Carbon in the matrices of ordinary chondrites

J. Makjanic, R. D. Vis, J. W. Hovenier, D. Heymann

doi:10.1111/j.1945-5100.1993.tb00249.x

Carbon in the matrices of ordinary chondrites

DOI Web Site Web Site 被引用文献4件

書誌事項

公開日: 1993-03

権利情報

http://onlinelibrary.wiley.com/termsAndConditions#vor

DOI

10.1111/j.1945-5100.1993.tb00249.x

公開者: Wiley

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説明

<jats:p><jats:bold>Abstract—</jats:bold> Carbon in the petrologic matrices of a number of ordinary chondrites of groups H, L, and LL, and of types 3 through 6 was studied with a nuclear microprobe and a Raman microprobe. The majority of the matrices had carbon contents in the narrow range between 0.03 and 0.2 wt%. The carbon content decreased only slightly with increasing petrologic type. Carbon‐rich coats around troilite and/or metal phases occured in five meteorites. Poorly ordered carbon was found in the matrices. The carbon in the meteorites of higher petrologic types was slightly better ordered than in the meteorites of lower types. The narrow range of carbon contents and the similarity of the structural form of carbon in the matrices of the measured ordinary chondrites, which represent all groups and types, imply that their matrices may contain a common component, which might be of interstellar origin.</jats:p>