LIME silicates in amoeboid olivine aggregates in carbonaceous chondrites: Indicator of nebular and asteroidal processes

Amoeboid Olivine Aggregates in CR Chondrites

Introduction: Amoeboid Olivine Aggregates (AOAs) are irregular-shaped, fine-grained aggregates of olivine and refractory minerals and are important components of C chondrites. The AOAs in CV chondrites have been interpreted to be primary nebular condensates [1] and therefore, can provide constraints on models for nebular condensation. AOAs are intermediate in composition, and may be a link, bet...

Low-ca Pyroxene in Amoeboid Olivine Aggregates in Primitive Carbonaceous Chondrites

CHONDRITES. Alexander N. Krot, Mikhail I. Petaev, and Hisayoshi Yurimoto, Hawai'i Institute of Geophysics and Planetology, School of Ocean and Earth Science and Technology, University of Hawai'i at Manoa, Honolulu, HI 96822, USA ([email protected]); Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA ([email protected]); Earth and Planetary Sciences, Tokyo Institute ...

FIRST Ti-XANES ANALYSES OF OLIVINE IN AMOEBOID OLIVINE AGGREGATES

Petrology of Amoeboid Olivine Aggregates in Antarctic CR chondrites: Evidence for Aqueous Alteration and Shock Metamorphism

Alteration and Shock Metamorphism. M. Komatsu, T. J. Fagan, A. Yamaguchi, T. Mikouchi, M. Yasutake, and M. E. Zolensky SOKENDAI, The Graduate University for Advanced Studies, Kanagawa, Japan ([email protected]), Dept. Earth Sciences, Waseda University, Japan, National Institute of Polar Research (NIPR), Japan, Dept. Earth and Planetary Science, The University of Tokyo, Japan, ARES, NA...

Aqueous Alteration of Carbonaceous Chondrites: Evidence for Asteroidal