The Patagonia Mountains contain two large porphyry Cu-Mo systems each with separate associated hypogene and supergene zones, two high-grade Cu-Mo breccia pipes, one large epithermal Ag-Pb-Zn-Mn deposit, and numerous additional areas of base- and precious-metal mineralization all zoned around a Laramide-age composite batholith of intermediate composition. Compilations and new work by Vikre and others (2014) have identified as many as eight separate intrusive phases of the batholith and five separate hydrothermal events spanning at least 16 m.y., in addition to a supergene enrichment event of middle Tertiary age. The geologic map presents a spatial context for this important new information that is intended to support further work in this highly mineralized region.
Several spatial databases provide data for the geologic map of the Patagonia Mountains in Arizona. The data can be viewed and queried in ArcGIS 10, a geographic information system; a geologic map is also available in PDF format. All products are available online only.
|Publication Subtype||USGS Numbered Series|
|Title||Geologic map of the Patagonia Mountains, Santa Cruz County, Arizona|
|Series title||Open-File Report|
|Publisher||U.S. Geological Survey|
|Publisher location||Reston, VA|
|Contributing office(s)||Geology, Minerals, Energy, and Geophysics Science Center|
|Description||Pamphlet: 10 p.; Mapsheet: 38.57 x 31.32 inches; Spatial database; Readme; Metadata|
|County||Santa Cruz County|
|Other Geospatial||Patagonia Mountains|
|Datum||North American Datum of 1927|
|Projection||Universal Transverse Mercator projection|
|Online Only (Y/N)||Y|
|Additional Online Files (Y/N)||Y|
|Google Analytic Metrics||Metrics page|