DataSheet1_On Synchronous Supereruptions.docx
The Youngest Toba Tuff (YTT) supereruption from Toba Caldera in Sumatra at ca. 74,000 years BP is the largest volcanic event recorded in the Pleistocene. Intriguingly, recent radioisotopic dating of the near antipodal Los Chocoyos (LCY) supereruption from the Atitlán caldera in Guatemala finds an id...
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ftfrontimediafig:oai:figshare.com:article/19546180 2023-05-15T16:39:19+02:00 DataSheet1_On Synchronous Supereruptions.docx Alejandro Cisneros de León Tushar Mittal Shanaka L. de Silva Stephen Self Axel K. Schmitt Steffen Kutterolf 2022-04-08T04:11:33Z https://doi.org/10.3389/feart.2022.827252.s001 https://figshare.com/articles/dataset/DataSheet1_On_Synchronous_Supereruptions_docx/19546180 unknown doi:10.3389/feart.2022.827252.s001 https://figshare.com/articles/dataset/DataSheet1_On_Synchronous_Supereruptions_docx/19546180 CC BY 4.0 CC-BY Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Atitlán caldera Toba caldera Los Chocoyos Youngest Toba Tuff Antipode Dataset 2022 ftfrontimediafig https://doi.org/10.3389/feart.2022.827252.s001 2022-04-13T23:09:12Z The Youngest Toba Tuff (YTT) supereruption from Toba Caldera in Sumatra at ca. 74,000 years BP is the largest volcanic event recorded in the Pleistocene. Intriguingly, recent radioisotopic dating of the near antipodal Los Chocoyos (LCY) supereruption from the Atitlán caldera in Guatemala finds an identical age within uncertainties to that of YTT. This opens the question of whether these synchronous supereruptions may be a coincidence or could be a consequence of each other? Using the known eruptive record from the past 2 Myr, we find that the likelihood of having two near antipodal supereruptions (>1,000 km 3 tephra volume) within centuries (<400 years), as suggested by volcanic proxies and annual counting layer chronology in the ice core records, is very small (0.086%), requiring a non-random cause and effect. Considering this analysis, we speculate that one potential physical mechanism that could explain the temporal relationship between these supereruptions is that seismic energy released during YTT eruption focused on the antipodal region, where concentrated stresses ultimately promoted the eruption of the perched LCY magma system (or vice versa). This supereruption “double-whammy” may thus be the more compelling source of the significant environmental impacts often attributed individually to the YTT supereruption. Improving the existing age information of YTT and LCY, and a better understanding of caldera collapse events will enable further testing of the hypothesis that synchronous supereruptions do not result by pure chance. Dataset ice core Frontiers: Figshare |
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Open Polar |
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Frontiers: Figshare |
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ftfrontimediafig |
language |
unknown |
topic |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Atitlán caldera Toba caldera Los Chocoyos Youngest Toba Tuff Antipode |
spellingShingle |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Atitlán caldera Toba caldera Los Chocoyos Youngest Toba Tuff Antipode Alejandro Cisneros de León Tushar Mittal Shanaka L. de Silva Stephen Self Axel K. Schmitt Steffen Kutterolf DataSheet1_On Synchronous Supereruptions.docx |
topic_facet |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Atitlán caldera Toba caldera Los Chocoyos Youngest Toba Tuff Antipode |
description |
The Youngest Toba Tuff (YTT) supereruption from Toba Caldera in Sumatra at ca. 74,000 years BP is the largest volcanic event recorded in the Pleistocene. Intriguingly, recent radioisotopic dating of the near antipodal Los Chocoyos (LCY) supereruption from the Atitlán caldera in Guatemala finds an identical age within uncertainties to that of YTT. This opens the question of whether these synchronous supereruptions may be a coincidence or could be a consequence of each other? Using the known eruptive record from the past 2 Myr, we find that the likelihood of having two near antipodal supereruptions (>1,000 km 3 tephra volume) within centuries (<400 years), as suggested by volcanic proxies and annual counting layer chronology in the ice core records, is very small (0.086%), requiring a non-random cause and effect. Considering this analysis, we speculate that one potential physical mechanism that could explain the temporal relationship between these supereruptions is that seismic energy released during YTT eruption focused on the antipodal region, where concentrated stresses ultimately promoted the eruption of the perched LCY magma system (or vice versa). This supereruption “double-whammy” may thus be the more compelling source of the significant environmental impacts often attributed individually to the YTT supereruption. Improving the existing age information of YTT and LCY, and a better understanding of caldera collapse events will enable further testing of the hypothesis that synchronous supereruptions do not result by pure chance. |
format |
Dataset |
author |
Alejandro Cisneros de León Tushar Mittal Shanaka L. de Silva Stephen Self Axel K. Schmitt Steffen Kutterolf |
author_facet |
Alejandro Cisneros de León Tushar Mittal Shanaka L. de Silva Stephen Self Axel K. Schmitt Steffen Kutterolf |
author_sort |
Alejandro Cisneros de León |
title |
DataSheet1_On Synchronous Supereruptions.docx |
title_short |
DataSheet1_On Synchronous Supereruptions.docx |
title_full |
DataSheet1_On Synchronous Supereruptions.docx |
title_fullStr |
DataSheet1_On Synchronous Supereruptions.docx |
title_full_unstemmed |
DataSheet1_On Synchronous Supereruptions.docx |
title_sort |
datasheet1_on synchronous supereruptions.docx |
publishDate |
2022 |
url |
https://doi.org/10.3389/feart.2022.827252.s001 https://figshare.com/articles/dataset/DataSheet1_On_Synchronous_Supereruptions_docx/19546180 |
genre |
ice core |
genre_facet |
ice core |
op_relation |
doi:10.3389/feart.2022.827252.s001 https://figshare.com/articles/dataset/DataSheet1_On_Synchronous_Supereruptions_docx/19546180 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/feart.2022.827252.s001 |
_version_ |
1766029657515229184 |