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THE ATLANTA ENSTATITE CHONDRITE BRECCIA
Author(s) -
Rubin Alan E.
Publication year - 1983
Publication title -
meteoritics
Language(s) - English
Resource type - Journals
eISSN - 1945-5100
pISSN - 0026-1114
DOI - 10.1111/j.1945-5100.1983.tb00582.x
Subject(s) - enstatite , chondrite , breccia , geology , geochemistry , carbonaceous chondrite , ordinary chondrite , formation and evolution of the solar system , clastic rock , parent body , meteorite , astrobiology , sedimentary rock , physics
Atlanta is the fifth known brecciated enstatite chondrite. It contains a centimeter‐sized troilite‐rich clast, similar to those that occur in Blithfield. All of these clasts probably formed in the solar nebula under high pS 2 /pO 2 conditions in a gas of non‐cosmic composition. The absence of ordinary or carbonaceous chondrite clasts in any of the enstatite chondrite breccias and absence of enstatite chondrite clasts or materials formed at high pS 2 /pO 2 ratios in ordinary and carbonaceous chondrite breccias support the model that enstatite chondrites were formed at a location distant from those of the other chondritic groups.