R Raman Spectroscopy and Petrology of Antarctic CR Chondrites: Comparison with Other Carbonaceous Chondrites

In Renazzo-like carbonaceous (CR) chondrites, abundant original Fe,Ni-metal is preserved in chrondules, but the matrix is characterized by fine-grained magnetite with phyllosilicate. This combination of reduced Fe in chrodrules with oxidized Fe and phyllosilicate in the matrix has been attributed to...

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Bibliographic Details
Main Authors: Yamaguchi, A., Zolensky, M. E., Fagan, T. J., Mikouchi, T., Yasutake, M., Komatsu, M.
Format: Other/Unknown Material
Language:unknown
Published: 2015
Subjects:
Lunar and Planetary Science and Exploration
Chemistry and Materials (General)
Antarctic
Antarc*
Online Access:http://hdl.handle.net/2060/20150021075
Description
Summary:In Renazzo-like carbonaceous (CR) chondrites, abundant original Fe,Ni-metal is preserved in chrondules, but the matrix is characterized by fine-grained magnetite with phyllosilicate. This combination of reduced Fe in chrodrules with oxidized Fe and phyllosilicate in the matrix has been attributed to aqueous alteration of matrix at relatively low temperatures.

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