Chemical studies of L chondrites. IV - Antarctic/non-Antarctic comparisons

Details Chemical studies of L chondrites. IV - Antarctic/non-Antarctic comparisons Chemical studies of L chondrites. IV - Antarctic/non-Antarctic comparisons

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989gecoa..53..491k&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 53, Feb. 1989, p. 491-501.

Computer Science

3

Antarctic Regions, Chondrites, Cosmochemistry, Meteoritic Composition, Petrology, Trace Elements, Weathering, Meteorites, Antarctic Meteorites, L Chondrites, Chemistry, Rnaa, Samples, Meteorite, Laboratory Studies, Neutron Activation Analysis, Siderophiles, Lithophiles, Chalcophiles, Trace Elements, Comparisons, Shock Effects, Weathering, Composition, Origin, Parent Bodies, Catalog, Thermal Effects, Temperature, Procedure, Allende, Alh Meteorites, Rkp Meteorites, Eet Meteorites, Met Meteorites, Petrology, T

Scientific paper

The concentrations of Co, Au, Ag, Ga, Se, Rb, Cs, Te, Bi, In, Tl, and Cd volatile/mobile trace elements were determined for the interior portions of 19 L3-6 chondrites from Victoria Land, Antarctica, and the results were compared with those for contemporary non-Antarctic L4-6 chondrite falls reported by Neal et al. (1981), Walsh and Lipschutz (1982), and Huston and Lipschutz (1984). The comparison revealed substantial differences between the Antarctic and non-Antarctic samples. In particular, trace element contents in Victoria Land samples do not exhibit the pronounced shock loading effect evident in contemporary falls. The interelement compositional trends in the non-Antarctic and Victoria Land chondrite populations also differ. It is suggested that the differences found between the Antarctic and non-Antarctic L chondrites are due to the preterrestrial origin of the former.

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