Hyperspectral Mineral Mapping in Support of Geothermal Exploration: Examples from Long Valley Caldera, CA and Dixie Valley, NV, USA Metadata

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Title

  • Main Title Hyperspectral Mineral Mapping in Support of Geothermal Exploration: Examples from Long Valley Caldera, CA and Dixie Valley, NV, USA

Creator

  • Author: Pickles, W. L.
    Creator Type: Personal
  • Author: Martini, B. A.
    Creator Type: Personal
  • Author: Silver, E. A.
    Creator Type: Personal
  • Author: Cocks, P. A.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE

Publisher

  • Name: Lawrence Livermore National Laboratory
    Place of Publication: Livermore, California
    Additional Info: Lawrence Livermore National Laboratory (LLNL), Livermore, CA

Date

  • Creation: 2004-03-03

Language

  • English

Description

  • Content Description: Growing interest and exploration dollars within the geothermal sector have paved the way for increasingly sophisticated suites of geophysical and geochemical tools and methodologies. The efforts to characterize and assess known geothermal fields and find new, previously unknown resources has been aided by the advent of higher spatial resolution airborne geophysics (e.g. aeromagnetics), development of new seismic processing techniques, and the genesis of modern multi-dimensional fluid flow and structural modeling algorithms, just to name a few. One of the newest techniques on the scene, is hyperspectral imaging. Really an optical analytical geochemical tool, hyperspectral imagers (or imaging spectrometers as they are also called), are generally flown at medium to high altitudes aboard mid-sized aircraft and much in the same way more familiar geophysics are flown. The hyperspectral data records a continuous spatial record of the earth's surface, as well as measuring a continuous spectral record of reflected sunlight or emitted thermal radiation. This high fidelity, uninterrupted spatial and spectral record allows for accurate material distribution mapping and quantitative identification at the pixel to sub-pixel level. In volcanic/geothermal regions, this capability translates to synoptic, high spatial resolution, large-area mineral maps generated at time scales conducive to both the faster pace of the exploration and drilling managers, as well as to the slower pace of geologists and other researchers trying to understand the geothermal system over the long run.
  • Physical Description: PDF-file: 13 pages; size: 3.6 Mbytes

Subject

  • Keyword: Geothermal Exploration
  • Keyword: Long Valley
  • Keyword: Geothermal Fields
  • Keyword: Geothermal Resources
  • Keyword: Fluid Flow
  • Keyword: Geothermal Legacy
  • STI Subject Categories: 58 Geosciences
  • Keyword: Exploration
  • Keyword: Spatial Resolution
  • STI Subject Categories: 15 Geothermal Energy
  • Keyword: Thermal Radiation Geothermal Legacy
  • Keyword: Geothermal Systems

Source

  • Conference: Presented at: Geothermal Resources Council Annual Meeting, Morelia, Mexico, Oct 10 - Oct 16, 2004

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: UCRL-PROC-202710
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 15013899
  • Archival Resource Key: ark:/67531/metadc1411886
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