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Rare gas analysis of size fractions from the Fayetteville meteoriteEight size separates of grains from the Fayetteville meteorite ranging from less than 20 microns to greater than 1 millimeter are being analyzed for their rare gas elemental and isotopic composition. Measurements on five samples were performed. All five reveal a mixture of solar, planetary, cosmic ray produced and radiogenic gases. The solar component is of particular interest since it suggest that the meteorite may represent a fragment of an ancient protoplanetary regolith which was exposed to the solar wind. Solar wind elements are implanted in the outer few hundred Angstroms of exposed grains and are therefore expected to be surface correlated. At present the data do not suggest that such a correlation exists, but the final conclusion must await further analyses and data reduction.
Document ID
19870016454
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Jordan, Jim L. (Lamar Univ. Beaumont, TX, United States)
Date Acquired
September 5, 2013
Publication Date
June 1, 1987
Publication Information
Publication: NASA. Lyndon B.
Subject Category
Astrophysics
Accession Number
87N25887
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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