Computer Science
Scientific paper
Aug 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986gecoa..50.1599h&link_type=abstract
Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 50, Aug. 1986, p. 1599-1609.
Computer Science
2
Carbonaceous Chondrites, Hydrogen Isotopes, Meteoritic Composition, Oxygen Isotopes, Mass Spectroscopy, Murchison Meteorite, Orgueil Meteorite, Outgassing
Scientific paper
Oxygen isotope compositions of the carbon-rich, acid-resistant fraction of four carbonaceous chondrites (Orgueil, Renazzo, Murchison, and Murray) are reported, along with results of experiments wherein bulk samples of Orgueil and Renazzo were selectively outgassed. Variations of the whole rock isotopic compositions of Orgueil and Renazzo with the temperature of vacuum outgassing show that the water released, presumably from hydroxyl radicals bound to the phyllosilicates, has an O-isotope composition distinct from that of the rest of the silicates. The acid residues are only slightly different from the whole rocks and from terrestrial compositions in their O-16 content. A hydrogen-oxygen isotope relation is found, which can be interpreted in terms of low temperature reactions in the primitive solar nebula.
Halbout Jérôme
Javoy Marc
Robert Frédéric
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