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Mapping weathering and alteration minerals in Virginia City, Nevada with AVIRIS and HyperSpecTIR

Show simple item record Vaughan, R. Greg Calvin, Wendy M. 2009-03-09T17:49:41Z 2009-03-09T17:49:41Z 2006-02
dc.identifier.citation JPL/ARVIS Airborne Geoscience Workshop, Pasadena, California, February 2006 en_US
dc.identifier.clearanceno 05-0899
dc.description.abstract Situated on the east side of the Virginia Range, Virginia City (Figure 1) is the home of the historic Comstock mining district and was mined as a source of Au and Ag between 1859 and the 1960's, with numerous underground workings and small open pit operations. The Virginia Range consists mostly of Oligocene to Miocene volcanic rocks that overlie Mesozoic metamorphic rocks (Mzvs) and Cretaceous granodiorite (Kgd). Andesite to dacite flows, breccias and intrusives of the Alta Formation (Ta) (18-15 Ma) (Hudson, 2003) are overlain by intermediate volcanic, volcaniclastic and locally intrusive rocks of the Kate Peak Formation (Tk) (14.7-12 Ma) (Vikre, 1998; Hudson, 2003). Contemporaneous with the Alta Formation was the intrusion of the Davidson diorite (1 5.2 Ma) (Castor et al., 2002), which forms the bulk of Mt. Davidson just west of the town site. Hydrothermal alteration in the Comstock district is widespread, with several episodes of hydrothermal events and subsequent precious metal mineralization... en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2005. en_US
dc.subject Airborne Visible Infrared Imaging Spectrometer (ARVIS) en_US
dc.subject hyperspectral en_US
dc.subject mineral mapping en_US
dc.subject HyperSpecTIR (HST) en_US
dc.title Mapping weathering and alteration minerals in Virginia City, Nevada with AVIRIS and HyperSpecTIR en_US
dc.type Preprint en_US

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