U.S. Geological Survey Data Series 454 Geochemical Database for the Boulder Batholith and its Satellitic Plutons, Southwest Montana By Edward A. du Bray, Karen Lund, Robert I. Tilling, Paul D. Denning, and Ed DeWitt U.S. Department of the Interior KEN SALAZAR, Secretary U.S. Geological Survey Suzette M. Kimball, Acting Director For more information about the geochemistry and modal composition of the Boulder batholith and its satellitic intrusions in southwest Montana, please contact: Edward A. du Bray U.S. Geological Survey Box 25046, Mail Stop 973 Denver Federal Center Lakewood, CO 80225-0046 303-236-5591 edubray@usgs.gov I. Introduction 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. This product contains Portable Document Format (.pdf) files, which require Adobe Acrobat for viewing. II. DISCLAIMERS 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. III. SYSTEM REQUIREMENTS Minimum System Requirements Windows-based computer: Intel Pentium processor computer (486 minimum, Pentium or Pentium Pro recommended), with Microsoft Windows XP, Windows 2000, Windows NT 4.0 with Service Pack 5 or later Windows 98 Second Edition, or Windows 95 Service Release 2 (OSR2); 64 MB of RAM. Macintosh computer: Power PC processor; Mac OS 8.6 or later; 64 MB of RAM. IV. INSTRUCTIONS AND DOCUMENTATION FOR U.S. GEOLOGICAL SURVEY DATA SERIES 454 A. To access the data: Software Required: Adobe Acrobat Reader 7 ArcGIS 9.3 or later Microsoft Excel This publication contains data files and ArcGIS 9.x project files needed to display a shape file showing the intrusions of the Boulder batholith, Montana. The map can be viewed by opening: map_layout.mxd using ArcGIS 9.3 or higher. B. Contents: The downloads directory (DS454) contains the following files and folders: 00ReadMeFirst.txt -- This file is a text document. DATABASE folder: ButteChem.txt ButteChem.xls GIS folder: 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. Metadata.txt -- Metadata file for Geochemical Database for the Boulder Batholith and its Satellitic Plutons, Southwest Montana -- U.S. Geological Survey Data Series 454. butte_chemical_locations Butte_Chem_Loc.dbf Butte_Chem_Loc.lyr Butte_Chem_Loc.prj Butte_Chem_Loc.sbn Butte_Chem_Loc.sbx Butte_Chem_Loc.shp Butte_Chem_Loc.shp.xml Butte_Chem_Loc.shx drg_base drg_base.aux drg_base.tif drg_base.tif.vat.dbf drg_base.tif.xml geo_polys geo_polys.dbf geo_polys.lyr geo_polys.prj geo_polys.sbn geo_polys.sbx geo_polys.shp geo_polys.shp.xml geo_polys.shx map_extent map_extent.dbf map_extent.prj map_extent.sbn map_extent.sbx map_extent.shp map_extent.shp.xml map_extent.shx structure Structure.dbf Structure.lyr Structure.prj Structure.sbn Structure.sbx Structure.shp Structure.shp.xml Structure.shx PDF folder: DS454_Plate.pdf DS454.pdf