The stable carbon isotopes in enstatite chondrites and Cumberland Falls

Details The stable carbon isotopes in enstatite chondrites and Cumberland Falls The stable carbon isotopes in enstatite chondrites and Cumberland Falls

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985gecoa..49...89d&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 49, Jan. 1985, p. 89-95.

Computer Science

5

Achondrites, Carbon Isotopes, Chondrites, Enstatite, Meteoritic Composition, Cohenite, Mass Spectroscopy, Trace Elements, Meteorites, Cumberland Falls, Carbon, Isotopes, Enstatites, Abee, Composition, Indarch, St. Marks, Pillisfer, Hvittis, Daniels Kuil, Achondrites, Samples, Meteorite, Comparisons, Petrology, Enrichment, Abundance, Procedure, Mass Spectrometry, Mineralogy

Scientific paper

The carbon-isotopic composition (CIC) of the total carbon in the enstatite chondrites Indarch, Abee, St. Marks, Pillistfer, Hvittis and Daniel's Kuil and the enstatite achondrite Cumberland Falls has been measured. The empirical relationship between CIC and total carbon content is distinct from that of carbonaceous and ordinary chondrites. Within the enstatite chondrite group the average C-13 content increases with petrographic type: E4 less than E5 less than E6. Daniel's Kuil shows the largest C-13 enrichment in the bulk carbon of any meteorite. The CIC is most clearly correlated with the abundance of the elements Zn, Cd, and In. Insofar as these elements may hold the key to the understanding of enstatite chondrites, more detailed combined CIC and trace-element studies of these meteorites will play an important role in the deciphering of their history.

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