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Hydrothermal alteration maps of the central and southern Basin and Range province of the United States compiled from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data

Open-File Report 2013-1139
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https://doi.org/10.3133/ofr20131139

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Abstract

Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data and Interactive Data Language (IDL) logical operator algorithms were used to map hydrothermally altered rocks in the central and southern parts of the Basin and Range province of the United States. The hydrothermally altered rocks mapped in this study include (1) hydrothermal silica-rich rocks (hydrous quartz, chalcedony, opal, and amorphous silica), (2) propylitic rocks (calcite-dolomite and epidote-chlorite mapped as separate mineral groups), (3) argillic rocks (alunite-pyrophyllite-kaolinite), and (4) phyllic rocks (sericite-muscovite). A series of hydrothermal alteration maps, which identify the potential locations of hydrothermal silica-rich, propylitic, argillic, and phyllic rocks on Landsat Thematic Mapper (TM) band 7 orthorectified images, and geographic information systems shape files of hydrothermal alteration units are provided in this study.

Suggested Citation

Mars, J.L., 2013, Hydrothermal alteration maps of the central and southern Basin and Range province of the United States compiled from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data (Originally posted November 21, 2013; Revised April 8, 2014): U.S. Geological Survey Open-File Report 2013-1139, Report: iv, 6 p.; 13 Maps: 52.00 x 52.00 inches; Downloads Directory, https://doi.org/10.3133/ofr20131139.

ISSN: 2331-1258 (online)

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title Hydrothermal alteration maps of the central and southern Basin and Range province of the United States compiled from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data
Series title Open-File Report
Series number 2013-1139
DOI 10.3133/ofr20131139
Edition Originally posted November 21, 2013; Revised April 8, 2014
Year Published 2013
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Eastern Mineral and Environmental Resources Science Center
Description Report: iv, 6 p.; 13 Maps: 52.00 x 52.00 inches; Downloads Directory
Country United States
Datum 1927 North American Datum
Projection Universal Transverse Mercator projection, zone 11N
Online Only (Y/N) Y
Additional Online Files (Y/N) Y
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