Molecular study of insoluble organic matter in Kainsaz CO3 carbonaceous chondrite: Comparison with CI and CM IOM .
Kainsaz CO3 insoluble organic matter (IOM) was studied using Curie point pyrolysis, electronic paramagnetic resonance (EPR), and high-resolution transmission electron microscopy (HRTEM) to determine the effect of thermal metamorphism on molecular chondritic fingerprints. Pyrolysis released a very lo...
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Meteoritics & Planetary Science Archives
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ftunivarizonaojs:oai:journals.uair.arizona.edu:article/15606 2023-05-15T18:30:05+02:00 Molecular study of insoluble organic matter in Kainsaz CO3 carbonaceous chondrite: Comparison with CI and CM IOM . REMUSAT, L. GUILLOU, C. LE ROUZAUD, J.-N. BINET, L. DERENNE, S. ROBERT, F. 2008-01-01 application/pdf https://journals.uair.arizona.edu/index.php/maps/article/view/15606 eng eng Meteoritics & Planetary Science Archives https://journals.uair.arizona.edu/index.php/maps/article/view/15606/15594 https://journals.uair.arizona.edu/index.php/maps/article/view/15606 Meteoritics & Planetary Science Archives; Vol 43, No 7 (2008); 1099-1111 1945-5100 1086-9379 Transmission electron microscopy (TEM);insoluble Organic matter;Electronic Paramagnetic Resonance (EPR);Thermal stress info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2008 ftunivarizonaojs 2020-11-14T17:53:01Z Kainsaz CO3 insoluble organic matter (IOM) was studied using Curie point pyrolysis, electronic paramagnetic resonance (EPR), and high-resolution transmission electron microscopy (HRTEM) to determine the effect of thermal metamorphism on molecular chondritic fingerprints. Pyrolysis released a very low amount of products that consist of one- and two-ring aromatic units with methyl, dimethyl, and ethyl substituents. Moreover, Kainsaz IOM contains two orders of magnitude fewer radicals than Orgueil, Murchison, and Tagish Lake IOM. In addition, no diradicaloids were found in Kainsaz, although they are thought to constitute a specific signature for weakly organized extraterrestrial organic compounds in contrast to terrestrial ones. HRTEM reveals a very heterogeneous structure, with microporous disordered carbon, mesoporous graphitic carbons and graphite. Graphitization likely occurs and explains the differences between Kainsaz and CI or CM IOM. Heating stress experienced by Kainsaz IOM, on the parent body and/or prior its accretion, is likely responsible for the differences in molecular and structural organizations compared with those of CI and CM IOM. Article in Journal/Newspaper Tagish Journals at the University of Arizona Curie Point ENVELOPE(-63.483,-63.483,-64.833,-64.833) Murchison ENVELOPE(144.250,144.250,-67.317,-67.317) Tagish ENVELOPE(-134.272,-134.272,60.313,60.313) Tagish Lake ENVELOPE(-134.233,-134.233,59.717,59.717) |
institution |
Open Polar |
collection |
Journals at the University of Arizona |
op_collection_id |
ftunivarizonaojs |
language |
English |
topic |
Transmission electron microscopy (TEM);insoluble Organic matter;Electronic Paramagnetic Resonance (EPR);Thermal stress |
spellingShingle |
Transmission electron microscopy (TEM);insoluble Organic matter;Electronic Paramagnetic Resonance (EPR);Thermal stress REMUSAT, L. GUILLOU, C. LE ROUZAUD, J.-N. BINET, L. DERENNE, S. ROBERT, F. Molecular study of insoluble organic matter in Kainsaz CO3 carbonaceous chondrite: Comparison with CI and CM IOM . |
topic_facet |
Transmission electron microscopy (TEM);insoluble Organic matter;Electronic Paramagnetic Resonance (EPR);Thermal stress |
description |
Kainsaz CO3 insoluble organic matter (IOM) was studied using Curie point pyrolysis, electronic paramagnetic resonance (EPR), and high-resolution transmission electron microscopy (HRTEM) to determine the effect of thermal metamorphism on molecular chondritic fingerprints. Pyrolysis released a very low amount of products that consist of one- and two-ring aromatic units with methyl, dimethyl, and ethyl substituents. Moreover, Kainsaz IOM contains two orders of magnitude fewer radicals than Orgueil, Murchison, and Tagish Lake IOM. In addition, no diradicaloids were found in Kainsaz, although they are thought to constitute a specific signature for weakly organized extraterrestrial organic compounds in contrast to terrestrial ones. HRTEM reveals a very heterogeneous structure, with microporous disordered carbon, mesoporous graphitic carbons and graphite. Graphitization likely occurs and explains the differences between Kainsaz and CI or CM IOM. Heating stress experienced by Kainsaz IOM, on the parent body and/or prior its accretion, is likely responsible for the differences in molecular and structural organizations compared with those of CI and CM IOM. |
format |
Article in Journal/Newspaper |
author |
REMUSAT, L. GUILLOU, C. LE ROUZAUD, J.-N. BINET, L. DERENNE, S. ROBERT, F. |
author_facet |
REMUSAT, L. GUILLOU, C. LE ROUZAUD, J.-N. BINET, L. DERENNE, S. ROBERT, F. |
author_sort |
REMUSAT, L. |
title |
Molecular study of insoluble organic matter in Kainsaz CO3 carbonaceous chondrite: Comparison with CI and CM IOM . |
title_short |
Molecular study of insoluble organic matter in Kainsaz CO3 carbonaceous chondrite: Comparison with CI and CM IOM . |
title_full |
Molecular study of insoluble organic matter in Kainsaz CO3 carbonaceous chondrite: Comparison with CI and CM IOM . |
title_fullStr |
Molecular study of insoluble organic matter in Kainsaz CO3 carbonaceous chondrite: Comparison with CI and CM IOM . |
title_full_unstemmed |
Molecular study of insoluble organic matter in Kainsaz CO3 carbonaceous chondrite: Comparison with CI and CM IOM . |
title_sort |
molecular study of insoluble organic matter in kainsaz co3 carbonaceous chondrite: comparison with ci and cm iom . |
publisher |
Meteoritics & Planetary Science Archives |
publishDate |
2008 |
url |
https://journals.uair.arizona.edu/index.php/maps/article/view/15606 |
long_lat |
ENVELOPE(-63.483,-63.483,-64.833,-64.833) ENVELOPE(144.250,144.250,-67.317,-67.317) ENVELOPE(-134.272,-134.272,60.313,60.313) ENVELOPE(-134.233,-134.233,59.717,59.717) |
geographic |
Curie Point Murchison Tagish Tagish Lake |
geographic_facet |
Curie Point Murchison Tagish Tagish Lake |
genre |
Tagish |
genre_facet |
Tagish |
op_source |
Meteoritics & Planetary Science Archives; Vol 43, No 7 (2008); 1099-1111 1945-5100 1086-9379 |
op_relation |
https://journals.uair.arizona.edu/index.php/maps/article/view/15606/15594 https://journals.uair.arizona.edu/index.php/maps/article/view/15606 |
_version_ |
1766213565828562944 |