Other
Scientific paper
Jul 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988e%26psl..89..163r&link_type=abstract
Earth and Planetary Science Letters (ISSN 0012-821X), vol. 89, no. 2, July 1988, p. 163-169.
Other
4
Cadmium Isotopes, Chondrites, Meteoritic Composition, Petrology, Abundance, High Temperature Environments, Metamorphism (Geology)
Scientific paper
Measurements of the isotopic composition of cadmium in whole rock samples of a number of unequilibrated ordinary chondrites have shown the presence of significant fractionation in the abundances of the isotopes. Some meteorites are enhanced in the light isotopes with respect to a laboratory standard, while the reverse effect is exhibited in other meteorites. The mass fractionation is linear over the range 106-116 within the limits set by experimental error. The extent of the mass-dependent fractionation varies from -2.1 percent per mass unit for light isotope enrichment for the LL3 chondrite Semarkona, to +2.7 percent per mass unit for the LL3 chondrite Bishunpur. This is the first time that negative mass fractionation has been reported for cadmium in meteoritical material.
de Laeter John R.
Rosman Kevin J. R.
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