Paroxysmal Deccan Eruptions linked to End-Cretaceous Mass Extinction Article Swipe
Thierry Adatte
,
Gerta Keller
,
Jorge E. Spangenberg
,
Paula Mateo
,
Jahnavi Punekar
,
Johannes Monkenbusch
,
Nicolas Thibault
,
Sigal Abramovich
,
Blair Schoene
,
Michael P. Eddy
,
Kyle M. Samperton
,
S. Khadri
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.5194/egusphere-egu21-10700
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.5194/egusphere-egu21-10700
<p>The Chicxulub impact in Mexico and Deccan volcanism in India are both linked to the end-Cretaceous mass extinction but the relative timing of the impact, volcanic eruptions, and environmental changes remain controversial, precluding a full assessment of their respective roles. Mercury anomalies within the stratigraphic record have recently been proposed as atmospheric fallout of continental large igneous provinces (LIPs), and these anomalies are associated with all five major mass extinctions in Earth’s history. If this proxy is robust, it could provide a record of volcanism directly correlated to mass extinctions and in the case of the End-extinction, the Chicxulub impact. To test this hypothesis, we analyzed mercury in the late Maastrichtian from the base of C29r to the Cretaceous-Paleogene boundary (KPB) n the astronomically tuned Elles section in Tunisia, and correlate this chemostratigraphic record with recent high-precision U-Pb geochronology of Deccan volcanism. Our results support that Hg is a robust indicator of LIP volcanism, and directly links Deccan volcanism to rapid global climate changes, ocean acidification and increasing environmental stress during the last 320-340 kyr of the Maastrichtian. Furthermore, our time-resolved Hg record and U-Pb resolved eruption volumes reveal paroxysmal volcanic eruptions (~30% by volume) during the final 35 kyr leading up to the KPB mass extinction.</p>
Related Topics
Concepts
Extinction event
Volcanism
Deccan Traps
Geology
Volcano
Cretaceous
Paleontology
Paleogene
Large igneous province
Flood basalt
Geologic record
Earth science
Igneous rock
Tectonics
Magmatism
Biological dispersal
Sociology
Demography
Population
Metadata
- Type
- preprint
- Language
- en
- Landing Page
- https://doi.org/10.5194/egusphere-egu21-10700
- OA Status
- gold
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3160567695
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3160567695Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.5194/egusphere-egu21-10700Digital Object Identifier
- Title
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Paroxysmal Deccan Eruptions linked to End-Cretaceous Mass ExtinctionWork title
- Type
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preprintOpenAlex work type
- Language
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enPrimary language
- Publication year
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2021Year of publication
- Publication date
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2021-03-04Full publication date if available
- Authors
-
Thierry Adatte, Gerta Keller, Jorge E. Spangenberg, Paula Mateo, Jahnavi Punekar, Johannes Monkenbusch, Nicolas Thibault, Sigal Abramovich, Blair Schoene, Michael P. Eddy, Kyle M. Samperton, S. KhadriList of authors in order
- Landing page
-
https://doi.org/10.5194/egusphere-egu21-10700Publisher landing page
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.5194/egusphere-egu21-10700Direct OA link when available
- Concepts
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Extinction event, Volcanism, Deccan Traps, Geology, Volcano, Cretaceous, Paleontology, Paleogene, Large igneous province, Flood basalt, Geologic record, Earth science, Igneous rock, Tectonics, Magmatism, Biological dispersal, Sociology, Demography, PopulationTop concepts (fields/topics) attached by OpenAlex
- Cited by
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0Total citation count in OpenAlex
- Related works (count)
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10Other works algorithmically related by OpenAlex
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