Abundances of chlorine, bromine and iodine in meteorites

Details Abundances of chlorine, bromine and iodine in meteorites Abundances of chlorine, bromine and iodine in meteorites

Oct 1967

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1967gecoa..31.1771g&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 31, Issue 10, pp.1771-1787

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7

Scientific paper

Abundances of Cl, Br and, in many cases, I, in eighteen chondritic meteorites, two octahedrites and a terrestrial basalt have been determined by neutron activation techniques. In general, our data are in agreement with those reported by previous authors, although some discrepancies are noted. Observations by Wyttenrach , Von Spgunten and spScherleon a positive correlation of Cl:Br with Cl content in ordinary chondrites and by Reed and Allen on coherence of Cl, Br and I in carbonaceous and enstatite chondrites are confirmed. Cl:Br ratios (g/g) range from 46 to 6700. Primordial halogen abundance ratios (by numbers of atoms) are estimated to be: Cl:Br 390, Br:I 13. The Murray carbonaceous chondrite is shown to be exceptional in its halogen abundances. These and other abundance anomalies (e.g. those in the Hvittis enstatite chondrite) suggest a complex history of halogen fractionations in meteorites, perhaps involving multiple mechanisms.

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