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...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Hoboken, NJ : Wiley
2021
|
Subjects: | |
Online Access: | https://oa.tib.eu/renate/handle/123456789/8037 https://doi.org/10.34657/7078 |
id |
ftleibnizopen:oai:oai.leibnizopen.de:GS_ReYsBBwLIz6xGuteb |
---|---|
record_format |
openpolar |
spelling |
ftleibnizopen:oai:oai.leibnizopen.de:GS_ReYsBBwLIz6xGuteb 2023-11-12T04:23:44+01:00 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 CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ Geophysical research letters : GRL 48 (2021), Nr. 12 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 550 article Text 2021 ftleibnizopen https://doi.org/10.34657/7078 2023-10-30T00:17:58Z 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. publishedVersion Article in Journal/Newspaper Ocean acidification Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftleibnizopen |
language |
English |
topic |
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 550 |
spellingShingle |
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 550 Brugger, Julia Feulner, Georg Hofmann, Matthias Petri, Stefan A Pronounced Spike in Ocean Productivity Triggered by the Chicxulub Impact |
topic_facet |
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 550 |
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. publishedVersion |
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_source |
Geophysical research letters : GRL 48 (2021), Nr. 12 |
op_rights |
CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.34657/7078 |
_version_ |
1782338415377776640 |