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Geochemical Journal
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A possible highly fractionated and barium-rich micro-component in the Allende meteorite

Tsuyoshi Tanaka, Noboru Nakamura, Akimasa Masuda
Geochemical Journal, Vol. 10, No. 3, P. 111-114, 1976

ABSTRACT

Rare-earth elements and Ba abundances for several fragments of the Allende meteorite were determined. Even for a powder sample carefully prepared, REE and Ba abundances determined were found to vary occasionally from portion to portion taken; a portion happened to demonstrate a very high Ba content and a considerably fractionated REE pattern as comapred with the “representative” ones. This fact suggests the possible presence of Ba-rich micro-component with fractionated REE pattern in the Allende meteorite. Observations from other bulk samples of the same meteorite also corroborate this inference.

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