Mapping Advanced Argillic Alteration at Cuprite, Nevada, Using Imaging Spectroscopy

• DOI: 10.2113/econgeo.109.5.1179
• Publication Date: 2014-05-15T20:52:56Z
• Authors: G. A. Swayze; R. N. Clark; A. F. H. Goetz; K. E. Livo; G. N. Breit; F. A. Kruse; S. J. Sutley; L. W. Snee; H. A. Lowers; J. L. Post; R. E. Stoffregen; R. P. Ashley
• Keywords: Geological survey; Cuprite; George (robot)

Research Article| August 01, 2014 Mapping Advanced Argillic Alteration at Cuprite, Nevada, Using Imaging Spectroscopy Gregg A. Swayze; Swayze 1U.S. Geological Survey, MS 964 Box 25046, Denver Federal Center, Denver, Colorado 80225 Corresponding author: e-mail, [e-mail] Search for other works by this author on: GSW Google Scholar Roger N. Clark; Clark Alexander F.H. Goetz; Goetz 2University of Colorado, Department Sciences, Emeritas, Boulder, 80309 K. Eric Livo; Livo George Breit; Breit Fred Kruse; Kruse 3Physics and Remote Sensing Naval Postgraduate School, Monterey, California 93943 Stephen J. Sutley; Sutley Lawrence W. Snee; Snee Heather Lowers; Lowers James L. Post; Post 4740 Zion St., Nevada City, 95959 E. Stoffregen; Stoffregen 5AWK Consulting Engineers, 1225 Rodi Rd., Turtle Creek, Pennsylvania 15145 P. Ashley 6U.S. 345 Middlefield Menlo Park, 94025 Author Article Information Publisher: Society Economic Geologists Received: 11 Apr 2013 Accepted: Sep First Online: 09 Mar 2017 Online ISSN: 1554-0774 Print 0361-0128 © Geologists. Geology (2014) 109 (5): 1179–1221. https://doi.org/10.2113/econgeo.109.5.1179 history Cite View This Citation Add to Manager Share Icon Facebook Twitter LinkedIn MailTo Tools Get Permissions Site Swayze, Clark, Goetz, Livo, Breit, Kruse, Sutley, Snee, Lowers, Post, Stoffregen, Ashley; Spectroscopy. 2014;; doi: Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Dropdown Menu input auto suggest filter your All ContentBy SocietyEconomic Abstract Mineral maps based on Airborne Visible/Infrared Spectrometer (AVIRIS) data were used study late Miocene advanced argillic alteration Nevada. Distributions Fe-bearing minerals, clays, micas, sulfates, carbonates mapped using the Tetracorder spectral-shape matching system. The Al content white micas increases toward altered areas near intrusive rocks. Alunite composition varies from pure K intimate mixtures Na-K endmembers with subpixel occurrences huangite, Ca analogue alunite. Intimately mixed alunite marks relatively lower temperature, whereas co-occurring Na-alunite dickite may delineate relict hydrothermal conduits. presence dickite, halloysite, well-ordered kaolinite, but absence disordered is consistent acidic conditions during alteration. Partial lichen cover opal spectrally mimics chalcedony, limiting its detection lichen-free areas. Pods buddingtonite are remnants initial quartz-adularia-smectite Thus, spectral provide a synoptic view surface mineralogy, define previously unrecognized early steam-heated event.Faulting episodes Cuprite intimately linked upper plate movements above Silver Peak-Lone Mountain detachment growth, collapse, resurgence nearby Stonewall volcanic complex between 8 5 Ma. Isotopic dating indicates that activity started least 7.61 Ma ended about 6.2 Spectral stable isotope low-sulfidation adularia-sericite type hot spring deposit overprinted late-stage, formed along margin caldera. You do not have access content, please speak institutional administrator if you feel should access.