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Chaunskij: The most highly metamorphosed, shock-modified and metal-rich mesosideriteThe 1990 g Chaunskij meteorite was found in 1985 and classified as an anomalous ungrouped iron. It contains approximately 10 vol. percent mono- and polymineralic troilite-phosphate-silicate inclusions, microns to centimeters in size. We proposed its affinity with mesosiderites; here we present mineralogical, chemical, and isotopic data establishing that Chaunskij is the most highly metamorphosed, shock-modified, and metal-rich of the mesosiderites. The most striking manifestation of metamorphism in Chaunskij is the presence in it of a cordierite-bearing assemblage substituting for basalt lithology.
Document ID
19940016208
Document Type
Conference Paper
Authors
Petaev, M. I. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Clarke, R. S., Jr. (Smithsonian Institution Washington, DC., United States)
Olsen, E. J. (Chicago Univ. IL., United States)
Jarosewich, E. (Smithsonian Institution Washington, DC., United States)
Davis, A. M. (Chicago Univ. IL., United States)
Steele, I. M. (Chicago Univ. IL., United States)
Lipschutz, M. E. (Purdue Univ. West Lafayette, IN., United States)
Wang, M.-S. (Purdue Univ. West Lafayette, IN., United States)
Clayton, R. N. (Chicago Univ. IL., United States)
Mayeda, T. K. (Chicago Univ. IL., United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Lunar and Planetary Inst., Twenty-Fourth Lunar and Planetary Science Conference. Part 3: N-Z
Subject Category
ASTROPHYSICS
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19940015909Analytic PrimaryWorkshop on the Martian Northern Plains: Sedimentological, Periglacial, and Paleoclimatic Evolution19940016163Analytic PrimaryTwenty-Fourth Lunar and Planetary Science Conference. Part 3: N-Z