of metal in ore. Zero value means the grade (always for byproducts) was unavailable. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 33 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: pbgrd Attribute_Definition: Lead grade. Average grade of lead for the deposit, as percent of metal in ore. Zero value means the grade (always for byproducts) was unavailable. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 24 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: cugrd Attribute_Definition: Copper grade. Average grade of copper for the deposit, as percent of metal in ore. Zero value means the grade (always for byproducts) was unavailable. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 10 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: aggrd Attribute_Definition: Silver grade. Average grade of silver for the deposit, as grams per metric ton of ore. Zero value means the grade (always for byproducts) was unavailable. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 1400 Attribute_Units_of_Measure: grams per metric ton Attribute: Attribute_Label: augrd Attribute_Definition: Gold grade. Average grade of gold for the deposit, as grams per metric ton of ore. Zero value means the grade (always for byproducts) was unavailable. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 10 Attribute_Units_of_Measure: grams per metric ton Attribute: Attribute_Label: deptype Attribute_Definition: Type of deposit. Classification of the deposit using a system new to this report using the observed rocks reported in maps rather than characteristics that are frequently unobservable in yet-to-be discovered deposits. Textual values of no more than 7 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CAam Enumerated_Domain_Value_Definition: Carbonate-hosted amagmatic Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SHam Enumerated_Domain_Value_Definition: Shale-hosted amagmatic Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MLig Enumerated_Domain_Value_Definition: Mixed-lithology igneous Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SSPb Enumerated_Domain_Value_Definition: Sand-stone-hosted Lead Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CAig Enumerated_Domain_Value_Definition: Carbonate-hosted igneous Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CAme Enumerated_Domain_Value_Definition: Carbonate-hosted metamorphic Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kipuchi Enumerated_Domain_Value_Definition: Kipuchi-type Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Shig Enumerated_Domain_Value_Definition: Shale-hosted igneous Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MLme Enumerated_Domain_Value_Definition: Mixed-lithology metamorphic Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: prevtype Attribute_Definition: Previous type. Classification of the deposit given in previous literature according to the most common reporting of the deposits into skarns (ZnSkarn), polymetallic replacements (POLYREPL), Mississippi Valley Zn-Pb (MVT), Sedimentary-exhalative Zn-Pb (SEDEX), sandstone-hosted Pb (SSPb), and Kipushi (Kipushi) types. Textual values of no more than 11 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SEDEX Enumerated_Domain_Value_Definition: sedimentary exhalative deposit Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MVT Enumerated_Domain_Value_Definition: Mississippi Valley Type deposit Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ZnSkarn Enumerated_Domain_Value_Definition: Zinc skarn deposit Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: POLYREPL Enumerated_Domain_Value_Definition: Polymetallic replacement deposit Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SSPb Enumerated_Domain_Value_Definition: Sandstone-hosted lead deposit Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Kipushi Enumerated_Domain_Value_Definition: Kipushi-type volcanogenic massive sulfide deposit Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SEDEX, MVT? Enumerated_Domain_Value_Definition: Either sedimentary exhalative deposit or Mississippi Valley Type, likely the former Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SEDEX, Enumerated_Domain_Value_Definition: sedimentary exhalative deposit Enumerated_Domain_Value_Definition_Source: this dataset Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SEDEX; MVT Enumerated_Domain_Value_Definition: Either sedimentary exhalative deposit or Mississippi Valley Type Enumerated_Domain_Value_Definition_Source: this dataset Attribute: Attribute_Label: depage Attribute_Definition: Age of deposit. Age of the deposit expressed using standard divisions of geologic time or in millions of years, when available. Textual values of no more than 68 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. 113 records have no value for depage. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: agemy Attribute_Definition: Age. Age of the deposit in millions of years before the present based on reported absolute (typically thermal dates) 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: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 140 records have no value for agemy. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 2600 Attribute_Units_of_Measure: million years Attribute: Attribute_Label: deplength Attribute_Definition: Deposit length. Length in km of the major axis of the ellipse that best fits the shape of the ore body projected in two dimensions to the surface. Textual values of no more than 18 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. 338 records have no value for deplength. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: depwidth Attribute_Definition: Deposit width. Length in km of the minor axis of the ellipse that best fits the shape of the ore body projected in two dimensions to the surface. Real numbers stored in double precision. 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. 384 records have no value for depwidth. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.012 Range_Domain_Maximum: 35 Attribute_Units_of_Measure: km Attribute: Attribute_Label: depthick Attribute_Definition: Deposit thick. Thickness of the ore body in meters where known. 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. 416 records have no value for depthick. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: orearea Attribute_Definition: Area of orebody. Estimated area of the ore body, modeled as an ellipse, given in square km. Real numbers stored in double precision. 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. 154 records have no value for orearea. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 10000 Attribute_Units_of_Measure: sq km Attribute: Attribute_Label: altarea Attribute_Definition: Alteration area. Estimated area of the alteration zone around the mineral deposit, modeled as an ellipse, given in square km. Real numbers stored in double precision. 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. 489 records have no value for altarea. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.13 Range_Domain_Maximum: 23.6 Attribute_Units_of_Measure: sq km Attribute: Attribute_Label: altwidth Attribute_Definition: Alteration width. Length in km of the minor axis of the ellipse that best fits the shape of the alteration zone projected in two dimensions to the surface. Real numbers stored in double precision. 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. 491 records have no value for altwidth. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.2 Range_Domain_Maximum: 4 Attribute_Units_of_Measure: km Attribute: Attribute_Label: altlength Attribute_Definition: Alteration length. Length in km of the major axis of the ellipse that best fits the shape of the alteration zone projected in two dimensions to the surface. Real numbers stored in double precision. 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. 490 records have no value for altlength. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.45 Range_Domain_Maximum: 10 Attribute_Units_of_Measure: km Attribute: Attribute_Label: hostrock Attribute_Definition: Host rock. Type of rocks hosting the ore body, in the same terms used in published maps and reports, listed alphabetically without regard for their relative thickness. Textual values of no more than 250 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 250 characters. Attribute: Attribute_Label: hostthick Attribute_Definition: Host RockThickness. Thickness in meters of the host rock unit. Textual values of no more than 14 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. 211 records have no value for hostthick. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: hostdeform Attribute_Definition: Host Rock Deformation. Deformation of the host rocks. Textual values of no more than 81 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. 181 records have no value for hostdeform. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: hostmeta Attribute_Definition: Host rock metamorphism. Metamorphism of the host rocks. Textual values of no more than 189 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. 215 records have no value for hostmeta. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: rockunder Attribute_Definition: Rock underlying. Type of rocks underlying the host rock. Textual values of no more than 187 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. 221 records have no value for rockunder. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: underthick Attribute_Definition: Underlying rock thickness. Thickness of the underlying rock unit. Textual values of no more than 11 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. 340 records have no value for underthick. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: rockover Attribute_Definition: Rock overlying. Type of rocks overlying the host rock. Textual values of no more than 146 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. 227 records have no value for rockover. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: overthick Attribute_Definition: Overlying rock thickness. Thickness of the overlying rock unit. Textual values of no more than 10 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. 320 records have no value for overthick. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: ignrelrock Attribute_Definition: Igneous relatedt rocks. Igneous rocks and their ages are recorded if the event may be as young or younger than the mineral deposit. Thin layers of ash are recorded in the host-rock field rather than here. Textual values of no more than 184 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. 199 records have no value for ignrelrock. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: discont Attribute_Definition: Discontinuity. Either disconformities between parallel host-rock strata or angular unconformities in the host rocks. Textual values of no more than 86 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. 380 records have no value for discont. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: ndiscont Attribute_Definition: Number of discontinuities. Number of discontinuities in the host rocks. In some cases, the number or kind of discontinuity was not reported in the literature, but the presence or absence was reported. For these cases, we use a simple yes or no. Textual values of no more than 4 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. 459 records have no value for ndiscont. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: tectset Attribute_Definition: Tectonostratigraphic setting. The age and general tectonic setting of the deposit. Textual values of no more than 255 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 255 characters. Attribute: Attribute_Label: dep5km Attribute_Definition: Other deposits within 5km. Listing of other deposits by type that are within 5 km of the subject deposit. Each deposit type is coded as the deposit-type number and deposit type as listed in USGS Bulletins 1693 (Cox and Singer, 1986) and 2004 (Bliss, 1992). Textual values of no more than 46 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. 285 records have no value for dep5km. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: dep5km10km Attribute_Definition: Other deposits between 5km and 10km. Listing of other deposits by type that are between 5 and 10 km of the subject deposit. Each deposit type is coded as the deposit-type number and deposit type as listed in USGS Bulletins 1693 (Cox and Singer, 1986) and 2004 (Bliss, 1992). 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. 372 records have no value for dep5km10km. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: startdate Attribute_Definition: Startup date. Date mining of the deposit began, if this is know. Textual values of no more than 30 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. 258 records have no value for startdate. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: discdate Attribute_Definition: Discovery date. Date the deposit was discovered, where this is known. Textual values of no more than 30 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. 202 records have no value for discdate. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: comments Attribute_Definition: Comments. Supplementary information about incompletely explored deposits and some grades, such as Co, when available. Textual values of no more than 255 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. 71 records have no value for comments. Enumerated_Domain_Value_Definition_Source: this data release Detailed_Description: Entity_Type: Entity_Type_Label: minerals Entity_Type_Definition: Mineralogy of the deposit as reported in scientific literature Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: rec_id Attribute_Definition: Record ID. Numerical identifier for the deposit, matches a value in main:rec_id Integer values. Int of width 4. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 506 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: value Attribute_Definition: Mineralogy. Name of minerals reported as present in the deposit, without regard for their abundance. Most rock-forming minerals, such as feldspar, calcite, and quartz, are not included. Some variants of rock forming minerals that may be related to mineralization or alteration, such as Ag calcite, are included. 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: ref Entity_Type_Definition: Scientific literature consulted by the authors to characterize the deposit Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: rec_id Attribute_Definition: Record ID. Numerical identifier for the deposit, matches a value in main:rec_id Integer values. Int of width 4. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 506 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: value Attribute_Definition: References. Papers and web sites that were used to describe the deposit. In a few cases unpublished sources were used. Textual values of no more than 255 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Textual values of no more than 255 characters. 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: 72 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: 4 Attribute: Attribute_Label: tblname Attribute_Definition: Table name. Name of the table 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: 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: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 49 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: Unrepresentable_Domain: Textual values of no more than 32 characters. 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: Unrepresentable_Domain: Textual values of no more than 50 characters. 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: Unrepresentable_Domain: Textual values of no more than 40 characters. Attribute: Attribute_Label: description Attribute_Definition: Description. Longer description of the purpose and contents of the field Textual values of no more than 4096 characters. 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: Unrepresentable_Domain: No records have a value for this field. 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: Unrepresentable_Domain: No records have a value for this field. 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: Unrepresentable_Domain: Textual values of no more than 8 characters. 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: C Enumerated_Domain_Value_Definition: character data Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: N Enumerated_Domain_Value_Definition: numeric data 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: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 4096 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: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 6 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: 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: 12201 Sunrise Valley Drive City: Reston State_or_Province: VA Postal_Code: 20192-0002 Country: USA Contact_Voice_Telephone: 703-648-6533 Contact_Facsimile_Telephone: 703-648-6252 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Resource_Description: USGS Open File Report 2009-1252 Distribution_Liability: This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards (or with the North American Stratigraphic Code). Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Shapefile Format_Version_Number: 1.0 Format_Information_Content: Simple shapefile with a URL to full site report, with all attribute data as CSV tables File_Decompression_Technique: unzip Transfer_Size: 0.3 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://mrdata.usgs.gov/sedznpb/sedznpb-csv.zip Digital_Form: Digital_Transfer_Information: Format_Name: CSV Format_Version_Number: 1.0 Format_Information_Content: Attribute data for mineral deposit locations File_Decompression_Technique: unzip Transfer_Size: 0.3 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://mrdata.usgs.gov/sedznpb/sedznpb-csv.zip Digital_Form: Digital_Transfer_Information: Format_Name: Filemaker Pro Format_Version_Number: 7 Format_Information_Content: Mineral deposit locations with site characteristics Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/of/2009/1252/SedZn-Pb.fp7 Digital_Form: Digital_Transfer_Information: Format_Name: XLS Format_Version_Number: 8 Format_Information_Content: Mineral deposit locations with site characteristics Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/of/2009/1252/SedZn-PbEX2009.xls Digital_Form: Digital_Transfer_Information: Format_Name: WMS Format_Version_Number: 1.3.0 Format_Information_Content: Deposit locations and characteristics Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://mrdata.usgs.gov/services/sedznpb?request=getcapabilities&service=WMS&version=1.3.0& Digital_Form: Digital_Transfer_Information: Format_Name: WFS Format_Version_Number: 1.0.0 Format_Information_Content: Deposit locations and minimal descriptive information Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://mrdata.usgs.gov/wfs/sedznpb?request=getcapabilities&service=WFS&version=1.0.0& Fees: none Metadata_Reference_Information: Metadata_Date: 20210121 Metadata_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: 12201 Sunrise Valley Drive City: Reston State_or_Province: VA Postal_Code: 20192-0002 Country: USA Contact_Voice_Telephone: 703-648-6533 Contact_Facsimile_Telephone: 703-648-6252 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998