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Acid-Sulfate Alteration at Gusev Crater and Across Mars: High-SiO2 Residues and Ferric Sulfate PrecipitatesThe Mars Exploration Rover Spirit ended its mission in Gusev crater on sol 2210 after it had become stuck in a deposit of fined-grained and sulfate rich soil with dust covered solar panels unfavorably pointed toward the sun. Final analysis of remaining data from Spirit's Moessbauer spectrometer (Fe redox and mineralogy) for sols 1529 through 2071 is now complete. We focus here on chemical (APXS) and MB data for targets having high-SiO2 or high-SO3 and process link the targets through mixing and geochemical modelling to an acid-sulfate system centered at Home Plate, which is considered to be a hydrovolcanic complex.
Document ID
20170001686
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Morris, R. V. (NASA Johnson Space Center Houston, TX, United States)
Catalano, J. G. (Washington Univ. Saint Louis, MO, United States)
Klingelhoefer, G. (Mainz Univ. Germany)
Schroeder, C. (Stirling Univ. United Kingdom)
Gellert, R. (Guelph Univ. Ontario, Canada)
Clark, B. C. (Space Science Inst. Boulder, CO, United States)
Ming, D. W. (NASA Johnson Space Center Houston, TX, United States)
Yen, A. S. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Arvidson, R. E. (Washington Univ. Saint Louis, MO, United States)
Cohen, B. A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Fleischer, I. (Mainz Univ. Germany)
McCoy, T. J. (Smithsonian Institution Washington, DC, United States)
Mittlefehldt, D. W. (NASA Johnson Space Center Houston, TX, United States)
Squyres, S. W. (Cornell Univ. Ithaca, NY, United States)
Date Acquired
February 22, 2017
Publication Date
March 20, 2017
Subject Category
Lunar And Planetary Science And Exploration
Report/Patent Number
JSC-CN-38839
Meeting Information
Meeting: Lunar and Planetary Science Conference
Location: The Woodlands, TX
Country: United States
Start Date: March 20, 2017
End Date: March 24, 2017
Sponsors: Lunar and Planetary Inst.
Distribution Limits
Public
Copyright
Public Use Permitted.

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