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The petrogenesis of L-6 chondrites - Insights from the chemistry of mineralsMeasurements of the major, minor and trace element abundances of the major minerals of the L-6 chondrites Alfianello, Colby (WI) and Leedey are used to investigate the formation mechanisms of L-6 chondrites. Electron microprobe analysis was performed on individual grains of each mineral, and separated minerals were analyzed by instrumental and radiochemical neutron activation analysis. The compositions of the three meteorites are observed to be generally uniform, however different abundances and distributions of rare earth elements and Co and Ni indicate that the meteorites have different petrogenetic histories. Alkali element distributions are found to be incompatible with internal equilibration of a closed system.
Document ID
19790061617
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Curtis, D. B.
Schmitt, R. A.
(Oregon State University Corvallis, Ore., United States)
Date Acquired
August 9, 2013
Publication Date
July 1, 1979
Publication Information
Publication: Geochimica et Cosmochimica Acta
Volume: 43
Subject Category
Lunar And Planetary Exploration
Accession Number
79A45630
Funding Number(s)
CONTRACT_GRANT: NGL-38-002-020
Distribution Limits
Public
Copyright
Other

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