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Constraints on the Mineralogy of Gale Crater Mudstones from MSL SAM Evolved WaterThe Sample Analysis at Mars (SAM) and Chemistry and Mineralogy (CheMin) instruments on the Mars Science Laboratory (MSL) have analysed more than 150 micron fines from 14 sites at Gale Crater. Here we focus on the mudstone samples. Two were drilled from sites John Klein (JK) and Cumberland (CB) in the Sheepbed mudstone. Six were drilled from Murray Formation mudstone: Confidence Hills (CH), Mojave (MJ), Telegraph Peak (TP), Buckskin (BK), Oudam (OU), Marimba (MB). SAM's evolved gas analysis mass spectrometry (EGA-MS) detected H2O, CO2, O2, H2, SO2, H2S, HCl, NO, and other trace gases, including organic fragments. The identity and evolution temperature of evolved gases can support CheMin mineral detection and place constraints on trace volatile-bearing phases or phases difficult to characterize with X-ray diffraction (e.g., amorphous phases). Here we will focus on SAM H2O data and comparisons to SAM-like analyses of key reference materials.
Document ID
20170002372
Document Type
Conference Paper
Authors
McAdam, A. C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Sutter, B. (Jacobs Technology, Inc. Houston, TX, United States)
Franz, H. B. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hogancamp, J. V. (Clark) (Jacobs Technology, Inc. Houston, TX, United States)
Knudson, C. A. (Maryland Univ. College Park, MD, United States)
Andrejkovicova, S. (Universities Space Research Association Columbia, MD, United States)
Archer, P. D. (Jacobs Technology, Inc. Houston, TX, United States)
Eigenbrode, J. L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Ming, D. W. (NASA Johnson Space Center Houston, TX, United States)
Mahaffy, P. R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
March 20, 2017
Publication Date
March 20, 2017
Subject Category
Lunar and Planetary Science and Exploration
Report/Patent Number
JSC-CN-39037
Meeting Information
Lunar and Planetary Science Conference(The Woodlands, TX)
Distribution Limits
Public
Copyright
Public Use Permitted.

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