New pyrolytic and spectroscopic data on Orgueil and Murchison insoluble organic matter: A different origin than soluble?
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چکیده
منابع مشابه
Spatial Relations between D/h and N Isotopic Anomalies in Orgueil and Murchison Insoluble Organic Matter: a Nanosims Study
Introduction: Most of the organic carbon in Carbonaceous Chondrites (CC) is in the form of Insoluble Organic Matter (IOM). Isotopically, the IOM in CC appears to be highly un-equilibrated: discrete H and N isotopic anomalies-the so-called hotspots-with δ values up to +19400‰ and +1770‰, respectively, are embedded in the bulk IOM, which has average compositions that are lower by a maximum one or...
متن کاملNew Extraterrestrial Signature of the Insoluble Organic Matter of the Orgueil, Murchison and Tagish Lake Meteorites as Revealed by Electron Paramagnetic Resonance
ORGUEIL, MURCHISON AND TAGISH LAKE METEORITES AS REVEALED BY ELECTRON PARAMAGNETIC RESONANCE. L. Binet, D. Gourier, S. Derenne, F. Robert, and I. Ciofini. Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, F-75231 Paris cedex 05, France ([email protected], [email protected], [email protected], [email protected]). Museum National d'Histoire ...
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Introduction Because of a systematic enrichment in deuterium, the insoluble organic molecules (IOM) of the carbonaceous meteorites are generally considered to represent interstellar materials. However, since the D/H ratios in IOM remain much lower than those measured astronomically for organic molecules synthesized in the interstellar medium (ISM), no plausible process has been proposed to acco...
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1990 Acknowledgments: We thank Dr Gordon Cressey and Mike Rumsey of the Natural History Museum, London, for suppling mineral samples for this work. Lunar and Planetary Science XXXVI (2005) 1925.pdf
متن کاملHydropyrolysis of insoluble carbonaceous matter in the Murchison meteorite: New insights into its macromolecular structure
The major organic component of carbonaceous chondrites is a solvent-insoluble, high molecular weight macromolecular material that constitutes at least 70% of the total organic content in these meteorites. Analytical pyrolysis is often used to thermally decompose macromolecular organic matter in an inert atmosphere into lower molecular weight fragments that are more amenable to conventional orga...
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ژورنال
عنوان ژورنال: Geochimica et Cosmochimica Acta
سال: 2005
ISSN: 0016-7037
DOI: 10.1016/j.gca.2005.02.032