Metadata: Identification_Information: 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 Online_Linkage: http://ardf.wr.usgs.gov/ Online_Linkage: https://mrdata.usgs.gov/ardf/ Description: Abstract: Database of descriptions of mines, prospects, and mineral occurrences in Alaska. Purpose: The Alaska Resource Data File (ARDF) is a subset of the National Mineral Resource Data System (MRDS) that has been specifically re-formatted and re-designed to better meet the needs of the local user community. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1988 Ending_Date: Present Currentness_Reference: publication date Status: Progress: In work Maintenance_and_Update_Frequency: Continually Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: 172 East_Bounding_Coordinate: -130 North_Bounding_Coordinate: 72 South_Bounding_Coordinate: 52.0 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Alexandria Digital Library Feature Type Thesaurus Theme_Keyword: mine sites Theme: Theme_Keyword_Thesaurus: General glossary for mineral resources spatial data Theme_Keyword: columnar text Theme_Keyword: DBF Theme_Keyword: HTML table Theme_Keyword: KML Theme_Keyword: OGC WFS Theme_Keyword: OGC WMS Theme_Keyword: shapefile Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: economic geology Theme_Keyword: geospatial datasets Theme_Keyword: mineral resources Theme_Keyword: natural resource exploration Theme_Keyword: natural resource extraction Place: Place_Keyword_Thesaurus: Common geographic areas Place_Keyword: fUS02 = Alaska Access_Constraints: None Use_Constraints: None Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Mineral Resources Program, Western Region - Alaska Section Contact_Person: Frederic H. Wilson Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 4200 University Drive City: Anchorage State_or_Province: AK Postal_Code: 99508-4667 Country: USA Contact_Voice_Telephone: 907-786-7448 Contact_Electronic_Mail_Address: fwilson@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://mrdata.usgs.gov/ardf/ardf.png Browse_Graphic_File_Description: Distribution of ARDF records in Alaska (geographic image, no projection). 1280x1024 pixels, 1.1 megabytes. Browse_Graphic_File_Type: PNG Native_Data_Set_Environment: FileMaker Pro 3-7 for Windows Cross_Reference: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2005 Title: Mineral Resources Data System Edition: 20050309 Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Online_Linkage: https://mrdata.usgs.gov/mrds/ Data_Quality_Information: Logical_Consistency_Report: A site is a single geographic location, point or area, which may have had multiple site names. For historical perspective, all proper names are listed. Completeness_Report: ARDF is mainly concerned with the metallic commodities. Common industrial minerals such as sand and gravel, crushed stone, and limestone are not included, nor are energy minerals such as peat, coal, and oil and gas. Uranium and thorium, and rare earth elements are included, as well as high unit-value industrial minerals as barite, jade, graphite, and gypsum. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The location of a site is given in decimal degrees. Some sites are areas rather than points and the geographic coordinates are the approximate center of the area. The precision of the latitude and longitude is reflected in the number of decimal places given. A narrative description of the location and the precision of the location is given in the text field 'Location description and accuracy'. Lineage: Process_Step: Process_Description: The original ARDF records came from the national database MRDS. The ARDF records are being updated from information of government, industry, and literature sources. The updated ARDF records are fed back to the national MRDS database. Downloaded Filemaker Pro database file (ARDFcomp.fp5) on 05/04/2005 from ARDF website: http://ardf.wr.usgs.gov/digital.html. Imported ARDFcomp.fp5 into Filemaker Pro 6.0 and exported all records as a DBF file. Left out the following 5 fields because field length record exceeded 255 characters: Location, Geologic Description, Workings/exploration, Additional Comments, References. Imported DBF file into ArcView 3.2 and created shapefile: ardf05042005b.shp Process_Date: 2005-04-05 Process_Step: Process_Description: Downloaded ardfcomp.CSV from http://ardf.wr.usgs.gov/ Removed a few duplicate rows in this file. Converted for use in Mineral Resources On-Line Spatial Data web site. Modified nonprintable characters 0x82 to eacute (0xe9), removed nonprintable characters 0x0B, removed excess spaces and tab characters. Process_Date: 2008-11-13 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.01 Longitude_Resolution: 0.01 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: ardf.dbf Entity_Type_Definition: Descriptions of mines, prospects, and mineral occurrences in Alaska. Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: site Attribute_Definition: Site names. The name or names of the mine, prospect or mineral occurrence as it is referred to in the literature. If more than one name has been used, the primary name is the one in most common usage and is listed first. Textual values of no more than 314 characters. Attribute: Attribute_Label: district Attribute_Definition: District. Name of the general area in which the site is located. Textual values of no more than 33 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 14 records have no value for district. Attribute: Attribute_Label: comm_main Attribute_Definition: Main commodities. Dominant elements or commodities of real or potential economic value in the site. For some deposits, the list of commodities is only a list of elements identified in a sample or samples and does not necessarily indicate the commodities that ultimately will prove valuable. Textual values of no more than 86 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 42 records have no value for comm_main. Attribute: Attribute_Label: quad_250 Attribute_Definition: Quadrangle map, 1:250,000-scale. USGS topographic maps on which the site is located. The first two letters are a code for the 1:250,000-scale quadrangle. Textual values of no more than 8 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 1 records have no value for quad_250. 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Enumerated_Domain_Value_Definition: Valdez Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: WA Enumerated_Domain_Value_Definition: Wainwright Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: WI Enumerated_Domain_Value_Definition: Wiseman Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: YA Enumerated_Domain_Value_Definition: Yakutat Attribute: Attribute_Label: quad_63360 Attribute_Definition: Quadrangle map, 1:63,360-scale. USGS topographic maps on which the site is located. Maps are identified in two parts, a two-letter code for the 1:250,000-scale quadrangle followed by the letter, hyphen, and number(s) used to designate the 1:63,360-scale map sheet. following USGS. Textual values of no more than 13 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 77 records have no value for quad_63360. Attribute: Attribute_Label: latitude Attribute_Definition: Latitude. Location of the site in decimal degrees. Some sites cover large areas and the location given is a point at the approximate center of the area. Real numbers stored in double precision. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 51.6 Range_Domain_Maximum: 69.63 Attribute_Units_of_Measure: Attribute: Attribute_Label: longitude Attribute_Definition: Geographic longitude. Location of the site in decimal degrees. Some sites cover large areas and the location given is a point at the approximate center of the area. Real numbers stored in double precision. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -178.8 Range_Domain_Maximum: -130.016 Attribute_Units_of_Measure: Attribute: Attribute_Label: location Attribute_Definition: Location and accuracy. A narrative description of the location of the site and its areal extent, which should also include information on the reliability of the location. Textual values of no more than 1418 characters. Attribute: Attribute_Label: comm_other Attribute_Definition: Other commodities. Other commodities present in minor amounts as determined by analysis or mineralogical determination. For some deposits, the list of commodities is only a list of elements identified in a sample or samples and does not necessarily indicate the commodities. Textual values of no more than 48 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 3842 records have no value for comm_other. Attribute: Attribute_Label: ore Attribute_Definition: Ore minerals. A list of the minerals in the site, usually metallic, which are of potential economic value. Textual values of no more than 368 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 726 records have no value for ore. Attribute: Attribute_Label: gangue Attribute_Definition: Gangue minerals. A list of the non-economic minerals in the site that cannot be avoided in mining but are separated during concentration. Textual values of no more than 220 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 3530 records have no value for gangue. Attribute: Attribute_Label: site_type Attribute_Definition: Site type. The sites described in this database are separated into mines, prospects, and mineral occurrences. In general, mines have past production, prospects have had some development work, and mineral occurrences include unexplored or incompletely explored oc. Textual values of no more than 17 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 5 records have no value for site_type. Attribute: Attribute_Label: status Attribute_Definition: Site status. Inactive or active. An active designation indicates recent work at the time of record entry or update. The determination of this status is not to be construed to reflect the legal status of the site, but rather indicates the appearance of exploration. Textual values of no more than 26 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 66 records have no value for status. Attribute: Attribute_Label: production Attribute_Definition: Indication of production. Restricted to "yes", "no", or undetermined ("undet."). "Yes" may be qualified as small, medium, or large. Textual values of no more than 16 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 87 records have no value for production. Attribute: Attribute_Label: dep_model Attribute_Definition: Mineral deposit model. One or more named descriptive or genetic mineral deposit models listed in Cox and Singer (1986), Bliss (1992), or other indicated references. The models shown are those that appeared most appropriate to the compilers of the site record. Textual values of no more than 617 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 812 records have no value for dep_model. Attribute: Attribute_Label: geol_desc Attribute_Definition: Geologic description. Local geology and character of the deposit including, where possible, the host rock, structure of the host and mineralized system, mineralogical relations, and the shape and form of the deposit. Textual values of no more than 8693 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 3 records have no value for geol_desc. Attribute: Attribute_Label: work_expl Attribute_Definition: Workings or exploration. A description of the mining or exploration efforts to evaluate a mine or prospect. For mineral occurrences, this field would normally include the work done or the evidence to suggest mineral potential. Textual values of no more than 6459 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 679 records have no value for work_expl. Attribute: Attribute_Label: comments Attribute_Definition: Additional comments. Pertinent information not appropriate for other fields in the description. Textual values of no more than 1660 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 4319 records have no value for comments. Attribute: Attribute_Label: reference Attribute_Definition: References. List of known references that discuss the occurrence or are applicable to its description. Textual values of no more than 1372 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 14 records have no value for reference. Attribute: Attribute_Label: ARDF_num Attribute_Definition: ARDF Number. Unique label assigned to each site. First two letters comprise the quadrangle code, followed by a three digit number. Textual values of no more than 11 characters. Attribute: Attribute_Label: rept_names Attribute_Definition: Reporters. Names of people responsible for completion of the record. Textual values of no more than 134 characters. Attribute: Attribute_Label: rept_date Attribute_Definition: Last report date. Date of record entry or last update. Textual values of no more than 16 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 3 records have no value for rept_date. Attribute: Attribute_Label: MRDS_num Attribute_Definition: MRDS Number. Unique identifier for the record as it appeared in the Mineral Resources Data System (MRDS). Textual values of no more than 61 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 3183 records have no value for MRDS_num. Attribute: Attribute_Label: age Attribute_Definition: Age of mineralization. The age of mineralization and an explanation of the evidence for the age, if warranted. Textual values of no more than 1323 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 1546 records have no value for age. Attribute: Attribute_Label: rept_aff Attribute_Definition: Reporter affiliation. Institutional affiliation of the reporter providing the information about the site. Textual values of no more than 53 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 5197 records have no value for rept_aff. Attribute: Attribute_Label: model_code Attribute_Definition: Mineral deposit model number. Unique identifier for the mineral deposit model, from Cox and Singer (1986) or Bliss (1992). Textual values of no more than 68 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 2071 records have no value for model_code. Attribute: Attribute_Label: alteration Attribute_Definition: Alteration of deposit. Description of alteration of the deposit. Textual values of no more than 1594 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 4254 records have no value for alteration. Attribute: Attribute_Label: prod_notes Attribute_Definition: Production notes. More extensive (and variable) information about production at the site, if known. Textual values of no more than 3488 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 5435 records have no value for prod_notes. Attribute: Attribute_Label: reserves Attribute_Definition: Reserve estimates. Reserve figures and references to their source. This field may include estimates based on a variety of assumptions at various times; this can result in conflicting assessments of reserves. This field may also include resource estimates based on probab. Textual values of no more than 1661 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 5990 records have no value for reserves. Attribute: Attribute_Label: prime_ref Attribute_Definition: Primary reference. The best reference describing the occurrence, although it may be far from a complete description. Textual values of no more than 193 characters. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 42 records have no value for prime_ref. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Mineral Resources Program, Western Region - Alaska Section Contact_Person: Frederic H. Wilson Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 4200 University Drive City: Anchorage State_or_Province: AK Postal_Code: 99508-4667 Country: USA Contact_Voice_Telephone: 907-786-7448 Contact_Electronic_Mail_Address: fwilson@usgs.gov Distribution_Liability: The distributor assumes no liability. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: CSV Format_Information_Content: ARDF mineral resource records File_Decompression_Technique: not compressed Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://ardf.wr.usgs.gov/ardf_data/ardfcomp.CSV Digital_Form: Digital_Transfer_Information: Format_Name: Shapefile Format_Version_Number: 1.0 Format_Information_Content: ARDF mineral resource records truncated to fit in the 255-character limit of DBF File_Decompression_Technique: unzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://mrdata.usgs.gov/ardf/ardf.zip Digital_Form: Digital_Transfer_Information: Format_Name: OGC WMS Format_Version_Number: 1.3.0 Format_Information_Content: Locations and descriptions of mines, prospects, and occurrences Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://mrdata.usgs.gov/services/ardf?request=getcapabilities&service=WMS&version=1.3.0& Digital_Form: Digital_Transfer_Information: Format_Name: OGC WFS Format_Version_Number: 1.0.0 Format_Information_Content: Locations and descriptions of mines, prospects, and occurrences Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://mrdata.usgs.gov/wfs/ardf?request=getcapabilities&service=WFS&version=1.0.0& Fees: none Metadata_Reference_Information: Metadata_Date: 20161207 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Mineral Resources Program, Western Region - Alaska Section Contact_Person: Nora Shew Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 4200 University Drive City: Anchorage State_or_Province: AK Postal_Code: 99508-4667 Country: USA Contact_Voice_Telephone: 907-786-7445 Contact_Electronic_Mail_Address: nshew@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998