Noble gas isotopes reveal degassing-derived eruptions at Deception Island (Antarctica): implications for the current high levels of volcanic activity
Deception Island is one of the most active volcanoes in Antarctica with more than twenty explosive eruptions in the past two centuries. Any future volcanic eruption(s) is a serious concern for scientists and tourists, will be detrimental to marine ecosystems and could have an impact to global oceano...
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ftpubmed:oai:pubmedcentral.nih.gov:9666546 2023-05-15T13:40:01+02:00 Noble gas isotopes reveal degassing-derived eruptions at Deception Island (Antarctica): implications for the current high levels of volcanic activity Álvarez-Valero, Antonio M. Sumino, Hirochika Caracausi, Antonio Sánchez, Antonio Polo Burgess, Ray Geyer, Adelina Borrajo, Javier Rodríguez, José A. Lozano Albert, Helena Aulinas, Meritxell Núñez-Guerrero, Elena 2022-11-15 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9666546/ https://doi.org/10.1038/s41598-022-23991-3 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9666546/ http://dx.doi.org/10.1038/s41598-022-23991-3 © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Sci Rep Article Text 2022 ftpubmed https://doi.org/10.1038/s41598-022-23991-3 2022-11-20T02:57:19Z Deception Island is one of the most active volcanoes in Antarctica with more than twenty explosive eruptions in the past two centuries. Any future volcanic eruption(s) is a serious concern for scientists and tourists, will be detrimental to marine ecosystems and could have an impact to global oceanographic processes. Currently, it is not possible to carry-out low and high frequency volcanic gas monitoring at Deception Island because of the arduous climatic conditions and its remote location. Helium, neon and argon isotopes measured in olivine samples of the main eruptive events (pre-, syn- and post caldera) offer insights into the processes governing its volcanic history. Our results show that: (i) ascending primitive magmas outgassed volatiles with a MORB-like helium isotopic signature ((3)He/(4)He ratio); and (ii) variations in the He isotope ratio, as well as intensive degassing evidenced by fractionated (4)He/(40)Ar(*) values, occurred before the beginning of the main eruptive episodes. Our results show how the pre-eruptive noble gas signals of volcanic activity is an important step toward a better understanding of the magmatic dynamics and has the potential to improve eruption forecasting. Text Antarc* Antarctica Deception Island PubMed Central (PMC) Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) Scientific Reports 12 1 |
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Article Álvarez-Valero, Antonio M. Sumino, Hirochika Caracausi, Antonio Sánchez, Antonio Polo Burgess, Ray Geyer, Adelina Borrajo, Javier Rodríguez, José A. Lozano Albert, Helena Aulinas, Meritxell Núñez-Guerrero, Elena Noble gas isotopes reveal degassing-derived eruptions at Deception Island (Antarctica): implications for the current high levels of volcanic activity |
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Deception Island is one of the most active volcanoes in Antarctica with more than twenty explosive eruptions in the past two centuries. Any future volcanic eruption(s) is a serious concern for scientists and tourists, will be detrimental to marine ecosystems and could have an impact to global oceanographic processes. Currently, it is not possible to carry-out low and high frequency volcanic gas monitoring at Deception Island because of the arduous climatic conditions and its remote location. Helium, neon and argon isotopes measured in olivine samples of the main eruptive events (pre-, syn- and post caldera) offer insights into the processes governing its volcanic history. Our results show that: (i) ascending primitive magmas outgassed volatiles with a MORB-like helium isotopic signature ((3)He/(4)He ratio); and (ii) variations in the He isotope ratio, as well as intensive degassing evidenced by fractionated (4)He/(40)Ar(*) values, occurred before the beginning of the main eruptive episodes. Our results show how the pre-eruptive noble gas signals of volcanic activity is an important step toward a better understanding of the magmatic dynamics and has the potential to improve eruption forecasting. |
format |
Text |
author |
Álvarez-Valero, Antonio M. Sumino, Hirochika Caracausi, Antonio Sánchez, Antonio Polo Burgess, Ray Geyer, Adelina Borrajo, Javier Rodríguez, José A. Lozano Albert, Helena Aulinas, Meritxell Núñez-Guerrero, Elena |
author_facet |
Álvarez-Valero, Antonio M. Sumino, Hirochika Caracausi, Antonio Sánchez, Antonio Polo Burgess, Ray Geyer, Adelina Borrajo, Javier Rodríguez, José A. Lozano Albert, Helena Aulinas, Meritxell Núñez-Guerrero, Elena |
author_sort |
Álvarez-Valero, Antonio M. |
title |
Noble gas isotopes reveal degassing-derived eruptions at Deception Island (Antarctica): implications for the current high levels of volcanic activity |
title_short |
Noble gas isotopes reveal degassing-derived eruptions at Deception Island (Antarctica): implications for the current high levels of volcanic activity |
title_full |
Noble gas isotopes reveal degassing-derived eruptions at Deception Island (Antarctica): implications for the current high levels of volcanic activity |
title_fullStr |
Noble gas isotopes reveal degassing-derived eruptions at Deception Island (Antarctica): implications for the current high levels of volcanic activity |
title_full_unstemmed |
Noble gas isotopes reveal degassing-derived eruptions at Deception Island (Antarctica): implications for the current high levels of volcanic activity |
title_sort |
noble gas isotopes reveal degassing-derived eruptions at deception island (antarctica): implications for the current high levels of volcanic activity |
publisher |
Nature Publishing Group UK |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9666546/ https://doi.org/10.1038/s41598-022-23991-3 |
long_lat |
ENVELOPE(-60.633,-60.633,-62.950,-62.950) |
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Deception Island |
geographic_facet |
Deception Island |
genre |
Antarc* Antarctica Deception Island |
genre_facet |
Antarc* Antarctica Deception Island |
op_source |
Sci Rep |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9666546/ http://dx.doi.org/10.1038/s41598-022-23991-3 |
op_rights |
© The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41598-022-23991-3 |
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Scientific Reports |
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12 |
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1 |
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