readme.txt Geologic map of the Patagonia Mountains, Santa Cruz County, Arizona By Frederick T. Graybeal, Lorre A. Moyer, Peter G. Vikre, Pamela Dunlap, and John C. Wallis 2015 Open-File Report 2015-1023, version 1.0 U.S. Department of the Interior, Sally Jewell, Secretary U.S. Geological Survey, Suzette Kimball, Acting Director Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. INTRODUCTION The Patagonia Mountains are located 90 km south of Tucson, Arizona, and extend 23 km south from the town of Patagonia, Arizona, into Sonora, Mexico. The geology of the Patagonia Mountains and their deposits of metallic minerals are described in numerous published and unpublished reports with geologic maps at various scales. North of the international border, the Patagonia Mountains contain many Cu-Pb-Zn-Ag-Mn replacement and vein deposits, two Cu-Mo breccia deposits, and two porphyry Cu-Mo systems. Spatial databases for map units, strike and dip, geologic contacts, faults, dikes, in addition to a topographic base map are provided in an Esri file geodatabase. REVISIONS AND UPDATES No plans exist to revise and update these data. FILE AND DATA FORMATS Text (.txt) files may be viewed without special software. Adobe Portable Document format (PDF) files may be viewed with ArcReader (available at no cost at www.adobe.com). Spatial databases require GIS software such as ArcReader, ArcView, ArcInfo, or ArcGIS; the spatial data files can be directly accessed by these applications. ArcView, ArcInfo, and ArcGIS are licensed applications that must be purchased. The spatial databases are Esri File Geodatabase (FGDB) feature classes compiled in ArcGIS (version 10), a commercial GIS. The data are stored in projected map coordinates (UTM, zone 12) with the datum NAD_1927. FGDC-compliant metadata are embedded in each of the spatial databases and also provided in PDF format. FILES TO DOWNLOAD readme.txt - this file ofr2015-1023_pamphlet.pdf - Map pamphlet ofr2015-1023_map.pdf - Map sheet GIS_PatagoniaMtns.zip - Esri File Geodatabase, ArcMap map document, and metadata in compressed (ZIP) archive. The file geodatabase is a geospatial database that is directly accessible via Esri ArcGIS software such as ArcMap or ArcView. [The database files are stored in a proprietary format and contain the geospatial data, various indexes, user-defined attributes, the coordinate system information, and the metadata which describes the data.] All files will extract into a main folder named GIS_PatagoniaMtns. GIS IN THE ZIP ARCHIVE PatagoniaMtns.gdb - An ArcGIS 10 Esri File Geodatabase (FGDB) that contains five feature classes (stored in a feature dataset) and a topographic basemap Contents of PatagoniaMtns.gdb Geology - Feature dataset that contains spatial data for geology PatMtns_GeoLines - Feature class (lines) for contacts, faults, dikes, and very thin geologic map units PatMtns_GeoUnits - Feature class (polygons) for map units PatMtns_pyrite - Feature class (polygons) for pyrite zones PatMtns_shear - Feature class (polygons) for shear zones PatMtns_StrikeDip - Feature class (points) for strike and dip of planar geologic structures TopoMap - Georectified mosaicked image (raster) of historic USGS 1:62,500-scale topographic maps used for a base map for the geologic map PatagoniaMtns_Arizona.mxd - ArcMap map document built in ArcGIS 10. It utilizes FGDB feature classes and layer files to symbolize and view the spatial and non-spatial data. The map document uses relative pathnames to the data sources; it will not display customized map symbols and polygon fill colors if the file geodatabase is separated from its relative position in the main folder \GIS_PatagoniaMtns with respect to the layer files in the subfolder \Symbolization_LYR_files. Layer Files - Customized symbolization files for feature classes are located in the subfolder \Symbolization_LYR_files) Contacts, faults, folds, and Linear Units.lyr - Symbolization for the feature class "PatMtns_GeoLines" Map units.lyr - Symbolization for the feature class "PatMtns_GeolUnits" Pyrite zones.lyr - Symboliztion files for the feature class "PatMtns_pyrite" Shear zones.lyr - Symboliztion files for the feature class "PatMtns_shear" Strike and Dip.lyr - Symbolization for the feature class "PatMtns_StrikeDip" METADATA FILES IN ZIP ARCHIVE GIS_PatagoniaMtns.zip (standalone files are located in subfolder \Metadata) PatMtns_GeoLines_metadata.pdf - Metadata for "PatMtns_GeoLines" PatMtns_GeoUnits_metadata.pdf - Metadata for "PatMtns_GeoUnits" PatMtns_pyrite_metadata.pdf - Metadata for "PatMtns_pyrite" PatMtns_shear_metadata.pdf - Metadata for "PatMtns_shear" PatMtns_StrikeDip_metadata.pdf - Metadata for "PatMtns_StrikeDip" PatMtns_TopoMap_metadata.pdf - Metadata for raster dataset "TopoMap" SYSTEM REQUIREMENTS Windows - Intel Pentium or Xeon processor, 800 MHz minimum, 1.0GHz or higher recommended - Microsoft Windows XP, or Windows 2000, - 256 MB minimum of RAM, 512 MB or higher recommended - VGA color monitor that can display 256 colors (16.7 million colors recommended) All platforms - Web browser such as Microsoft Internet Explorer, Netscape Browser version 7.0 or greater. Adobe Acrobat Reader 6.0 or higher. GIS software capable of reading ArcGIS 10 file geodatabases, such as ArcView or ArcGIS, is needed to take full advantage of the GIS component of this publication. Special fonts - The FGDCGeoAge fonts are necessary to view geologic symbols for Precambrian, Cambrian, Pennsylvanian, and Triassic map units in the GIS. They can be downloaded from the FGDC Carto Standards website (http://pubs.usgs.gov/tm/2006/11A02/) -- scroll down to Section 32, where you'll find links to the fonts, along with a keyboard map and some installation instructions QUICK START FOR GIS 1. Extract the data files from the ZIP archive into the folder of your choice; a main folder named GIS_PatagoniaMtns contains all the data. 2. Navigate to the folder \GIS_PatagoniaMtns and double-click on the map document file "PatagoniaMtns_Arizona.mxd" to view the GIS in ArcMap 10. 3. Right-click on a feature class in ArcMap's Table of Contents and select "Open Attribute Table" to view the data in a tabular format. TIPS 1. If you cannot view the complete embedded metadata in ArcCatalog (ver. 10) please visit the Esri website at http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//003t00000031000000 and read the first page of "Creating and Managing FGDC metadata" for directions and insights. 2. Data for mines and prospects in the area are available at the USGS Mineral Resources On-Line Spatial Data website at http://mrdata.usgs.gov/mineral-resources/mrds-us.html and can be downloaded in a variety of formats for use in a GIS. ACKNOWLEDGMENTS Technical reviews by David A. John, Alan R. Wallace, and J. Douglas Causey greatly improved improved this report. Robert J. Miller prepared the raster image for the topographic basemap. John C. Wallis (Serrano IT Services) performed the digital cartography necessary to produce the geologic map. The bibliographical reference for this publication is: Graybeal, F.T., Moyer, L.A., Vikre, P.G., Dunlap, Pamela, and Wallis, J.C., 2015, Geologic map of the Patagonia Mountains, Santa Cruz County, Arizona: U.S. Geological Survey Open-File Report 2015-1023, pamphlet 10 p., and digital data, scale 1:48,000, http://dx.doi.org/10.3133/ofr20151023. This report and any updates to it are available online only at http://dx.doi.org/10.3133/ofr20151023.