Chemical studies of L chondrites. II - Shock-induced trace element mobilization

Details Chemical studies of L chondrites. II - Shock-induced trace element mobilization Chemical studies of L chondrites. II - Shock-induced trace element mobilization

Dec 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982gecoa..46.2491w&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 46, Dec. 1982, p. 2491-2500.

Mathematics

Logic

14

Chondrites, Meteoritic Composition, Shock Heating, Trace Elements, Abundance, Correlation, Petrology

Scientific paper

Data 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.

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