Identification_Information: Citation: Citation_Information: Originator: Edward A. du Bray Originator: Karen Lund Originator: Robert I. Tilling Originator: Paul D. Denning Originator: Ed DeWitt Publication_Date: 2009 Title: Geochemical database for the Boulder batholith and its satellitic plutons, southwest Montana Edition: Version 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Data Series Issue_Identification: 454 Publication_Information: Publication_Place: Denver, Colorado, U.S.A. Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/ds/454 Description: Abstract: Geochemical data presented in this report pertain to Cretaceous igneous intrusions of the Boulder batholith and its satellitic plutons in southwest Montana. The geographic area addressed in this compilation is approximately bounded by latitudes 45.6 and 46.7 degrees North and longitudes 112.75 and 111.5 degrees West. These data were compiled in order to establish the geologic framework for world-class mineral deposits of the Butte district. Although these deposits and their host rocks have been the subject of many investigations, the petrologic characteristics of associated intrusive rocks have not been systematically compiled, synthesized, or interpreted. Abundant late Mesozoic intrusions in the study area are probably byproducts of subduction-related processes, including back-arc magmatism that prevailed along the west edge of the North American plate during this interval. The ultimate goal of this effort will be an evaluation of the time-space-compositional evolution of Mesozoic magmatism associated with the Boulder batholith and identification of genetic associations between magmatic and mineralizing processes in this region. Purpose: This product is a compilation of geochemical information for intrusions of the Boulder batholith and is intended to aid in the study of the geology and metallogenesis of the region. Supplemental_Information: Shape files included in this geospatial database: Butte_Chem_Loc: point layer of geochemical data geo_polys: polygon layer of geologic units map_extent: line layer of map extent (neatline) structure: line layer of geologic structures Other files included in this geospatial database: geojoin_mtbath.xls: An Excel spreadsheet containing all of the geologic unit explanations and descriptions. map_layout.mxd: The ArcGIS project file that accesses all of the data layers used to display the map using ArcMap software. drg_base: base 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: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -112.780228 East_Bounding_Coordinate: -111.490425 North_Bounding_Coordinate: 46.707164 South_Bounding_Coordinate: 45.612552 Keywords: Theme: Theme_Keyword_Thesaurus: American Geological Institute Glossary of Geology Theme_Keyword: Boulder batholith Theme_Keyword: Geochemistry Theme_Keyword: Modal composition Theme_Keyword: Satellitic intrusions Place: Place_Keyword_Thesaurus: U.S. Board of Geographic Names (BGN) Geographic Names Information System (GNIS) Place_Keyword: Southwest Montana Place_Keyword: Montana Temporal: Temporal_Keyword_Thesaurus: American Geological Institute Glossary of Geology Temporal_Keyword: upper Miocene Temporal_Keyword: lower Pliocene Temporal_Keyword: upper Eocene Temporal_Keyword: lower Oligocene Temporal_Keyword: middle Eocene Temporal_Keyword: Quaternary Temporal_Keyword: Paleocene Temporal_Keyword: Cretaceous Temporal_Keyword: Upper Cretaceous Temporal_Keyword: Mesozoic Temporal_Keyword: Paleozoic Temporal_Keyword: Proterozoic Temporal_Keyword: Archean Access_Constraints: None Use_Constraints: Request acknowledgement of the U.S. Geological Survey in any products derived from these data. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Ed du Bray Contact_Organization: USGS Contact_Address: Address_Type: mailing and physical address Address: Box 25046, MS 973 Address: Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225 Country: U.S.A. Contact_Voice_Telephone: 303-236-5591 Contact_Facsimile_Telephone: 303-236-3200 Contact_Electronic_Mail_Address: edubray@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/ds/454/downloads/DS454_Plate.pdf Browse_Graphic_File_Description: Graphic representation of map layout Browse_Graphic_File_Type: PDF Data_Set_Credit: Paul D. Denning prepared the GIS database Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.3.1.1850 Data_Quality_Information: Logical_Consistency_Report: Map elements were visually checked for overshoots, undershoots, duplicate features, polygon closure, and other errors by the author and by the GIS technician that created the digital database. Automated routines were also used to check the databases for polygon label errors, line or point attribution errors, sliver polygons, dangling arcs, intersection errors, and projection information. Check plots of the map were reviewed by for consistency with basic geologic principles and general conformity to USGS mapping standards. Completeness_Report: Data are complete. All geospatial database elements are attributed. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Harry W. Smedes Originator: Montis R. Klepper Originator: Robert I. Tilling Title: Preliminary map of plutonic units of the Boulder batholith, southwestern Montana Publication_Date: 1988 Series_Information: Series_Name: Open-File Report Issue_Identification: 88-283 Publication_Information: Publication_Place: Reston, Virginia Publisher: United States Geological Survey Source_Scale_Denominator: 200,000 Type_of_Source_Media: map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1988 Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: Smedes and others (1988) Source_Contribution: Geology Process_Step: Process_Description: Paul Denning scanned the original, stable-base copy of the 1988 geologic map (Smedes and others, 1988) and exported the resulting data to ArcMap where polygons were cleaned up and attributed. The resulting digital geologic map is intended to be a faithful representation of the original map. The ArcMap data were exported to Adobe Illustrator to create the PDF version of the geologic map. Locations for all samples for which geochemical data were compiled were added to the PDF version of the geologic map by Ed du Bray. More details of the geochemical data compilation process are provided in the accompanying text, DS454.pdf Process_Date: 2008-2009 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Paul Denning Contact_Organization: USGS Contact_Address: Address_Type: mailing and physical address Address: Box 25046, MS 973 Address: Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225 Country: U.S.A. Contact_Voice_Telephone: 303-236-1222 Contact_Facsimile_Telephone: 303-236-3200 Contact_Electronic_Mail_Address: pdenning@usgs.gov Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 12 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -111.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.001024 Ordinate_Resolution: 0.001024 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.400000000400000000 Denominator_of_Flattening_Ratio: 294.97869820 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Butte_Chem_Loc Entity_Type_Definition: Geochemical information for intrusions of the Boulder batholith Entity_Type_Definition_Source: Ed du Bray Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated Detailed_Description: Entity_Type: Entity_Type_Label: geo_polys Entity_Type_Definition: Toplogically correct geologic unit coded polyons representing the plutonic units of the Boulder batholith, southwestern Montana (Smedes and others, 1988) Entity_Type_Definition_Source: Ed du Bray Detailed_Description: Entity_Type: Entity_Type_Label: map_extent Entity_Type_Definition: Map extent (neatline) created as a bounding polygon for the map data elements Entity_Type_Definition_Source: Paul Denning Detailed_Description: Entity_Type: Entity_Type_Label: Structure Entity_Type_Definition: Structural elements within the map extent Entity_Type_Definition_Source: Ed du Bray Overview_Description: Entity_and_Attribute_Overview: Detailed description of attribute values is provided in the accompanying text, DS454.pdf Entity_and_Attribute_Detail_Citation: Detailed description of attribute values is provided in the accompanying text, DS454.pdf Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: Denver Publishing Service Center USGS - Denver Federal Center MS 902, Box 25046 City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: U.S.A. Contact_Voice_Telephone: 303-236-5405 Resource_Description: DS 454 Distribution_Liability: This database, identified as DS454, has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Shapefile Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/ds/454/ Fees: None Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: USGS Information Services Box 25286 City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: U.S.A. Contact_Voice_Telephone: 1-888-ASK-USGS Resource_Description: Data Series 454 Distribution_Liability: None Standard_Order_Process: Non-digital_Form: Available as one CD-ROM. Order from USGS at the address listed above or see http://rmmcweb.cr.usgs.gov/public/mod/order.html for more ordering information Fees: For current charges please see http://rmmcweb.cr.usgs.gov/public/mod/order.html Metadata_Reference_Information: Metadata_Date: 20090622 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Paul Denning Contact_Organization: USGS Contact_Address: Address_Type: mailing and physical address Address: U.S. Geological Survey Central Region Mineral Resources Team Denver Federal Center, Box 25046, MS-973 City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: U.S.A. Contact_Voice_Telephone: 303-236-1222 Contact_Facsimile_Telephone: 303-236-3200 Contact_Electronic_Mail_Address: pdenning@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998