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Chemical studies of L chondrites. II - Shock-induced trace element mobilizationData for 13 trace elements in 14 L4-6 chondrites of established shock history are reported and discussed. These data are combined with data for an additional 13 L4-6 chondrites to delineate the full extent of losses by shock. Trace element contents vary with petrologic type, S/Fe subgroup, and shock history, the last dominating strongly. Absolute abundances and interelement relationships for the six or seven most mobile elements vary with degree of shock-loading established from mineralogic and petrologic study. Shock-heating, previously known to have affected radiogenic Ar-40 and/or He-4 in meteorites but not other elements, apparently was at least as effective as other open-system processes in establishing mobile trace element contents of L chondrites and probably others.
Document ID
19830040115
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Walsh, T. M.
(Purdue Univ. West Lafayette, IN, United States)
Lipschutz, M. E.
(Purdue University West Lafayette, IN, United States)
Date Acquired
August 11, 2013
Publication Date
December 1, 1982
Publication Information
Publication: Geochimica et Cosmochimica Acta
Volume: 46
Subject Category
Lunar And Planetary Exploration
Accession Number
83A21333
Funding Number(s)
CONTRACT_GRANT: DE-FG02-80ER-10725
CONTRACT_GRANT: NGL-15-005-140
Distribution Limits
Public
Copyright
Other

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