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Rhenium-osmium isotope systematics of ordinary chondrites and iron meteoritesUsing negative thermal ionization mass spectrometry, Re and Os abundances were determined by isotope dilution and Os-187/Os-186 measured in 11 ordinary chondrites, and also in 1 IIB and 3 IIIB irons. In addition, Os-186/Os-188 and Os-189/Os-188 ratios were precisely determined for 3 unspiked ordinary chondrites as a means of constraining the intensity of any neutron irradiation these meteorites may have experienced.
Document ID
19940016381
Document Type
Conference Paper
Authors
Walker, R. J. (Maryland Univ. College Park, MD, United States)
Morgan, J. W. (Geological Survey Reston, VA., United States)
Horan, M. F. (Geological Survey Reston, VA., United States)
Grossman, J. N. (Geological Survey Reston, VA., 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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