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Oxidation during metamorphism of the ordinary chondritesIt is suggested that some current concepts about the conditions of metamorphism in ordinary chondrites may be flawed. These meteorites display small systematic variations in the oxidation state of Fe. Evidence is presented that oxidation of Fe is linked to metamorphic grade in types 4-6 ordinary chondrites. This conclusion is at variance with a commonly accepted model for chondrite metamorphism that assumes Fe reduction by graphite.
Document ID
19930046875
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Mcsween, Harry Y., Jr.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Labotka, Theodore C.
(Tennessee Univ. Knoxville, United States)
Date Acquired
August 16, 2013
Publication Date
March 1, 1993
Publication Information
Publication: Geochimica et Cosmochimica Acta
Volume: 57
Issue: 5
ISSN: 0016-7037
Subject Category
Lunar And Planetary Exploration
Accession Number
93A30872
Funding Number(s)
CONTRACT_GRANT: NAG9-58
Distribution Limits
Public
Copyright
Other

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