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Photochemical weathering and contemporary volatile loss on MarsIn an earlier series of papers by the author it was proposed that photochemical weathering of Fe(2+) in magnetite and in mafic silicates may be occurring in the contemporary surface environment with a resultant loss of O2 from the atmosphere. Morris and Lauer challenged the photochemical weathering model, proposing that oxidation by radiant heating rather than UV photoelectron emission induced oxidation may have dominated in the authors experiments. Subsequent laboratory studies of photochemical weathering of magnetite described here support the authors original proposal that UV illunimation can indeed drive the oxidation of magnetite under contemporary Martian surface conditions. The negative results of the Morris and Lauer study can now be explained.
Document ID
19890001424
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Huguenin, R. L. (Massachusetts Univ. Amherst, MA, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1987
Publication Information
Publication: Lunar and Planetary Inst., MECA Symposium on Mars: Evolution of its Climate and Atmosphere
Subject Category
Lunar And Planetary Exploration
Accession Number
89N10795
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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