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Martian hydrogeology sustained by thermally insulating gas and salt hydrates

AuthorsKargel, Jeffrey S.; Furfaro, Roberto; Prieto-Ballesteros, Olga ; Rodríguez, J. Alexis P.; Montgomery, David R.; Gillespie, Alan R.; Marion, Giles M.; Wood, Stephen E.
Heat flow
Hydrous sulfates
Clathrate hydrates
Aram Chaos
Issue DateNov-2007
PublisherGeological Society of America
CitationGeology 35(11): 975-978 (2007)
AbstractNumerical simulations and geologic studies suggest that high thermal anomalies beneath, within, and above thermally insulating layers of buried hydrated salts and gas hydrates could have triggered and sustained hydrologic processes on Mars, producing or modifying chaotic terrains, debris flows, gullies, and ice-creep features. These simulations and geologic examples suggest that thick hydrate deposits may sustain such geothermal anomalies, shallow ground-water tables, and hydrogeologic activity for eons. The proposed mechanism may operate and be self-reinforcing even in today's cold Martian climate without elevated heat flux.
Description4 pages, 3 figures.-- ISI Article Identifier: 000250543900004.
Full-text version available Open Access at: http://duff.geology.washington.edu/grg/publications/pdfs/Mars_Kargel.pdf
Publisher version (URL)http://dx.doi.org/10.1130/G23783A.1
Appears in Collections:(CAB) Artículos
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