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Oxychlorine Detection in Gale Crater, Mars and Implications for Past Environmental ConditionsThe Sample Analysis at Mars (SAM) instrument on the Mars Science Laboratory (MSL) rover Curiosity has analyzed 3 scooped samples and 15 drilled samples since landing in 2012. Oxychlorine compounds (perchlorate/chlorate) were detected in the first 9 drilled samples but have not been detected in the last 6, starting with the Oudam sample in the Hartmann’s Valley member of the Murray formation (Table 1). Scooped samples have all contained detectable oxychlorine. These results suggest that oxychlorine formation and preservation spans the geologic record on Mars but has not been uniform spatially or temporally.
Document ID
20190001850
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Archer, P. D., Jr. (Jacobs Technology, Inc. Houston, TX, United States)
Ming, D. W. (NASA Johnson Space Center Houston, TX, United States)
Sutter, B. (Jacobs Technology, Inc. Houston, TX, United States)
Hogancamp, J. V. (Jacobs Technologies Engineering Science Contract Group Houston, TX, United States)
Morris, R. V. (NASA Johnson Space Center Houston, TX, United States)
Clark, B. C. (Space Science Inst. (SSI) Boulder, CO, United States)
Mahaffy, P. H. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Wray, J. J. (Georgia Inst. of Technology Atlanta, GA, United States)
Fairen, A. G. (Centro de Astrobiología (CSIC-INTA) Madrid, Spain)
Gellert, R. (University of Guelph Guelph, Ontario, Canada)
Yen, A. S. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Blake, D. F. (NASA Ames Research Center Moffett Field, CA, United States)
Vaniman, D. T. (NASA Ames Research Center Moffett Field, CA, United States)
Glavin, D. P. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Eigenbrode, J. L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Trainer, M. G. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Navarro-Gonzalez, R. (Universidad Nacional Autonoma de Mexico Mexico City, Mexico)
McKay, C. P. (NASA Ames Research Center Moffett Field, CA, United States)
Freissinet, C. (Institut Pierre-Simon Laplace Paris, France)
Date Acquired
March 25, 2019
Publication Date
March 18, 2019
Subject Category
Lunar And Planetary Science And Exploration
Report/Patent Number
JSC-E-DAA-TN64978
Funding Number(s)
CONTRACT_GRANT: NNJ13HA01C
Distribution Limits
Public
Copyright
Public Use Permitted.

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