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.