Metadata: Identification_Information: Citation: Citation_Information: Originator: Jones, J.V., III Originator: Karl, S.M. Originator: Labay, K.A. Originator: Shew, N.B. Originator: Granitto, M. Originator: Hayes, T.S. Originator: Mauk, J.L. Originator: Schmidt, J.M. Originator: Todd, E. Originator: Wang, B. Originator: Werdon, M.B. Originator: Yager, D.B. Publication_Date: 2015 Title: GIS-based Identification of Areas with Mineral Resource Potential for Six Selected Deposit Types, Bureau of Land Management Central Yukon Planning Area, Alaska Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 2015-1021 Online_Linkage: http://pubs/usgs/gov/of/2015/1021 Description: Abstract: Maps showing the estimated potential and relative certainty of various mineralization models in the Bureau of Land Management Central Yukon Planning Area, Alaska. Purpose: To estimate the potential of mineral resources in the Bureau of Land Management Central Yukon Planning Area using geographic information systems (GIS) analysis of muliple statewide datasets. The six mineral deposit models are: 1) REE-Th-Y-Nb deposits associated with peralkaline to carbonatitic intrusive rocks, 2) placer and paleoplacer Au, 3) PGE (-Co-Cr-Ni-Ti-V) deposits associated with mafic-to-ultramafic intrusive rocks, 4) carbonate-hosted Cu (-Co-Ag-Ge-Ga) deposits, 5) sandstone U (-V-Cu) deposits, and 6) Sn-W-Mo (-Ta-In-fluorspar) deposits in specialized granites. GIS data layers available for analysis include sediment and rock geochemistry, pan concentrate mineralogy and geochemistry, Alaska Resource Data File, and regional geologic mapping. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2015 Currentness_Reference: publication date Status: Progress: Planned Maintenance_and_Update_Frequency: Irregular Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -162.5 East_Bounding_Coordinate: -142.9 North_Bounding_Coordinate: 71.1 South_Bounding_Coordinate: 62.3 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: mineral resource Theme_Keyword: mineral potential Theme_Keyword: REE Theme_Keyword: PGE Theme_Keyword: placer Theme_Keyword: U Theme_Keyword: strategic and critical minerals Place: Place_Keyword_Thesaurus: None Place_Keyword: Alaska Place_Keyword: Central Yukon Planning Area Place_Keyword: northern Alaska Access_Constraints: None Use_Constraints: None. Acknowledgment of the U.S. Geological Survey would be appreciated in products derived from these data. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Timothy S. Hayes Contact_Position: Research Geologist Contact_Address: Address_Type: mailing and physical Address: 520 N. Park Avenue Ste. 355 City: Tucson State_or_Province: AZ Postal_Code: 85719 Country: U.S.A. Contact_Voice_Telephone: 520-670-5024 Contact_Electronic_Mail_Address: thayes@usgs.gov Data_Set_Credit: This data set was prepared by Matt Granitto, Keith Labay, Greg Lee, Jeanine Schmidt, and Nora Shew Native_Data_Set_Environment: Data was created using ESRI ArcGIS, version 10.2. Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: There were many sources of data of varying scale and positional accuracy used in these analyses. These data are used to evaluate 12-digit HUC (hydrologic unit code) areas, which are large areas which encompass multiple drainage areas. Logical_Consistency_Report: Each polygon contains an estimate of potential and uncertainty of a particular mineral deposit model to be found in that polygon. Estimates are based on the proximity of certain favorable geologic conditions found in multiple statewide datasets. Descriptions of the scoring methods for each model is described in the text portion of this publication. Completeness_Report: None of the datasets used in scoring the 12-digit HUCs has even distribution of data in the area of interest. One of the purposes of this analysis is to use existing data to frame a better understanding of mineral resouces in the state of Alaska. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Matthew Granitto Originator: Jeanine M. Schmidt Originator: Nora B. Shew Originator: Bruce M. Gamble Originator: Keith A. Labay Publication_Date: 2013 Title: Alaska Geochemical Database Version 2.0 (AGDB2) - Including "Best Value" data compilations for rock, sediment, soil, mineral, and concentrate sample media Geospatial_Data_Presentation_Form: tabular digital data Series_Information: Series_Name: USGS Data Series Issue_Identification: 759 Online_Linkage: pubs.usgs.gov/ds/759/ Type_of_Source_Media: DVD and online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2013 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: AGDB2 Source_Contribution: AGDB2 is the USGS compilation of geochemical analyses of Alaska samples. Sample media include rock, sediment, soil, mineral, and heavy-mineral concentrate. The stream sediment geochemistry used in the resource potential analyses is a compilation of data from AGDB2, Alaska Division of Geological and Geophysical Surveys (ADGGS), and the National Uranium Resource Evaluation (NURE) data set. The AGDB2 contributed approximately 55 percent of the total stream sediment geochemistry samples. Igneous rock geochemistry was collected from 3 sources, AGDB2, ADGGS, and from published literature. AGDB2 also contributed data on the mineralogy and geochemistry of nonmagnetic heavy mineral concentrates. Process_Step: Process_Description: AGDB2 "best value" stream sediment geochemistry was combined with similar data from ADGGS and NURE data sets. The "best value" represents the value done by the better analytical method for samples that were analyzed by multiple methods. A more detailed description of how "best value" is determined is available in the AGDB2 publication. The statistical measures of median, 75th, 91st, and 98th percentiles were calculated on the combined AGDB2, ADGGS, and NURE sediment data. These analyses have been measured over a long period of time and have used different analytical methods with varying detection limits. For elements with less than 50% censored data, the censored datum was replaced with either half the minimum non-censored value, or half of the minimum lower detection limit, whichever was smaller. If the number of censored data was greater than 50%, then statistics were estimated using the Kaplan-Meier method. Process_Date: 2013 Process_Step: Process_Description: Rock data from AGDB2 was combined with rock data from ADGGS. In addtion, a subset of AGDB2 and ADGGS rock data was combined with data from published literature to create an igneous rock geochemistry data base. These data were used to analyze various ratios and other igneous rock indices. Process_Date: 2014 Process_Step: Process_Description: The mineralogy and geochemistry of the nonmagnetic heavy mineral concentrates were each converted to a geodatabase. Process_Date: 2013 Source_Information: Source_Citation: Citation_Information: Originator: Alaska Division of Geological and Geophysical Surveys Publication_Date: Unknown Title: WebGeochem: DGGS Geochemical Sample Analysis Search website www.dggs.alaska.gov/webgeochem/ Geospatial_Data_Presentation_Form: online Online_Linkage: www.dggs.alaska.gov/webgeochem/ Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2013 Source_Currentness_Reference: date of download Source_Citation_Abbreviation: ADGGS Source_Contribution: The ADGGS database provided about 6 percent of the analyses in the combined AGDB2, ADGGS, and NURE sediment geochemistry data set. ADGGS data comprises approximately 11% of the total rock geochemistry used in this project. Process_Step: Process_Description: The statistical measures of median, 75th, 91st, and 98th percentiles were calculated on the combined AGDB2, ADGGS, and NURE sediment data. These analyses have been measured over a long period of time and have used different analytical methods with varying detection limits. For elements with less than 50% censored data, the censored datum was replaced with either half the minimum non-censored value, or half of the minimum lower detection limit, whichever was smaller. If the number of censored data was greater than 50%, then statistics were estimated using the Kaplan-Meier method. Process_Date: 2013 Process_Step: Process_Description: Rock data from ADGGS was combined with rock data from AGDB2. In addtion, a subset of AGDB2 and ADGGS rock data was combined with data from published literature to create an igneous rock geochemistry data base. These data were used to analyze various ratios and other igneous rock indices. Process_Date: 2014 Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2004 Title: National Uranium Resource Evaluation (NURE) hydrogeochemical and stream sediment reconnaissance data Geospatial_Data_Presentation_Form: online database Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 97-492 Online_Linkage: http://pubs.usgs.gov/of/1997/ofr-97-0492/ or http://mrdata.usgs.gov/nure/sediment/ Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2004 Source_Currentness_Reference: date of download Source_Citation_Abbreviation: NURE Source_Contribution: The NURE data comprises approximately 38% of the analyses in the combined AGDB2, ADGGS, and NURE sediment geochemistry data set. Process_Step: Process_Description: The statistical measures of median, 75th, 91st, and 98th percentiles were calculated on the combined AGDB2, ADGGS, and NURE sediment data. These analyses have been measured over a long period of time and have used different analytical methods with varying detection limits. For elements with less than 50% censored data, the censored datum was replaced with either half the minimum non-censored value, or half of the minimum lower detection limit, whichever was smaller. If the number of censored data was greater than 50%, then statistics were estimated using the Kaplan-Meier method. Process_Date: 2013 Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2008 Title: Alaska Resource Data File (ARDF) Geospatial_Data_Presentation_Form: database Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 2008-1225 Other_Citation_Details: data also available at: http://mrdata.usgs.gov/ardf Online_Linkage: http://ardf.wr.usgs.gov/ http://mrdata.usgs.gov/ardf/ Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2013 Source_Currentness_Reference: data download Source_Citation_Abbreviation: ARDF Source_Contribution: ARDF was a contributing factor in the scoring of mineral resource potential. Process_Step: Process_Description: The ARDF is text based database containing descriptions of mines, prospects, and mineral occurrences in Alaska. This project developed a method to 'quantify' ARDF records based on keywords in certain ARDF fields. The keywords were weighted by relevance to the mineral deposit of interest and records were individually scored. See this publication's text for more detailed description of the method. Process_Date: 2014 Source_Information: Source_Citation: Citation_Information: Originator: Frederic H. Wilson Publication_Date: Unpublished material Title: Alaska geologic map Geospatial_Data_Presentation_Form: vector digital data Source_Scale_Denominator: 500000 Type_of_Source_Media: geodatabase Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2013 Source_Currentness_Reference: date data was copied Source_Citation_Abbreviation: state geologic map Source_Contribution: A generalized geologic map was produced from the geology of Alaska data set in early 2013. The geology of Alaska data set was also used to derive various lithology layers for the mineral resource potential analyses. Process_Step: Process_Description: The polygons of the Alaska geologic map were grouped based on the geologic age of the rock unit and general rock type (volcanic, igneous, sedimentary, metamorphic, or unconsolidated), and then the polygons were dissolved to create a generalized geologic map. Process_Date: 2013 Process_Step: Process_Description: Polygons from the Alaska geologic map database were selected based on the presence and quantity of various rocks in the geologic unit description for the state map. If the rock is present in the geologic unit, and the amount of that rock is considered a 'major' (> 33%) or indeterminant portion of the unit, then the lithology is considered a 'major' proportion of that geologic unit. If the amount is 'minor' or incidental, the lithology is considered a 'minor' proportion. Once polygons were selected based on rock and quantity, the polygons were dissolved. Process_Date: 2013 Source_Information: Source_Citation: Citation_Information: Originator: Joseph S. Duval Publication_Date: 2001 Title: Aerial gamma-ray surveys in Alaska Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 2001-128 Online_Linkage: http://pubs.usgs.gov/of/2001/of01-128 Type_of_Source_Media: CD-ROM Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2001 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: aerorad Source_Contribution: This source provides the measure of flux of gamma rays emitted due to radioactive decay of naturally occuring elements K40 (potassium), U238 (uranium), and Th232 (thorium). These data were used in the analyses for the REE, Sn-W, and sandstone U models. Process_Step: Process_Description: The original K, Th, and U data was converted to geotiffs. An additional Th/K image was also created. Process_Date: 2012 Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2013 Title: Watershed boundary dataset Geospatial_Data_Presentation_Form: vector digital data Online_Linkage: http://nhd.usgs.gov/wbd.html Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2013 Source_Currentness_Reference: 11/13/2013 (date of download) Source_Citation_Abbreviation: HUC Source_Contribution: The 12-digit HUC (hydrologic unit code) hydrologic units are used to define the area boundaries for the mineral resource analyses. Process_Step: Process_Description: Any of the 12-digit hydrologic unit polygons overlapping the area of the BLM Central Yukon planning area (CYPA) is included in this project's area of interest. All six models included HUCs within a 100 km buffer to assist during evaluation. Process_Date: 2014 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: NAD 1983 Alaska Albers (Meters) Albers_Conical_Equal_Area: Standard_Parallel: 55.0 Standard_Parallel: 65.0 Longitude_of_Central_Meridian: -154.0 Latitude_of_Projection_Origin: 50.0 False_Easting: 0.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.001 Ordinate_Resolution: 0.001 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 297.9786982 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: REE_HUCs Entity_Type_Definition: Geodatabase feature class showing mineral resource potential estimation for REE-Th-Y-Nb (-U-Zr) deposits associated with peralkaline to carbonatitic instrusive rocks Entity_Type_Definition_Source: this data set Attribute: Attribute_Label: HUC12 Attribute_Definition: Field HUC12 contains the unique 12-digit hydrologic unit code identifying the sub-watershed area of the National Hydrography Dataset and Watershed Boundary Dataset. Attribute_Definition_Source: Watershed Boundary Dataset (WBD) of the Advisory Committee on Water Information (ACWI) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 190201010301 Range_Domain_Maximum: 190605021705 Attribute: Attribute_Label: SED_SCORE (alias SEDIMENT_SCORE) Attribute_Definition: Presence of certain elements in sediment geochemistry. Possible score of 1, 2, or 3, depending on the measured value of Nb, Ce, Yb, or Th. See publication text for cut offs of each element. Higher scores will replace lower scores. A null score denotes that there were no sediment samples of any type present in the HUC. Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 3 Attribute: Attribute_Label: ARDF_SCORE Attribute_Definition: Scoring for the ARDF keyword search. A null score denotes that there were no ARDF samples of any type present in the HUC. Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: keyword search TOTAL <= 2 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: keyword search TOTAL > 2 and TOTAL <= 5 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: keyword search TOTAL > 5 Attribute: Attribute_Label: IGN_SCORE (alias IGNEOUS_SCORE) Attribute_Definition: Scores from igneous indices for ASI (aluminum saturation index), 10000*Ga/Al (gallium over aluminum), or displacement of Fe#. Points are additive for a maximum of 3 points. See publication text for selection details. A null score denotes that there were no igneous samples of any type present in the HUC. Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 3 Attribute: Attribute_Label: AERORAD_SCORE Attribute_Definition: Score for Th/K value from aerorad data set. A null score denotes that there were no ARDF samples of any type present in the HUC. Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: Th/K value <= 5 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Th/K value > 5 and <= 12 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: Th/K value > 12 Attribute: Attribute_Label: TOTAL_SCORE Attribute_Definition: The sum of the individual scores (SED_SCORE, IGN_SCORE, ARDF_SCORE, and AERORAD_SCORE) Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 16 Attribute: Attribute_Label: SED_PCT (alias SEDIMENT_PCT) Attribute_Definition: The percentage of SED_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: ARDF_PCT Attribute_Definition: The percentage of ARDF_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: IGN_PCT (alias IGNEOUS_PCT) Attribute_Definition: The percentage of IGN_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: AERORAD_PCT Attribute_Definition: The percentage of the score from AERORAD_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: POTENTIAL Attribute_Definition: Relative description of estimated potential of REE minerals in this HUC based on the scoring methodology for the REE deposit model Attribute_Definition_Source: this data set Attribute_Domain_Values: Unrepresentable_Domain: Relative terms of LOW, MED, and HIGH. See this publication's text for complete description Attribute: Attribute_Label: CERTAINTY Attribute_Definition: Relative description of certainty of the estimated potential of REE minerals in this HUC based on the scoring methodology for the REE deposit model Attribute_Definition_Source: this data set Attribute_Domain_Values: Unrepresentable_Domain: Relative terms of LOW, MED, and HIGH. See this publication's text for complete description Attribute: Attribute_Label: SYMBOL Attribute_Definition: Concatenation of POTENTIAL and CERTAINTY used to symbolize the HUC scoring graphic. Attribute_Definition_Source: this data source Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,HIGH Enumerated_Domain_Value_Definition: dark red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,MED Enumerated_Domain_Value_Definition: medium red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,LOW Enumerated_Domain_Value_Definition: light red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,HIGH Enumerated_Domain_Value_Definition: dark yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,MED Enumerated_Domain_Value_Definition: medium yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,LOW Enumerated_Domain_Value_Definition: light yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,HIGH Enumerated_Domain_Value_Definition: dark green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,MED Enumerated_Domain_Value_Definition: medium green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,LOW Enumerated_Domain_Value_Definition: light green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: UNKNOWN Enumerated_Domain_Value_Definition: dark gray Detailed_Description: Entity_Type: Entity_Type_Label: Placer_HUCs Entity_Type_Definition: Geodatabase feature class showing mineral resource potential estimation for placer and paleoplacer gold Entity_Type_Definition_Source: this data set Attribute: Attribute_Label: HUC12 Attribute_Definition: Field HUC12 contains the unique 12-digit hydrologic unit code identifying the sub-watershed area of the National Hydrography Dataset and Watershed Boundary Dataset. Attribute_Definition_Source: Watershed Boundary Dataset (WBD) of the Advisory Committee on Water Information (ACWI) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 190201010301 Range_Domain_Maximum: 190605021705 Attribute: Attribute_Label: SED_SCORE (alias SEDIMENT_SCORE) Attribute_Definition: Presence of certain elements in sediment geochemistry. Possible score of 1 or 3, depending on the measured value of Au, Ag, Ti, or W. See publication text for cut offs of each element. Scores are additive A null score denotes that there were no sediment samples of any type present in the HUC. Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 8 Attribute: Attribute_Label: ARDF_SCORE Attribute_Definition: Scoring for the ARDF keyword search Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: keyword search TOTAL <= 0 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 10 Enumerated_Domain_Value_Definition: keyword search TOTAL > 0 Attribute: Attribute_Label: MIN_SCORE (alias MINERAL_SCORE) Attribute_Definition: Presence of certain minerals identified in pan concentrate mineralogy. The score is additive unless gold is present which replaces the lower score with 10 points. If cassiterite, powellite, scheelite, cinnabar, monazite, or thorite is present, 1 point each. Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 10 Attribute: Attribute_Label: LITH_SCORE (alias LITHOLOGY_SCORE) Attribute_Definition: Presence of igneous or metaigneous rock units from the state geologic map Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: An igneous or metaigneous geologic unit from the state geologic map is not present Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: A volcanic or metaigneous geologic unit on the state map is present Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: A plutonic rock as a minor component of a geologic unit on the state map is present Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: A plutonic rock as a major component of a geologic unit on the state map is present Attribute: Attribute_Label: STREAM_SCORE Attribute_Definition: Scores for HUCs downstream of areas with high potential for placer or paleoplacer gold Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: Not considered downstream of a HUC with high potential for placer gold Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: River or stream downstream of HUC with high potential for placer gold past intersection with equal or higher stream order segment Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: River or stream greater than 25 km downstream of a HUC with high potential for placer gold Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 6 Enumerated_Domain_Value_Definition: Within 25 km downstream of a HUC with high potential for placer gold Attribute: Attribute_Label: TOTAL_SCORE Attribute_Definition: The sum of the individual scores (SED_AU_SCORE, SED_AG_SCORE, SED_TI_SCORE, SED_W_SCORE, ARDF_SCORE, MINERAL_SCORE, LITH_SCORE, and STREAM_SCORE) Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 37 Attribute: Attribute_Label: ARDF_PCT Attribute_Definition: The percentage of ARDF_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: MINL_PCT (alias MINERAL_PCT) Attribute_Definition: The percentage of MIN_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: SED_PCT (alias SEDIMENT_PCT) Attribute_Definition: The percentage of the scores from sediment geochemistry data of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: LITH_PCT (alias LITHOLOGY_PCT) Attribute_Definition: The percentage of LITH_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: STREAM_PCT Attribute_Definition: The percentage of STREAM_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: POTENTIAL Attribute_Definition: Relative description of estimated potential of placer or paleoplacer Au in this HUC based on the scoring methodology for the placer or paleoplacer Au deposit model Attribute_Definition_Source: this data set Attribute_Domain_Values: Unrepresentable_Domain: Relative terms of LOW, MED, and HIGH. See this publication's text for complete description Attribute: Attribute_Label: CERTAINTY Attribute_Definition: Relative description of certainty of the estimated potential of placer or paleoplacer Au in this HUC based on the scoring methodology for the placer or paleoplacer Au deposit model Attribute_Definition_Source: this data set Attribute_Domain_Values: Unrepresentable_Domain: Relative terms of LOW, MED, and HIGH. See this publication's text for complete description Attribute: Attribute_Label: SYMBOL Attribute_Definition: Concatenation of POTENTIAL and CERTAINTY used to symbolize the placer or paleoplacer scoring graphic. Attribute_Definition_Source: this data source Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,HIGH Enumerated_Domain_Value_Definition: dark red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,MED Enumerated_Domain_Value_Definition: medium red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,LOW Enumerated_Domain_Value_Definition: light red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,HIGH Enumerated_Domain_Value_Definition: dark yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,MED Enumerated_Domain_Value_Definition: medium yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,LOW Enumerated_Domain_Value_Definition: light yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,HIGH Enumerated_Domain_Value_Definition: dark green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,MED Enumerated_Domain_Value_Definition: medium green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,LOW Enumerated_Domain_Value_Definition: light green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: UNKNOWN Enumerated_Domain_Value_Definition: dark gray Detailed_Description: Entity_Type: Entity_Type_Label: PGE_HUCs Entity_Type_Definition: Geodatabase feature class showing mineral resource potential estimation for PGE (-Co-Cr-Ni-Ti-V) deposits associated with mafic-to-ultramafic intrusive rocks Entity_Type_Definition_Source: this data set Attribute: Attribute_Label: HUC12 Attribute_Definition: Field HUC12 contains the unique 12-digit hydrologic unit code identifying the sub-watershed area of the National Hydrography Dataset and Watershed Boundary Dataset. Attribute_Definition_Source: Watershed Boundary Dataset (WBD) of the Advisory Committee on Water Information (ACWI) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 190201010301 Range_Domain_Maximum: 190605021705 Attribute: Attribute_Label: SED_SCORE (alias SEDIMENT_SCORE) Attribute_Definition: Presence of certain elements in sediment geochemistry. Possible score of 1, 2, or 3, depending on the measured value of Co, Cr, Ni, Ti, V, Os, Pd, or Pt. See publication text for cut offs of each element. Higher scores will replace lower scores. A null score denotes that there were no sediment samples of any type present in the HUC. Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 3 Attribute: Attribute_Label: ARDF_SCORE Attribute_Definition: Presence of ARDF record with relative possibility of being a PGE deposit Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: No ARDF locality with PGE evidence Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: ARDF model is uncertain but may be permissible for PGEs Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: ARDF locality is permissible mode for PGEs Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: ARDF locality has PGE potential or PGEs present Attribute: Attribute_Label: MIN_SCORE (alias MINERAL_SCORE) Attribute_Definition: Presence of chromite, copper-cobalt-sulfides, nickel-cobalt sulfides, nickel sulfides, chromite-nickel sulfides, serpentine, Cr-diopside, or chalcopyrite in the heavy mineral concentrate mineralogy. Also includes scores for high on ARDF keyword search if deposit is a placer. See publication text for point allocation. Higher scores will replace lower scores. Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 3 Attribute: Attribute_Label: RCK_SCORE (alias ROCK_SCORE) Attribute_Definition: Presence of certain elements in rock geochemistry. Possible score of 1, 2, or 3 depending on measured value of Co, Cr, Ni, TiO2, V, Ir, Pd, Rh, or Ru. See publication text for cut offs of each element. Higher scores will replace lower scores Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 3 Attribute: Attribute_Label: HMC_SCORE (alias HEAVY_MIN_CONC_SCORE) Attribute_Definition: Possible score of 1, 2, or 3 depending on presence of Ir, Os, Pd, Pt, Rh, Ru, Co, Cr, Ni, Ti, or V in the geochemistry analyses of heavy mineral concentrates. See publication text for cut offs for each element. Higher scores will replace lower scores Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 3 Attribute: Attribute_Label: LITH_SCORE (alias LITHOLOGY_SCORE) Attribute_Definition: Presence of mafic or ultramafic rock units on the state geologic map Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: A mafic or ultramafic geologic unit on the state geologic map is not present Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: A mafic or ultramafic rock as a minor component of a geologic unit on the state map is present Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: A mafic or ultramafic rock as a major component of a geologic unit on the state map is present Attribute: Attribute_Label: TOTAL_SCORE Attribute_Definition: The sum of the individual scores (LITH_SCORE, RCK_SCORE, HMC_SCORE, SED_SCORE, MIN_SCORE and ARDF_SCORE). Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 17 Attribute: Attribute_Label: SED_PCT (alias SEDIMENT_PCT) Attribute_Definition: The percentage of SED_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: ARDF_PCT Attribute_Definition: The percentage of ARDF_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: MIN_PCT (alias MINERAL_PCT) Attribute_Definition: The percentage of MIN_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: RCK_PCT (alias ROCK_PCT) Attribute_Definition: The percentage of RCK_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: HMC_PCT (alias HEAVY_MIN_CONC_PCT) Attribute_Definition: The percentage of HMC_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: LITH_PCT (alias LITHOLOGY_PCT) Attribute_Definition: The percentage of LITH_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: POTENTIAL Attribute_Definition: Relative description of estimated potential for PGE deposits in this HUC based on the scoring methodology for the PGE deposit model Attribute_Definition_Source: this data set Attribute_Domain_Values: Unrepresentable_Domain: Relative terms of LOW, MED, and HIGH. See this publication's text for complete description Attribute: Attribute_Label: CERTAINTY Attribute_Definition: Relative description of certainty of the estimated potential for PGE deposits in this HUC based on the scoring methodology for the PGE deposit model Attribute_Definition_Source: this data set Attribute_Domain_Values: Unrepresentable_Domain: Relative terms of LOW, MED, and HIGH. See this publication's text for complete description Attribute: Attribute_Label: SYMBOL Attribute_Definition: Concatenation of POTENTIAL and CERTAINTY used to symbolize the PGE scoring graphic. Attribute_Definition_Source: this data source Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,HIGH Enumerated_Domain_Value_Definition: dark red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,MED Enumerated_Domain_Value_Definition: medium red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,LOW Enumerated_Domain_Value_Definition: light red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,HIGH Enumerated_Domain_Value_Definition: dark yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,MED Enumerated_Domain_Value_Definition: medium yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,LOW Enumerated_Domain_Value_Definition: light yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,HIGH Enumerated_Domain_Value_Definition: dark green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,MED Enumerated_Domain_Value_Definition: medium green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,LOW Enumerated_Domain_Value_Definition: light green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: UNKNOWN Enumerated_Domain_Value_Definition: dark gray Detailed_Description: Entity_Type: Entity_Type_Label: CuCarb_HUCs Entity_Type_Definition: Geodatabase feature class showing mineral resource potential estimation for carbonate-hosted Cu (-Co-Ag-Ge-Ga) deposits Entity_Type_Definition_Source: this data set Attribute: Attribute_Label: HUC12 Attribute_Definition: Field HUC12 contains the unique 12-digit hydrologic unit code identifying the sub-watershed area of the National Hydrography Dataset and Watershed Boundary Dataset. Attribute_Definition_Source: Watershed Boundary Dataset (WBD) of the Advisory Committee on Water Information (ACWI) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 190201010301 Range_Domain_Maximum: 190605021705 Attribute: Attribute_Label: SED_SCORE (alias SEDIMENT_SCORE) Attribute_Definition: Presence of certain elements in sediment geochemistry. Possible score of 1, 2, or 3, depending on the measured value of Cu. See publication text for element cut offs. Higher scores will replace lower scores. A null score denotes that there were no sediment samples of any type present in the HUC. Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 3 Attribute: Attribute_Label: SEDTR_SCORE (alias SEDIMENT_TRACE_SCORE) Attribute_Definition: Presence of certain trace elements in sediment geochemistry. Possible score of 1 depending on the measured values of Co, Ge, Ga, and Ag. See publication text for element cut offs. Scores for each trace element will be added together. Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 4 Attribute: Attribute_Label: ARDF_SCORE Attribute_Definition: Presence of ARDF record with relative possibility of being a Cu carbonate deposit Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: No ARDF locality with Cu carbonate evidence Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: ARDF model is uncertain but may be permissible for Cu carbonate Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 5 Enumerated_Domain_Value_Definition: ARDF locality has Cu carbonate potential or Cu carbonate present Attribute: Attribute_Label: MIN_SCORE (alias MINERAL_SCORE) Attribute_Definition: Presence of chalcopyrite, copper-cobalt-sulfides, copper sulphates, copper sulfide/copper oxide, azurite, cuprite, enargite, and malachite in the heavy mineral concentrate mineralogy. See publication text for point allocation. Scores will be added together. Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 8 Attribute: Attribute_Label: RCK_SCORE (alias ROCK_SCORE) Attribute_Definition: Presence of certain elements in rock geochemistry. Possible score of 1, 2, or 3, depending on the measured value of Cu. See publication text for element cut offs. Higher scores will replace lower scores. Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 3 Attribute: Attribute_Label: RCKTR_SCORE (alias ROCK_TRACE_SCORE) Attribute_Definition: Presence of certain trace elements in rock geochemistry. Possible score of 1 depending on the measured values of Co, Ge, Ag, and Ga. See publication text for element cut offs. Scores for each trace element will be added together. Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 4 Attribute: Attribute_Label: LITH_SCORE (alias LITHOLOGY_SCORE) Attribute_Definition: Presence of carbonate rock units on the state geologic map Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: A carbonate geologic unit on the state geologic map is not present Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: A carbonate rock as a minor component of a geologic unit on the state map is present Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: A carbonate rock as a major component of a geologic unit on the state map is present Attribute: Attribute_Label: TOTAL_SCORE Attribute_Definition: The sum of the individual scores (SED_SCORE, SEDTR_SCORE, ARDF_SCORE, MIN_SCORE, RCK_SCORE, RCKTR_SCORE, and LITH_SCORE). Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 20 Attribute: Attribute_Label: SED_PCT (alias SEDIMENT_PCT) Attribute_Definition: The percentage of SED_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: SEDTR_PCT (alias SEDIMENT_TRACT_PCT) Attribute_Definition: The percentage of SEDTR_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: ARDF_PCT Attribute_Definition: The percentage of ARDF_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: MIN_PCT (alias MINERAL_PCT) Attribute_Definition: The percentage of MIN_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: RCK_PCT (alias ROCK_PCT) Attribute_Definition: The percentage of RCK_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: RCKTR_PCT (alias ROCK_TRACT_PCT) Attribute_Definition: The percentage of RCKTR_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: LITH_PCT (alias LITHOLOGY_PCT) Attribute_Definition: The percentage of LITH_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: POTENTIAL Attribute_Definition: Relative description of estimated potential for PGE deposits in this HUC based on the scoring methodology for the Cu carabonate deposit model Attribute_Definition_Source: this data set Attribute_Domain_Values: Unrepresentable_Domain: Relative terms of LOW, MED, and HIGH. See this publication's text for complete description Attribute: Attribute_Label: CERTAINTY Attribute_Definition: Relative description of certainty of the estimated potential for PGE deposits in this HUC based on the scoring methodology for the Cu carbonate deposit model Attribute_Definition_Source: this data set Attribute_Domain_Values: Unrepresentable_Domain: Relative terms of LOW, MED, and HIGH. See this publication's text for complete description Attribute: Attribute_Label: SYMBOL Attribute_Definition: Concatenation of POTENTIAL and CERTAINTY used to symbolize the PGE scoring graphic. Attribute_Definition_Source: this data source Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,HIGH Enumerated_Domain_Value_Definition: dark red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,MED Enumerated_Domain_Value_Definition: medium red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,LOW Enumerated_Domain_Value_Definition: light red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,HIGH Enumerated_Domain_Value_Definition: dark yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,MED Enumerated_Domain_Value_Definition: medium yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,LOW Enumerated_Domain_Value_Definition: light yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,HIGH Enumerated_Domain_Value_Definition: dark green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,MED Enumerated_Domain_Value_Definition: medium green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,LOW Enumerated_Domain_Value_Definition: light green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: UNKNOWN Enumerated_Domain_Value_Definition: dark gray Detailed_Description: Entity_Type: Entity_Type_Label: SandU_HUCs Entity_Type_Definition: Geodatabase feature class showing mineral resource potential estimation for sandstone U (-V-Cu) deposits Entity_Type_Definition_Source: this data set Attribute: Attribute_Label: HUC12 Attribute_Definition: Field HUC12 contains the unique 12-digit hydrologic unit code identifying the sub-watershed area of the National Hydrography Dataset and Watershed Boundary Dataset. Attribute_Definition_Source: Watershed Boundary Dataset (WBD) of the Advisory Committee on Water Information (ACWI) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 190201010301 Range_Domain_Maximum: 190605021705 Attribute: Attribute_Label: SED_SCORE (alias SEDIMENT_SCORE) Attribute_Definition: Presence U (uranium) in sediment geochemistry Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: null Enumerated_Domain_Value_Definition: No sediment samples were collected in this HUC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: The highest value for U is not in the 75th percentile Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: The highest value for U is in the 75th percentile, but not in the 91st percentile Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: The highest value for U is in the 91st percentile, but not in the 98th percentile Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: The highest value for U is in the 98th percentile Attribute: Attribute_Label: ARDF_SCORE Attribute_Definition: Based on tables for ARDF and ARDF placer records. (See text.) Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: No ARDF locations. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Permissible geology but no direct evidence for PGEs Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: Chromite and favorable geology Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: PGEs reported as major or minor commodities Attribute: Attribute_Label: RCK_SCORE (alias ROCK_SCORE) Attribute_Definition: Presence of U in sedimentary rock geochemistry. Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: There are no U measurements in the 91st percentile Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: The highest value for U measures in the 91st percentile, but not the 98th percentile Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: The highest value for U measures in the 98th percentile Attribute: Attribute_Label: IGN_SCORE (alias IGNEOUS_SCORE) Attribute_Definition: Score for igneous rocks that have the displacement of Fe#, a Fe index, from an expected Fe# versus SiO2 array. See publication text for more detailed description Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: Fe_# displacement < 0 AND the 65% < SiO2 < 75% is not true Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Fe_# displacement < 0 AND the 65% < SiO2 < 75% Attribute: Attribute_Label: LITH_SCORE (alias LITHOLOGY_SCORE) Attribute_Definition: Presence of certain lithologies in rock units from the state geologic map. Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: Does not have rocks conduceive for hosting sandstone U deposits based on the state geologic map Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Unconsolidated rock unit that is within 3 km of a sandstone or similar type rock on the state map Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: Sandstone or similar lithology is a component of a rock unit on the state map Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: Sandstone or similar lithology is a component of a rock unit on the state map and has an Tertiary or Tertiary/Cretaceous age Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 4 Enumerated_Domain_Value_Definition: Arkose is a component of a geologic unit on the state map Attribute: Attribute_Label: COAL_SCORE Attribute_Definition: Presence of Upper Cretaceous or Tertiary coal as mapped in Alaska Division of Geological Surveys Special Report 37 Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: Upper Cretaceous or Tertiary coal is not present Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Upper Cretaceous or Tertiary coal is present Attribute: Attribute_Label: AERORAD_SCORE Attribute_Definition: Score for U value from aerorad data set Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: U value <= 2 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: 2 < U value <= 5 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: U value > 5 Attribute: Attribute_Label: TOTAL_SCORE Attribute_Definition: The sum of the individual scores (SED_SCORE, RCK_SCORE, IGN_SCORE, LITH_SCORE, COAL_SCORE, AERORAD_SCORE, and ARDF_SCORE). Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 14 Attribute: Attribute_Label: SED_PCT (alias SEDIMENT_PCT) Attribute_Definition: The percentage of SED_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: ARDF_PCT Attribute_Definition: The percentage of ARDF_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: RCK_PCT (alias ROCK_PCT) Attribute_Definition: The percentage of RCK_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: IGN_PCT (alias IGNEOUS_PCT) Attribute_Definition: The percentage of IGN_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: LITH_PCT (alias LITHOLOGY_PCT) Attribute_Definition: The percentage of LITH_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: COAL_PCT Attribute_Definition: The percentage of COAL_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: AERORAD_PCT Attribute_Definition: The percentage of AERORAD_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: POTENTIAL Attribute_Definition: Relative description of estimated potential of sandstone U in this HUC based on the scoring methodology for the sandstone U deposit model Attribute_Definition_Source: this data set Attribute_Domain_Values: Unrepresentable_Domain: Relative terms of LOW, MED, and HIGH. See this publication's text for complete description Attribute: Attribute_Label: CERTAINTY Attribute_Definition: Relative description of certainty of the estimated potential of sandstone U in this HUC based on the scoring methodology for the sandstone U deposit model Attribute_Definition_Source: this data set Attribute_Domain_Values: Unrepresentable_Domain: Relative terms of LOW, MED, and HIGH. See this publication's text for complete description Attribute: Attribute_Label: SYMBOL Attribute_Definition: Concatenation of POTENTIAL and CERTAINTY used to symbolize the sandstone U scoring graphic. Attribute_Definition_Source: this data source Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,HIGH Enumerated_Domain_Value_Definition: dark red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,MED Enumerated_Domain_Value_Definition: medium red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,LOW Enumerated_Domain_Value_Definition: light red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,HIGH Enumerated_Domain_Value_Definition: dark yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,MED Enumerated_Domain_Value_Definition: medium yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,LOW Enumerated_Domain_Value_Definition: light yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,HIGH Enumerated_Domain_Value_Definition: dark green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,MED Enumerated_Domain_Value_Definition: medium green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,LOW Enumerated_Domain_Value_Definition: light green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: UNKNOWN Enumerated_Domain_Value_Definition: dark gray Detailed_Description: Entity_Type: Entity_Type_Label: SnGranite_HUCs Entity_Type_Definition: Geodatabase feature class showing mineral resource potential estimation for Sn-W-Mo (-Ta-In-fluorspar) deposits in specialized granites Entity_Type_Definition_Source: this data set Attribute: Attribute_Label: HUC12 Attribute_Definition: Field HUC12 contains the unique 12-digit hydrologic unit code identifying the sub-watershed area of the National Hydrography Dataset and Watershed Boundary Dataset. Attribute_Definition_Source: Watershed Boundary Dataset (WBD) of the Advisory Committee on Water Information (ACWI) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 190201010301 Range_Domain_Maximum: 190605021705 Attribute: Attribute_Label: SED_SCORE (alias SEDIMENT_SCORE) Attribute_Definition: Score for measures of In, Mo, Sn, Ta, and W in sediment geochemistry. Two points given if the highest analysis is in the 98th percentile, one point if in the 91st percentile. A maximum of 2 points for a single element in a HUC. The points for the individual elements is additive, for a maximum of 10 points per HUC. Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 10 Attribute: Attribute_Label: ARDF_SCORE Attribute_Definition: Scoring for the ARDF keyword search Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: keyword search TOTAL < 4 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: 4 <= TOTAL < 20 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: keyword search TOTAL >= 20 Attribute: Attribute_Label: RCK_SCORE (alias ROCK_SCORE) Attribute_Definition: Presence of In, Mo, Sn, Ta, or W in the 91st percentile in igneous rock geochemistry. Points are additive. Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 7 Attribute: Attribute_Label: IGN_SCORE (alias IGNEOUS_SCORE) Attribute_Definition: Scores from igneous indices, for samples with SiO2 > 65% and either ASI (aluminum saturation index) > 1 or 10000*Ga/Al (gallium over aluminum) > 2.6, then 1 point is given. Points are additive for a maximum of 2 points. Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 2 Attribute: Attribute_Label: AERORAD_SCORE Attribute_Definition: Score for Th (thorium) value from the aerorad data set Attribute_Definition_Source: this data set Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: Th value < 6 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Th value >= 6 Attribute: Attribute_Label: TOTAL_SCORE Attribute_Definition: The sum of the individual scores (IGN_SCORE, RCK_SCORE, SED_SCORE, ARDF_SCORE, and AERORAD_SCORE). Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 14 Attribute: Attribute_Label: SED_PCT (alias SEDIMENT_PCT) Attribute_Definition: The percentage of SED_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: ARDF_PCT Attribute_Definition: The percentage of ARDF_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: RCK_PCT (alias ROCK_SCORE) Attribute_Definition: The percentage of RCK_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: IGN_PCT (alias IGNEOUS_SCORE) Attribute_Definition: The percentage of IGN_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: AERORAD_PCT Attribute_Definition: The percentage of AERORAD_SCORE of the TOTAL_SCORE Attribute_Definition_Source: this data set Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute: Attribute_Label: POTENTIAL Attribute_Definition: Relative description of estimated potential of Sn-W-Mo in specialized granites in this HUC based on the scoring methodology for the Sn-W-Mo in specialized granites Attribute_Definition_Source: this data set Attribute_Domain_Values: Unrepresentable_Domain: Relative terms of LOW, MED, and HIGH. See this publication's text for complete description Attribute: Attribute_Label: CERTAINTY Attribute_Definition: Relative description of certainty of the estimated potential of Sn-W-Mo in specialized granites in this HUC based on the scoring methodology for the Sn-W-Mo in specialized granites Attribute_Definition_Source: this data set Attribute_Domain_Values: Unrepresentable_Domain: Relative terms of LOW, MED, and HIGH. See this publication's text for complete description Attribute: Attribute_Label: SYMBOL Attribute_Definition: Concatenation of POTENTIAL and CERTAINTY used to symbolize the Sn-W-Mo specialized granite scoring graphic. Attribute_Definition_Source: this data source Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,HIGH Enumerated_Domain_Value_Definition: dark red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,MED Enumerated_Domain_Value_Definition: medium red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: HIGH,LOW Enumerated_Domain_Value_Definition: light red color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,HIGH Enumerated_Domain_Value_Definition: dark yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,MED Enumerated_Domain_Value_Definition: medium yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MED,LOW Enumerated_Domain_Value_Definition: light yellow color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,HIGH Enumerated_Domain_Value_Definition: dark green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,MED Enumerated_Domain_Value_Definition: medium green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: LOW,LOW Enumerated_Domain_Value_Definition: light green color Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: UNKNOWN Enumerated_Domain_Value_Definition: dark gray Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: MS902 Box 25286 Denver Federal Center City: Lakewood State_or_Province: CO Postal_Code: 80225 Country: U.S.A. Contact_Voice_Telephone: 1-888-ASK-USGS Resource_Description: OFR 2015-1021 Distribution_Liability: This publication was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Arc geodatabase and shapefiles Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2015/1021 Fees: none Metadata_Reference_Information: Metadata_Date: 20150202 Metadata_Review_Date: 20150202 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Nora Shew Contact_Address: Address_Type: mailing Address: 4210 University Drive City: Anchorage State_or_Province: AK Postal_Code: 99508 Country: U.S.A. Contact_Voice_Telephone: 907-786-7445 Contact_Electronic_Mail_Address: nshew@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998