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An attempt to comprehend Martian weathering conditions through the analysis of terrestrial palagonite samplesSpectroscopic observations of the Martian surface in the invisible to near infrared (0.4-1.0 micron), coupled with measurements made by Viking, have shown that the surface is composed of a mixture of fine-grained weathered and nonweathered minerals. The majority of the weathered components are thought to be materials like smectite clays, scapolite, or palagonite. Until materials are returned for analysis there are two possible ways of proceeding with an investigation of Martian surface processes: (1) the study of weathering products in meteorites that have a Martian origin (SNC's), and (2) the analysis of certain terrestrial weathering products as analogs to the material found in SNC's, or predicted to be present on the Martian surface. We describe some preliminary measurements of the carbon chemistry of terrestrial palagonite samples that exhibit spectroscopic similarities with the Martian surface. The data should aid the understanding of weathering in SNC's and comparisons between terrestrial palagonites and the Martian surface.
Document ID
19940017195
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Douglas, C. (Open Univ. Milton, United Kingdom)
Wright, I. P. (Open Univ. Milton, United Kingdom)
Bell, J. B. (NASA Ames Research Center Moffett Field, CA, United States)
Morris, R. V. (NASA Lyndon B. Johnson Space Center Houston, TX., United States)
Golden, D. C. (NASA Lyndon B. Johnson Space Center Houston, TX., United States)
Pillinger, C. T. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Lunar and Planetary Inst., Workshop on Early Mars: How Warm and How Wet?, Part 1
Subject Category
Lunar And Planetary Exploration
Accession Number
94N21668
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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