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Noble gases and shock effects in the Odessa octahedriteNoble gas contents and shock effects have been studied in 21 Odessa irons from known geographic locations. Cosmogenic He-3, Ne-21, Ar-38 contents and He-3/Ne-21 ratios vary by factors of 62, 91, 68, and 1.55, respectively, while Ne-22/Ne-21 ratios are virtually constant at 1.07. The samples fall into two groups differing by a factor of 4.1 in exposure age, 1000 in source mass, or some combination of these. Three samples show significant shock effects, two of them to above 130 kbar, probably arising during terrestrial impact from the crater-forming explosion. As in Canyon Diablo plains specimens, noble gas contents do not correlate with siting or shock.
Document ID
19760056067
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Herzog, G. F.
(Rutgers University New Brunswick, N.J., United States)
Lipschutz, M. E.
(Rutgers Univ. New Brunswick, NJ, United States)
Jain, A. V.
(Purdue University West Lafayette, Ind., United States)
Rodman, T. E.
(Odessa Meteoritical Society, Inc. Odessa, Tex., United States)
Date Acquired
August 8, 2013
Publication Date
July 10, 1976
Publication Information
Publication: Journal of Geophysical Research
Volume: 81
Subject Category
Lunar And Planetary Exploration
Accession Number
76A39033
Funding Number(s)
CONTRACT_GRANT: NGL-15-005-140
Distribution Limits
Public
Copyright
Other

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