Abstracts of Annual Meeting of the Geochemical Society of Japan
52th Annual Meeting of the Geochemical Society of Japan
Session ID : 1D01
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extraterrestrial materials
Examination of correlation between carbonaceous matter and olivines in the Allende meteorite
*Tatsushi MuraeKen-ichi Horie
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Abstract
Correlation between major carbonaceous matter and olivines in the Allende meteorite was examined bylaser Raman. We found followings. (1)In matrix, major carbonaceous matter is graphitic carbon having homogeneous molecular size. (2) In matrix, composition of olivine is almost constant and FeO-rich. (3) In matrix,alomost all carbonaceous matter coexists with olivines. (4) In chondrule too, carbonaceous matter coexists with olivines . (5) In chondrule, the olivine which coexists with carbonaceous matter is almost pure forsterite. (6) In chondrule rim, the molecular size of carbonaceous matter varies a lot. (7)Composition of a olivine also changes a lot in the rim. (8)In chondrule rim, correlation is not observed between location of carbonaceous matter and location of olivine.
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© 2005 by The Geochemical Society of Japan
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