Detecting natural fractures with ground penetrating radar and airborne night-thermal infrared imagery around Old Faithful Geyser, Yellowstone National Park, USA
| Autor: | Bridget Y. Lynne, GJ Smith, C. Jaworowski, Isaac J. Smith, Henry Heasler, Duncan K. Foley |
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| Rok vydání: | 2020 |
| Předmět: |
geography
Thermal infrared geography.geographical_feature_category Renewable Energy Sustainability and the Environment National park 0211 other engineering and technologies Geology 02 engineering and technology Structural basin Fault (geology) 010502 geochemistry & geophysics Geotechnical Engineering and Engineering Geology 01 natural sciences Natural (archaeology) Ground-penetrating radar Fracture (geology) 021108 energy Geomorphology 0105 earth and related environmental sciences |
| Zdroj: | Geothermics. 85:101775 |
| ISSN: | 0375-6505 |
| DOI: | 10.1016/j.geothermics.2019.101775 |
| Popis: | Both surface and shallow (∼3 m depth) subsurface natural fractures exist around the siliceous sinter cone of Old Faithful Geyser in Yellowstone National Park. Surface fracture trends identified using night-thermal infrared (TIR) imagery are consistent with previously mapped fault and fracture trends in the Upper Geyser Basin and Old Faithful area. An April 2015 ground penetrating radar (GPR) survey of the Old Faithful Geyser cone detected similar “blind” subsurface fracture trends around the siliceous sinter cone of Old Faithful Geyser. Intersecting NE and NW as well as WNW and ENE trends in the shallow subsurface provide potential fracture pathways for the flow of hydrothermal fluids around Old Faithful Geyser. Both the TIR and GPR techniques contribute new information on the permeable pathways around Old Faithful Geyser. |
| Databáze: | OpenAIRE |
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