The Chicxulub impact produced a powerful global tsunami
The Chicxulub crater is the site of an asteroid impact linked with the Cretaceous-Paleogene (K-Pg) mass extinction at similar to 66 Ma. This asteroid struck in shallow water and caused a large tsunami. Here we present the first global simulation of the Chicxulub impact tsunami from initial contact o...
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Online Access: | https://doi.org/10.1029/2021AV000627 |
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ftncar:oai:drupal-site.org:articles_25776 2024-04-14T08:15:51+00:00 The Chicxulub impact produced a powerful global tsunami Range, Molly M. (author) Arbic, Brian K. (author) Johnson, Brandon C. (author) Moore, Theodore C. (author) Titov, Vasily (author) Adcroft, Alistair J. (author) Ansong, Joseph K. (author) Hollis, Christopher J. (author) Ritsema, Jeroen (author) Scotese, Christopher R. (author) Wang, He (author) 2022-10-04 https://doi.org/10.1029/2021AV000627 en eng AGU Advances--AGU Advances--2576-604X--2576-604X Replication Data for: The Chicxulub Impact Produced a Powerful Global Tsunami--10.7910/DVN/GWOFIO articles:25776 doi:10.1029/2021AV000627 ark:/85065/d75t3q8c Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. article Text 2022 ftncar https://doi.org/10.1029/2021AV000627 2024-03-21T18:00:26Z The Chicxulub crater is the site of an asteroid impact linked with the Cretaceous-Paleogene (K-Pg) mass extinction at similar to 66 Ma. This asteroid struck in shallow water and caused a large tsunami. Here we present the first global simulation of the Chicxulub impact tsunami from initial contact of the projectile to global propagation. We use a hydrocode to model the displacement of water, sediment, and crust over the first 10 min, and a shallow-water ocean model from that point onwards. The impact tsunami was up to 30,000 times more energetic than the 26 December 2004 Indian Ocean tsunami, one of the largest tsunamis in the modern record. Flow velocities exceeded 20 cm/s along shorelines worldwide, as well as in open-ocean regions in the North Atlantic, equatorial South Atlantic, southern Pacific and the Central American Seaway, and therefore likely scoured the seafloor and disturbed sediments over 10,000 km from the impact origin. The distribution of erosion and hiatuses in the uppermost Cretaceous marine sediments are consistent with model results. NA16NWS4620043 NA18NWS4620043B Article in Journal/Newspaper North Atlantic OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Pacific Indian AGU Advances 3 5 |
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Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
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ftncar |
language |
English |
description |
The Chicxulub crater is the site of an asteroid impact linked with the Cretaceous-Paleogene (K-Pg) mass extinction at similar to 66 Ma. This asteroid struck in shallow water and caused a large tsunami. Here we present the first global simulation of the Chicxulub impact tsunami from initial contact of the projectile to global propagation. We use a hydrocode to model the displacement of water, sediment, and crust over the first 10 min, and a shallow-water ocean model from that point onwards. The impact tsunami was up to 30,000 times more energetic than the 26 December 2004 Indian Ocean tsunami, one of the largest tsunamis in the modern record. Flow velocities exceeded 20 cm/s along shorelines worldwide, as well as in open-ocean regions in the North Atlantic, equatorial South Atlantic, southern Pacific and the Central American Seaway, and therefore likely scoured the seafloor and disturbed sediments over 10,000 km from the impact origin. The distribution of erosion and hiatuses in the uppermost Cretaceous marine sediments are consistent with model results. NA16NWS4620043 NA18NWS4620043B |
author2 |
Range, Molly M. (author) Arbic, Brian K. (author) Johnson, Brandon C. (author) Moore, Theodore C. (author) Titov, Vasily (author) Adcroft, Alistair J. (author) Ansong, Joseph K. (author) Hollis, Christopher J. (author) Ritsema, Jeroen (author) Scotese, Christopher R. (author) Wang, He (author) |
format |
Article in Journal/Newspaper |
title |
The Chicxulub impact produced a powerful global tsunami |
spellingShingle |
The Chicxulub impact produced a powerful global tsunami |
title_short |
The Chicxulub impact produced a powerful global tsunami |
title_full |
The Chicxulub impact produced a powerful global tsunami |
title_fullStr |
The Chicxulub impact produced a powerful global tsunami |
title_full_unstemmed |
The Chicxulub impact produced a powerful global tsunami |
title_sort |
chicxulub impact produced a powerful global tsunami |
publishDate |
2022 |
url |
https://doi.org/10.1029/2021AV000627 |
geographic |
Pacific Indian |
geographic_facet |
Pacific Indian |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
AGU Advances--AGU Advances--2576-604X--2576-604X Replication Data for: The Chicxulub Impact Produced a Powerful Global Tsunami--10.7910/DVN/GWOFIO articles:25776 doi:10.1029/2021AV000627 ark:/85065/d75t3q8c |
op_rights |
Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
op_doi |
https://doi.org/10.1029/2021AV000627 |
container_title |
AGU Advances |
container_volume |
3 |
container_issue |
5 |
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1796314328204312576 |