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Heterogeneities in the solar nebulaOxygen isotopic compositions of the high-temperatue phases in carbonaceous chondrites define a mixing line with an O-16 rich component and show little superimposed chemical isotope fractionation. Within a single inclusion in Allende, variations of delta O-18 and delta O-17 of 39% are found. The ordinary chondrites are slightly displaced from the terrestrial fractionation trend, implying that at least 0.2% of the oxygen in terrestrial rocks was derived from the O-16 rich component.
Document ID
19750006603
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Clayton, R. (Chicago Univ. Chicago, IL, United States)
Grossman, L. (Chicago Univ. Chicago, IL, United States)
Mayeda, T. K. (Chicago Univ. Chicago, IL, United States)
Onuma, N. (Tokyo Gakugei Univ.)
Date Acquired
September 3, 2013
Publication Date
January 1, 1974
Publication Information
Publisher: NASA
Subject Category
Lunar And Planetary Exploration
Report/Patent Number
NASA-CR-141243
REPT-204
Report Number: NASA-CR-141243
Report Number: REPT-204
Meeting Information
Meeting: Soviet-Am. Conf. on the Cosmochemistry of the Moon and Planets
Location: Moscow
Country: Soviet Union
Start Date: June 4, 1974
End Date: June 8, 1974
Accession Number
75N14675
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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