The Eltanin asteroid impact: possible South Pacific palaeomegatsunami footprint and potential implications for the Pliocene–Pleistocene transition
Abstract Large asteroid impacts are rare, and those into the deep ocean are rarer still. The Eltanin asteroid impact around 2.51 ± 0.07 Ma occurred at a time of great climatic and geological change associated with the Pliocene–Pleistocene boundary. Numerical models of the event indicate that a megat...
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crwiley:10.1002/jqs.2571 2024-06-02T07:57:28+00:00 The Eltanin asteroid impact: possible South Pacific palaeomegatsunami footprint and potential implications for the Pliocene–Pleistocene transition Goff, James Chagué‐Goff, Catherine Archer, Michael Dominey‐Howes, Dale Turney, Chris 2012 http://dx.doi.org/10.1002/jqs.2571 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2571 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2571 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 27, issue 7, page 660-670 ISSN 0267-8179 1099-1417 journal-article 2012 crwiley https://doi.org/10.1002/jqs.2571 2024-05-03T11:00:05Z Abstract Large asteroid impacts are rare, and those into the deep ocean are rarer still. The Eltanin asteroid impact around 2.51 ± 0.07 Ma occurred at a time of great climatic and geological change associated with the Pliocene–Pleistocene boundary. Numerical models of the event indicate that a megatsunami was generated, although there is debate concerning its magnitude and the region‐wide extent of its influence. We summarise the existing evidence for possible Eltanin megatsunami deposits in Antarctica, Chile and New Zealand, while also examining other potential sites from several locations, mainly around the South Pacific region. In reviewing these data we note that these events were unfolding at the same time as those associated with the Pliocene–Pleistocene boundary and, as such, most of the geological evidence from that time has a climatic interpretation. The potential climatic and geological ramifications of the Eltanin asteroid impact, however, have failed to be considered by most researchers studying this time period. Although we are not advocating that all geological activity at that time is connected with the Eltanin asteroid impact, it raises interesting questions about the role potentially played by such catastrophic events in contributing to or even triggering epochal transitions. Copyright © 2012 John Wiley & Sons, Ltd. Article in Journal/Newspaper Antarc* Antarctica Wiley Online Library New Zealand Pacific Journal of Quaternary Science 27 7 660 670 |
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Wiley Online Library |
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English |
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Abstract Large asteroid impacts are rare, and those into the deep ocean are rarer still. The Eltanin asteroid impact around 2.51 ± 0.07 Ma occurred at a time of great climatic and geological change associated with the Pliocene–Pleistocene boundary. Numerical models of the event indicate that a megatsunami was generated, although there is debate concerning its magnitude and the region‐wide extent of its influence. We summarise the existing evidence for possible Eltanin megatsunami deposits in Antarctica, Chile and New Zealand, while also examining other potential sites from several locations, mainly around the South Pacific region. In reviewing these data we note that these events were unfolding at the same time as those associated with the Pliocene–Pleistocene boundary and, as such, most of the geological evidence from that time has a climatic interpretation. The potential climatic and geological ramifications of the Eltanin asteroid impact, however, have failed to be considered by most researchers studying this time period. Although we are not advocating that all geological activity at that time is connected with the Eltanin asteroid impact, it raises interesting questions about the role potentially played by such catastrophic events in contributing to or even triggering epochal transitions. Copyright © 2012 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Goff, James Chagué‐Goff, Catherine Archer, Michael Dominey‐Howes, Dale Turney, Chris |
spellingShingle |
Goff, James Chagué‐Goff, Catherine Archer, Michael Dominey‐Howes, Dale Turney, Chris The Eltanin asteroid impact: possible South Pacific palaeomegatsunami footprint and potential implications for the Pliocene–Pleistocene transition |
author_facet |
Goff, James Chagué‐Goff, Catherine Archer, Michael Dominey‐Howes, Dale Turney, Chris |
author_sort |
Goff, James |
title |
The Eltanin asteroid impact: possible South Pacific palaeomegatsunami footprint and potential implications for the Pliocene–Pleistocene transition |
title_short |
The Eltanin asteroid impact: possible South Pacific palaeomegatsunami footprint and potential implications for the Pliocene–Pleistocene transition |
title_full |
The Eltanin asteroid impact: possible South Pacific palaeomegatsunami footprint and potential implications for the Pliocene–Pleistocene transition |
title_fullStr |
The Eltanin asteroid impact: possible South Pacific palaeomegatsunami footprint and potential implications for the Pliocene–Pleistocene transition |
title_full_unstemmed |
The Eltanin asteroid impact: possible South Pacific palaeomegatsunami footprint and potential implications for the Pliocene–Pleistocene transition |
title_sort |
eltanin asteroid impact: possible south pacific palaeomegatsunami footprint and potential implications for the pliocene–pleistocene transition |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1002/jqs.2571 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2571 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2571 |
geographic |
New Zealand Pacific |
geographic_facet |
New Zealand Pacific |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Journal of Quaternary Science volume 27, issue 7, page 660-670 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.2571 |
container_title |
Journal of Quaternary Science |
container_volume |
27 |
container_issue |
7 |
container_start_page |
660 |
op_container_end_page |
670 |
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1800740618928914432 |