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Carbon, hydrogen and nitrogen isotopes in solvent-extractable organic matter from carbonaceous chondritesCCl4 and CH3OH solvent extractions were performed on the Murray, Murchison, Orgueil and Renazzo carbonaceous chondrites. Delta-D values of +300-+500% are found in the case of the CH3OH-soluble organic matter. The combined C, H and N isotope data makes it unlikely that the CH3OH-soluble components are derivable from, or simply related to, the insoluble organic polymer found in the same meteorites. A relation between the event that formed hydrous minerals in CI1 and CM2 meteorites and the introduction of water- and methanol-soluble organic compounds is suggested. Organic matter soluble in CCl4 has no N, and delta-C-13 values are lower than for CH3OH-soluble phases. It is concluded that there either are large isotopic fractionations for carbon and hydrogen between different soluble organic phases, or the less polar components are partially of terrestrial origin.
Document ID
19820038294
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Becker, R. H.
(California Inst. of Tech. Pasadena, CA, United States)
Epstein, S.
(California Institute of Technology Pasadena, CA, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1982
Publication Information
Publication: Geochimica et Cosmochimica Acta
Volume: 46
Subject Category
Lunar And Planetary Exploration
Accession Number
82A21829
Funding Number(s)
CONTRACT_GRANT: NGL-05-002-190
Distribution Limits
Public
Copyright
Other

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