Using ground penetrating radar, scanning electron microscopy and thermal infrared imagery to document near-surface hydrological changes in the old faithful Geyser area, Yellowstone National Park, U.S.A.

Bridget Y. Lynne, Henry Heasler, Cheryl Jaworowski, Duncan Foley, Isaac J. Smith, Gary J. Smith, Dyah Sahdarani

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Ground penetrating radar (GPR), thermal infrared imagery (TIR), scanning electron microscopy (SEM), and X-ray diffraction (XRD) provide an understanding of shallow subsurface altered zones in the Old Faithful Geyser area. The GPR and TIR are temporal snapshots of the hydrothermal system; GPR reflections suggest extensive subsurface zones of hydrothermal alteration. SEM-XRD document changes in hydrologic conditions. SEM-XRD analyses of sinters demonstrate a multi-stage formation history, pH-temperature hydrodynamic changes, and dissolution by acidic steam condensate. TIR images show surface thermal trends that are consistent with mapped fractures and/or faults and with the GPR, SEM and XRD results.

Original languageEnglish
Pages (from-to)33-53
Number of pages21
JournalGeothermics
Volume68
DOIs
Publication statusPublished - 1 Jul 2017

Keywords

  • Ground penetrating radar
  • Hydrothermal alteration
  • Old faithful geyser
  • Scanning electron microscopy
  • Shallow hydrology
  • Siliceous sinter
  • Thermal infrared imagery

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