Labile trace elements in carbonaceous chondrites - A survey

Details Labile trace elements in carbonaceous chondrites - A survey Labile trace elements in carbonaceous chondrites - A survey

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....9710199x&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. E6, June 25, 1992, p. 10,199-10,211.

Physics

8

Carbonaceous Chondrites, Trace Elements, Antarctic Regions, Neutron Activation Analysis, Radiochemistry, Volatility

Scientific paper

Data are presented on 14 trace elements, including Co, Au, Ga, Rb, Sb, Ag, Se, Cs, Te, Zn, Cd, Bi, Tl, and In (nearly all of which are moderately or highly labile in meteorites), obtained by radiochemical neutron activation analyses of 42 C2-C6 chondrites, all but three from Antarctica. The data indicate that carbonaceous chondrites of petrographic types 2-6 define compositional continua. It is suggested that carbonaceous C2-C6 chondrites may reflect a mixture of material that formed at low temperatures and that contained cosmic levels of highly labile elements, with material that was devoid of them.

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