A search for presolar organic matter in meteorite

Details A search for presolar organic matter in meteorite A search for presolar organic matter in meteorite

Feb 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985georl..12...73y&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 12, Feb. 1985, p. 73-76.

Physics

1

Carbonaceous Chondrites, Chemical Evolution, Meteoritic Composition, Organic Compounds, Solar System, Allende Meteorite, Carbon Isotopes, Carbon 13, Deuterium, Hydrogen Isotopes, Murchison Meteorite, Protostars, Meteorites, Organic Matter, Samples, Meteorite, Element Ratios, Carbon, H Chondrites, Ochansk, Plainview, Gladstone, Odessa, Data, Experiments, Ia Meteorites, Isotopic Ratios, Hydrogen, Concentration, Comparisons

Scientific paper

The D/H ratios and the 13C/12C ratios of acid-insoluble organic matter of 4 meteorites, Ochansk (H4), Plainview (H5), Gladstone (H6) and Odessa (IA), were measured. δD values for hydrogen extracted by stepwise combustion were negative, down to -28%. δ13C values were also negative except in the case of the carbon coming off at the highest temperature steps for Plainview and Odessa meteorites. The concentrations of 13C-rich carbon were 3 - 5 orders of magnitude smaller than those found in Murchison meteorite, suggesting that relic grains of stellar condensates were mostly destroyed in the meteorites examined.

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