The identification of airbursts in the past: Insights from the BIT-58 layer
International audience Airbursts are estimated to be the most frequent type ofdestructive impact events. Yet, confirmation of these events is elusive, resulting in a major gap in the impact record of Earth. The recent discovery of igneous chondritic spherules produced during a new type of touchdown...
Published in: | Earth and Planetary Science Letters |
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Format: | Article in Journal/Newspaper |
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Online Access: | https://hal.science/hal-04450010 https://hal.science/hal-04450010/document https://hal.science/hal-04450010/file/1-s2.0-S0012821X23005721-main.pdf https://doi.org/10.1016/j.epsl.2023.118562 |
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ftcollegfrance:oai:HAL:hal-04450010v1 2024-06-23T07:46:24+00:00 The identification of airbursts in the past: Insights from the BIT-58 layer van Ginneken, Matthias Harvey, Ralph Goderis, Steven Artemieva, Natalia Boslough, Mark Maeda, Ryoga Gattacceca, Jérôme Folco, Luigi Yamaguchi, Akira Wozniakiewicz, Penelope Sonzogni, Corinne Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) 2024-02 https://hal.science/hal-04450010 https://hal.science/hal-04450010/document https://hal.science/hal-04450010/file/1-s2.0-S0012821X23005721-main.pdf https://doi.org/10.1016/j.epsl.2023.118562 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.epsl.2023.118562 hal-04450010 https://hal.science/hal-04450010 https://hal.science/hal-04450010/document https://hal.science/hal-04450010/file/1-s2.0-S0012821X23005721-main.pdf doi:10.1016/j.epsl.2023.118562 WOS: 001157206100001 info:eu-repo/semantics/OpenAccess ISSN: 0012-821X Earth and Planetary Science Letters https://hal.science/hal-04450010 Earth and Planetary Science Letters, 2024, 627, pp.118562. ⟨10.1016/j.epsl.2023.118562⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2024 ftcollegfrance https://doi.org/10.1016/j.epsl.2023.118562 2024-06-13T23:35:42Z International audience Airbursts are estimated to be the most frequent type ofdestructive impact events. Yet, confirmation of these events is elusive, resulting in a major gap in the impact record of Earth. The recent discovery of igneous chondritic spherules produced during a new type of touchdown airburst 430 thousand years (kyr) ago over Antarctica, in which a projectile vapor jet interacts with the Antarctic ice sheet, provided the first trace of such an impact in the geological record. In terms of petrology and geochemistry, particles constituting the BIT-58 dust horizon, which was found in surface ice at near Allan Hills in Antarctica, are almost identical to those produced 430 kyr ago. We demonstrate here that BIT-58 particles were indeed formed during a touchdown event between 2.3 and 2.7 million years (Myr) ago. This represents the oldest record of an airburst on Earth identified to date. Slight geochemical differences with 430 kyr old airburst spherules provide additional constraints on spherule condensation in large airburst plumes. Finding confirmation of airbursts in the paleorecord can provide insight into the frequency of the most hazardous impacts and, thus, has implications for planetary defence. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet Collège de France: HAL Allan Hills ENVELOPE(159.667,159.667,-76.717,-76.717) Antarctic The Antarctic Earth and Planetary Science Letters 627 118562 |
institution |
Open Polar |
collection |
Collège de France: HAL |
op_collection_id |
ftcollegfrance |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] van Ginneken, Matthias Harvey, Ralph Goderis, Steven Artemieva, Natalia Boslough, Mark Maeda, Ryoga Gattacceca, Jérôme Folco, Luigi Yamaguchi, Akira Wozniakiewicz, Penelope Sonzogni, Corinne The identification of airbursts in the past: Insights from the BIT-58 layer |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience Airbursts are estimated to be the most frequent type ofdestructive impact events. Yet, confirmation of these events is elusive, resulting in a major gap in the impact record of Earth. The recent discovery of igneous chondritic spherules produced during a new type of touchdown airburst 430 thousand years (kyr) ago over Antarctica, in which a projectile vapor jet interacts with the Antarctic ice sheet, provided the first trace of such an impact in the geological record. In terms of petrology and geochemistry, particles constituting the BIT-58 dust horizon, which was found in surface ice at near Allan Hills in Antarctica, are almost identical to those produced 430 kyr ago. We demonstrate here that BIT-58 particles were indeed formed during a touchdown event between 2.3 and 2.7 million years (Myr) ago. This represents the oldest record of an airburst on Earth identified to date. Slight geochemical differences with 430 kyr old airburst spherules provide additional constraints on spherule condensation in large airburst plumes. Finding confirmation of airbursts in the paleorecord can provide insight into the frequency of the most hazardous impacts and, thus, has implications for planetary defence. |
author2 |
Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
format |
Article in Journal/Newspaper |
author |
van Ginneken, Matthias Harvey, Ralph Goderis, Steven Artemieva, Natalia Boslough, Mark Maeda, Ryoga Gattacceca, Jérôme Folco, Luigi Yamaguchi, Akira Wozniakiewicz, Penelope Sonzogni, Corinne |
author_facet |
van Ginneken, Matthias Harvey, Ralph Goderis, Steven Artemieva, Natalia Boslough, Mark Maeda, Ryoga Gattacceca, Jérôme Folco, Luigi Yamaguchi, Akira Wozniakiewicz, Penelope Sonzogni, Corinne |
author_sort |
van Ginneken, Matthias |
title |
The identification of airbursts in the past: Insights from the BIT-58 layer |
title_short |
The identification of airbursts in the past: Insights from the BIT-58 layer |
title_full |
The identification of airbursts in the past: Insights from the BIT-58 layer |
title_fullStr |
The identification of airbursts in the past: Insights from the BIT-58 layer |
title_full_unstemmed |
The identification of airbursts in the past: Insights from the BIT-58 layer |
title_sort |
identification of airbursts in the past: insights from the bit-58 layer |
publisher |
HAL CCSD |
publishDate |
2024 |
url |
https://hal.science/hal-04450010 https://hal.science/hal-04450010/document https://hal.science/hal-04450010/file/1-s2.0-S0012821X23005721-main.pdf https://doi.org/10.1016/j.epsl.2023.118562 |
long_lat |
ENVELOPE(159.667,159.667,-76.717,-76.717) |
geographic |
Allan Hills Antarctic The Antarctic |
geographic_facet |
Allan Hills Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet |
op_source |
ISSN: 0012-821X Earth and Planetary Science Letters https://hal.science/hal-04450010 Earth and Planetary Science Letters, 2024, 627, pp.118562. ⟨10.1016/j.epsl.2023.118562⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.epsl.2023.118562 hal-04450010 https://hal.science/hal-04450010 https://hal.science/hal-04450010/document https://hal.science/hal-04450010/file/1-s2.0-S0012821X23005721-main.pdf doi:10.1016/j.epsl.2023.118562 WOS: 001157206100001 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.epsl.2023.118562 |
container_title |
Earth and Planetary Science Letters |
container_volume |
627 |
container_start_page |
118562 |
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1802645657922568192 |