Abstracts of Annual Meeting of the Geochemical Society of Japan
Abstracts of Annual Meeting of the Geochemical Society of Japan
Session ID : 3P08
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Host: Abstracts of Annual Meeting of the Geochemical Society of Japan

SIMS analyses of siderophile elements in metal grains in the Y 81020 (CO 3.05) chondrite
*Hajime Hiyagon, Yuichi Morishita, Genji Saito
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Keywords: chondrite, metal grains, siderophile elements, SIMS, PGE
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Abstract
An analytical method has been developed for trace siderophile elements in metal grains using SIMS, and several arroys containing various siderophile elements were synthesized for the SIMS standard. Using this method, tiny metal grains in chondrules and a large one in the matrix of Y 81020 (CO 3.05) chondrite were analyzed. The results show that abundances of siderophile elements (esp. Pt and Ir) show large variations among metal grains.
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© 2015 by The Geochemical Society of Japan
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