Extreme Deuterium Excesses in Ultracarbonaceous Micrometeorites from Central Antarctic Snow
Primitive interplanetary dust is expected to contain the earliest solar system components, including minerals and organic matter. We have recovered, from central Antarctic snow, ultracarbonaceous micrometeorites whose organic matter contains extreme deuterium (D) excesses ( 10 to 30 times terrestria...
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Online Access: | https://hal.in2p3.fr/in2p3-00610349 https://doi.org/10.1126/science.1184832 |
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ftinsu:oai:HAL:in2p3-00610349v1 2024-02-11T09:56:23+01:00 Extreme Deuterium Excesses in Ultracarbonaceous Micrometeorites from Central Antarctic Snow Duprat, J. Dobrica, E. Engrand, C. Aleon, J. Marrocchi, Y. Mostefaoui, S. Meibom, A. Leroux, H. Rouzaud, J.N. Gounelle, M. Robert, F. Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM) Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Minéralogie et Cosmochimie du Muséum (LMCM) Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS) Unité Matériaux et Transformations - UMR 8207 (UMET) Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure de Chimie de Lille (ENSCL)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) Laboratoire de géologie de l'ENS (LGENS) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) 2010 https://hal.in2p3.fr/in2p3-00610349 https://doi.org/10.1126/science.1184832 en eng HAL CCSD American Association for the Advancement of Science (AAAS) info:eu-repo/semantics/altIdentifier/doi/10.1126/science.1184832 info:eu-repo/semantics/altIdentifier/pmid/20448182 in2p3-00610349 https://hal.in2p3.fr/in2p3-00610349 doi:10.1126/science.1184832 PUBMED: 20448182 WOS: 000277357100037 ISSN: 0036-8075 EISSN: 1095-9203 Science https://hal.in2p3.fr/in2p3-00610349 Science, 2010, 328, pp.742-745. ⟨10.1126/science.1184832⟩ INTERPLANETARY DUST PARTICLES MOLECULAR-CLOUD MATERIAL ORGANIC-MATTER ISOTOPIC COMPOSITIONS PRIMITIVE METEORITES COMET 81P/WILD-2 INTERSTELLAR MINERALOGY CHEMISTRY CHONDRITES [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] info:eu-repo/semantics/article Journal articles 2010 ftinsu https://doi.org/10.1126/science.1184832 2024-01-24T17:24:02Z Primitive interplanetary dust is expected to contain the earliest solar system components, including minerals and organic matter. We have recovered, from central Antarctic snow, ultracarbonaceous micrometeorites whose organic matter contains extreme deuterium (D) excesses ( 10 to 30 times terrestrial values), extending over hundreds of square micrometers. We identified crystalline minerals embedded in the micrometeorite organic matter, which suggests that this organic matter reservoir could have formed within the solar system itself rather than having direct interstellar heritage. The high D/H ratios, the high organic matter content, and the associated minerals favor an origin from the cold regions of the protoplanetary disk. The masses of the particles range from a few tenths of a microgram to a few micrograms, exceeding by more than an order of magnitude those of the dust fragments from comet 81P/Wild 2 returned by the Stardust mission. Article in Journal/Newspaper Antarc* Antarctic Institut national des sciences de l'Univers: HAL-INSU Antarctic Science 328 5979 742 745 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
INTERPLANETARY DUST PARTICLES MOLECULAR-CLOUD MATERIAL ORGANIC-MATTER ISOTOPIC COMPOSITIONS PRIMITIVE METEORITES COMET 81P/WILD-2 INTERSTELLAR MINERALOGY CHEMISTRY CHONDRITES [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] |
spellingShingle |
INTERPLANETARY DUST PARTICLES MOLECULAR-CLOUD MATERIAL ORGANIC-MATTER ISOTOPIC COMPOSITIONS PRIMITIVE METEORITES COMET 81P/WILD-2 INTERSTELLAR MINERALOGY CHEMISTRY CHONDRITES [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] Duprat, J. Dobrica, E. Engrand, C. Aleon, J. Marrocchi, Y. Mostefaoui, S. Meibom, A. Leroux, H. Rouzaud, J.N. Gounelle, M. Robert, F. Extreme Deuterium Excesses in Ultracarbonaceous Micrometeorites from Central Antarctic Snow |
topic_facet |
INTERPLANETARY DUST PARTICLES MOLECULAR-CLOUD MATERIAL ORGANIC-MATTER ISOTOPIC COMPOSITIONS PRIMITIVE METEORITES COMET 81P/WILD-2 INTERSTELLAR MINERALOGY CHEMISTRY CHONDRITES [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] |
description |
Primitive interplanetary dust is expected to contain the earliest solar system components, including minerals and organic matter. We have recovered, from central Antarctic snow, ultracarbonaceous micrometeorites whose organic matter contains extreme deuterium (D) excesses ( 10 to 30 times terrestrial values), extending over hundreds of square micrometers. We identified crystalline minerals embedded in the micrometeorite organic matter, which suggests that this organic matter reservoir could have formed within the solar system itself rather than having direct interstellar heritage. The high D/H ratios, the high organic matter content, and the associated minerals favor an origin from the cold regions of the protoplanetary disk. The masses of the particles range from a few tenths of a microgram to a few micrograms, exceeding by more than an order of magnitude those of the dust fragments from comet 81P/Wild 2 returned by the Stardust mission. |
author2 |
Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM) Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Minéralogie et Cosmochimie du Muséum (LMCM) Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS) Unité Matériaux et Transformations - UMR 8207 (UMET) Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure de Chimie de Lille (ENSCL)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) Laboratoire de géologie de l'ENS (LGENS) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) |
format |
Article in Journal/Newspaper |
author |
Duprat, J. Dobrica, E. Engrand, C. Aleon, J. Marrocchi, Y. Mostefaoui, S. Meibom, A. Leroux, H. Rouzaud, J.N. Gounelle, M. Robert, F. |
author_facet |
Duprat, J. Dobrica, E. Engrand, C. Aleon, J. Marrocchi, Y. Mostefaoui, S. Meibom, A. Leroux, H. Rouzaud, J.N. Gounelle, M. Robert, F. |
author_sort |
Duprat, J. |
title |
Extreme Deuterium Excesses in Ultracarbonaceous Micrometeorites from Central Antarctic Snow |
title_short |
Extreme Deuterium Excesses in Ultracarbonaceous Micrometeorites from Central Antarctic Snow |
title_full |
Extreme Deuterium Excesses in Ultracarbonaceous Micrometeorites from Central Antarctic Snow |
title_fullStr |
Extreme Deuterium Excesses in Ultracarbonaceous Micrometeorites from Central Antarctic Snow |
title_full_unstemmed |
Extreme Deuterium Excesses in Ultracarbonaceous Micrometeorites from Central Antarctic Snow |
title_sort |
extreme deuterium excesses in ultracarbonaceous micrometeorites from central antarctic snow |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.in2p3.fr/in2p3-00610349 https://doi.org/10.1126/science.1184832 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ISSN: 0036-8075 EISSN: 1095-9203 Science https://hal.in2p3.fr/in2p3-00610349 Science, 2010, 328, pp.742-745. ⟨10.1126/science.1184832⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1126/science.1184832 info:eu-repo/semantics/altIdentifier/pmid/20448182 in2p3-00610349 https://hal.in2p3.fr/in2p3-00610349 doi:10.1126/science.1184832 PUBMED: 20448182 WOS: 000277357100037 |
op_doi |
https://doi.org/10.1126/science.1184832 |
container_title |
Science |
container_volume |
328 |
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5979 |
container_start_page |
742 |
op_container_end_page |
745 |
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1790602739660619776 |