Cargando…

Impact glasses from Belize represent tektites from the Pleistocene Pantasma impact crater in Nicaragua

Tektites are terrestrial impact-generated glasses that are ejected long distance (up to 11,000 km), share unique characteristics and have a poorly understood formation process. Only four tektite strewn-fields are known, and three of them are sourced from known impact craters. Here we show that the r...

Descripción completa

Detalles Bibliográficos
Autores principales: Rochette, Pierre, Beck, Pierre, Bizzarro, Martin, Braucher, Régis, Cornec, Jean, Debaille, Vinciane, Devouard, Bertrand, Gattacceca, Jérôme, Jourdan, Fred, Moustard, Fabien, Moynier, Frédéric, Nomade, Sébastien, Reynard, Bruno
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7611520/
https://www.ncbi.nlm.nih.gov/pubmed/34409303
http://dx.doi.org/10.1038/s43247-021-00155-1
_version_ 1783605281259782144
author Rochette, Pierre
Beck, Pierre
Bizzarro, Martin
Braucher, Régis
Cornec, Jean
Debaille, Vinciane
Devouard, Bertrand
Gattacceca, Jérôme
Jourdan, Fred
Moustard, Fabien
Moynier, Frédéric
Nomade, Sébastien
Reynard, Bruno
author_facet Rochette, Pierre
Beck, Pierre
Bizzarro, Martin
Braucher, Régis
Cornec, Jean
Debaille, Vinciane
Devouard, Bertrand
Gattacceca, Jérôme
Jourdan, Fred
Moustard, Fabien
Moynier, Frédéric
Nomade, Sébastien
Reynard, Bruno
author_sort Rochette, Pierre
collection PubMed
description Tektites are terrestrial impact-generated glasses that are ejected long distance (up to 11,000 km), share unique characteristics and have a poorly understood formation process. Only four tektite strewn-fields are known, and three of them are sourced from known impact craters. Here we show that the recently discovered Pantasma impact crater (14 km diameter) in Nicaragua is the source of an impact glass strewn-field documented in Belize 530 km away. Their cogenesis is documented by coincidental ages, at 804 ± 9 ka, as well as consistent elemental compositions and isotopic ratios. The Belize impact glass share many characteristics with known tektites but also present several peculiar features. We propose that these glasses represent a previously unrecognized tektite strewn-field. These discoveries shed new light on the tektite formation process, which may be more common than previously claimed, as most known Pleistocene >10 km diameter cratering events have generated tektites.
format Online
Article
Text
id pubmed-7611520
institution National Center for Biotechnology Information
language English
publishDate 2021
record_format MEDLINE/PubMed
spelling pubmed-76115202021-08-17 Impact glasses from Belize represent tektites from the Pleistocene Pantasma impact crater in Nicaragua Rochette, Pierre Beck, Pierre Bizzarro, Martin Braucher, Régis Cornec, Jean Debaille, Vinciane Devouard, Bertrand Gattacceca, Jérôme Jourdan, Fred Moustard, Fabien Moynier, Frédéric Nomade, Sébastien Reynard, Bruno Commun Earth Environ Article Tektites are terrestrial impact-generated glasses that are ejected long distance (up to 11,000 km), share unique characteristics and have a poorly understood formation process. Only four tektite strewn-fields are known, and three of them are sourced from known impact craters. Here we show that the recently discovered Pantasma impact crater (14 km diameter) in Nicaragua is the source of an impact glass strewn-field documented in Belize 530 km away. Their cogenesis is documented by coincidental ages, at 804 ± 9 ka, as well as consistent elemental compositions and isotopic ratios. The Belize impact glass share many characteristics with known tektites but also present several peculiar features. We propose that these glasses represent a previously unrecognized tektite strewn-field. These discoveries shed new light on the tektite formation process, which may be more common than previously claimed, as most known Pleistocene >10 km diameter cratering events have generated tektites. 2021-05-17 /pmc/articles/PMC7611520/ /pubmed/34409303 http://dx.doi.org/10.1038/s43247-021-00155-1 Text en https://creativecommons.org/licenses/by/4.0/This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Rochette, Pierre
Beck, Pierre
Bizzarro, Martin
Braucher, Régis
Cornec, Jean
Debaille, Vinciane
Devouard, Bertrand
Gattacceca, Jérôme
Jourdan, Fred
Moustard, Fabien
Moynier, Frédéric
Nomade, Sébastien
Reynard, Bruno
Impact glasses from Belize represent tektites from the Pleistocene Pantasma impact crater in Nicaragua
title Impact glasses from Belize represent tektites from the Pleistocene Pantasma impact crater in Nicaragua
title_full Impact glasses from Belize represent tektites from the Pleistocene Pantasma impact crater in Nicaragua
title_fullStr Impact glasses from Belize represent tektites from the Pleistocene Pantasma impact crater in Nicaragua
title_full_unstemmed Impact glasses from Belize represent tektites from the Pleistocene Pantasma impact crater in Nicaragua
title_short Impact glasses from Belize represent tektites from the Pleistocene Pantasma impact crater in Nicaragua
title_sort impact glasses from belize represent tektites from the pleistocene pantasma impact crater in nicaragua
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7611520/
https://www.ncbi.nlm.nih.gov/pubmed/34409303
http://dx.doi.org/10.1038/s43247-021-00155-1
work_keys_str_mv AT rochettepierre impactglassesfrombelizerepresenttektitesfromthepleistocenepantasmaimpactcraterinnicaragua
AT beckpierre impactglassesfrombelizerepresenttektitesfromthepleistocenepantasmaimpactcraterinnicaragua
AT bizzarromartin impactglassesfrombelizerepresenttektitesfromthepleistocenepantasmaimpactcraterinnicaragua
AT braucherregis impactglassesfrombelizerepresenttektitesfromthepleistocenepantasmaimpactcraterinnicaragua
AT cornecjean impactglassesfrombelizerepresenttektitesfromthepleistocenepantasmaimpactcraterinnicaragua
AT debaillevinciane impactglassesfrombelizerepresenttektitesfromthepleistocenepantasmaimpactcraterinnicaragua
AT devouardbertrand impactglassesfrombelizerepresenttektitesfromthepleistocenepantasmaimpactcraterinnicaragua
AT gattaccecajerome impactglassesfrombelizerepresenttektitesfromthepleistocenepantasmaimpactcraterinnicaragua
AT jourdanfred impactglassesfrombelizerepresenttektitesfromthepleistocenepantasmaimpactcraterinnicaragua
AT moustardfabien impactglassesfrombelizerepresenttektitesfromthepleistocenepantasmaimpactcraterinnicaragua
AT moynierfrederic impactglassesfrombelizerepresenttektitesfromthepleistocenepantasmaimpactcraterinnicaragua
AT nomadesebastien impactglassesfrombelizerepresenttektitesfromthepleistocenepantasmaimpactcraterinnicaragua
AT reynardbruno impactglassesfrombelizerepresenttektitesfromthepleistocenepantasmaimpactcraterinnicaragua