A Pronounced Spike in Ocean Productivity Triggered by the Chicxulub Impact
There is increasing evidence linking the mass-extinction event at the Cretaceous-Paleogene boundary to an asteroid impact near Chicxulub, Mexico. Here we use model simulations to explore the combined effect of sulfate aerosols, carbon dioxide and dust from the impact on the oceans and the marine bio...
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2021
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fttibhannoverren:oai:oa.tib.eu:123456789/8037 2024-09-15T18:27:50+00:00 A Pronounced Spike in Ocean Productivity Triggered by the Chicxulub Impact Brugger, Julia Feulner, Georg Hofmann, Matthias Petri, Stefan 2021 application/pdf https://oa.tib.eu/renate/handle/123456789/8037 https://doi.org/10.34657/7078 eng eng Hoboken, NJ : Wiley ESSN:1944-8007 DOI:https://doi.org/10.1029/2020GL092260 https://oa.tib.eu/renate/handle/123456789/8037 https://doi.org/10.34657/7078 CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ frei zugänglich ddc:550 Biospherics Carbon dioxide Geology Sulfur compounds Carbon isotopes Chicxulub impact Combined effect Cretaceous-Paleogene boundary Mass extinction events Sulfate aerosols Temperature decrease Terrestrial biosphere Oceanography aerosol algal bloom carbon isotope empirical analysis mass extinction ocean acidification sulfate Mexico [North America] Asteroidea status-type:publishedVersion doc-type:Article doc-type:Text 2021 fttibhannoverren https://doi.org/10.34657/707810.1029/2020GL092260 2024-07-03T23:33:53Z There is increasing evidence linking the mass-extinction event at the Cretaceous-Paleogene boundary to an asteroid impact near Chicxulub, Mexico. Here we use model simulations to explore the combined effect of sulfate aerosols, carbon dioxide and dust from the impact on the oceans and the marine biosphere in the immediate aftermath of the impact. We find a strong temperature decrease, a brief algal bloom caused by nutrients from both the deep ocean and the projectile, and moderate surface ocean acidification. Comparing the modeled longer-term post-impact warming and changes in carbon isotopes with empirical evidence points to a substantial release of carbon from the terrestrial biosphere. Overall, our results shed light on the decades to centuries after the Chicxulub impact which are difficult to resolve with proxy data. Article in Journal/Newspaper Ocean acidification Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover) |
institution |
Open Polar |
collection |
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover) |
op_collection_id |
fttibhannoverren |
language |
English |
topic |
ddc:550 Biospherics Carbon dioxide Geology Sulfur compounds Carbon isotopes Chicxulub impact Combined effect Cretaceous-Paleogene boundary Mass extinction events Sulfate aerosols Temperature decrease Terrestrial biosphere Oceanography aerosol algal bloom carbon isotope empirical analysis mass extinction ocean acidification sulfate Mexico [North America] Asteroidea |
spellingShingle |
ddc:550 Biospherics Carbon dioxide Geology Sulfur compounds Carbon isotopes Chicxulub impact Combined effect Cretaceous-Paleogene boundary Mass extinction events Sulfate aerosols Temperature decrease Terrestrial biosphere Oceanography aerosol algal bloom carbon isotope empirical analysis mass extinction ocean acidification sulfate Mexico [North America] Asteroidea Brugger, Julia Feulner, Georg Hofmann, Matthias Petri, Stefan A Pronounced Spike in Ocean Productivity Triggered by the Chicxulub Impact |
topic_facet |
ddc:550 Biospherics Carbon dioxide Geology Sulfur compounds Carbon isotopes Chicxulub impact Combined effect Cretaceous-Paleogene boundary Mass extinction events Sulfate aerosols Temperature decrease Terrestrial biosphere Oceanography aerosol algal bloom carbon isotope empirical analysis mass extinction ocean acidification sulfate Mexico [North America] Asteroidea |
description |
There is increasing evidence linking the mass-extinction event at the Cretaceous-Paleogene boundary to an asteroid impact near Chicxulub, Mexico. Here we use model simulations to explore the combined effect of sulfate aerosols, carbon dioxide and dust from the impact on the oceans and the marine biosphere in the immediate aftermath of the impact. We find a strong temperature decrease, a brief algal bloom caused by nutrients from both the deep ocean and the projectile, and moderate surface ocean acidification. Comparing the modeled longer-term post-impact warming and changes in carbon isotopes with empirical evidence points to a substantial release of carbon from the terrestrial biosphere. Overall, our results shed light on the decades to centuries after the Chicxulub impact which are difficult to resolve with proxy data. |
format |
Article in Journal/Newspaper |
author |
Brugger, Julia Feulner, Georg Hofmann, Matthias Petri, Stefan |
author_facet |
Brugger, Julia Feulner, Georg Hofmann, Matthias Petri, Stefan |
author_sort |
Brugger, Julia |
title |
A Pronounced Spike in Ocean Productivity Triggered by the Chicxulub Impact |
title_short |
A Pronounced Spike in Ocean Productivity Triggered by the Chicxulub Impact |
title_full |
A Pronounced Spike in Ocean Productivity Triggered by the Chicxulub Impact |
title_fullStr |
A Pronounced Spike in Ocean Productivity Triggered by the Chicxulub Impact |
title_full_unstemmed |
A Pronounced Spike in Ocean Productivity Triggered by the Chicxulub Impact |
title_sort |
pronounced spike in ocean productivity triggered by the chicxulub impact |
publisher |
Hoboken, NJ : Wiley |
publishDate |
2021 |
url |
https://oa.tib.eu/renate/handle/123456789/8037 https://doi.org/10.34657/7078 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
ESSN:1944-8007 DOI:https://doi.org/10.1029/2020GL092260 https://oa.tib.eu/renate/handle/123456789/8037 https://doi.org/10.34657/7078 |
op_rights |
CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ frei zugänglich |
op_doi |
https://doi.org/10.34657/707810.1029/2020GL092260 |
_version_ |
1810469111635902464 |