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Journal Article

Gradual warming prior to the end‐Permian mass extinction

Authors

Gliwa,  Jana
External Organizations;
GFZ SIMS Publications, Deutsches GeoForschungsZentrum;

/persons/resource/michawi

Wiedenbeck,  Michael
3.1 Inorganic and Isotope Geochemistry, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
GFZ SIMS Publications, Deutsches GeoForschungsZentrum;

Schobben,  Martin
External Organizations;
GFZ SIMS Publications, Deutsches GeoForschungsZentrum;

Ullmann,  Clemenz V.
External Organizations;
GFZ SIMS Publications, Deutsches GeoForschungsZentrum;

Kiessling,  Wolfgang
External Organizations;
GFZ SIMS Publications, Deutsches GeoForschungsZentrum;

Ghaderi,  Abbas
External Organizations;
GFZ SIMS Publications, Deutsches GeoForschungsZentrum;

Struck,  Ulrich
External Organizations;
GFZ SIMS Publications, Deutsches GeoForschungsZentrum;

Korn,  Dieter
External Organizations;
GFZ SIMS Publications, Deutsches GeoForschungsZentrum;

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Fulltext (public)

5013584.pdf
(Publisher version), 16MB

Supplementary Material (public)
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Citation

Gliwa, J., Wiedenbeck, M., Schobben, M., Ullmann, C. V., Kiessling, W., Ghaderi, A., Struck, U., Korn, D. (2022): Gradual warming prior to the end‐Permian mass extinction. - Palaeontology, 65, 5, e12621.
https://doi.org/10.1111/pala.12621


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5013584
Abstract
The biggest known mass extinction in the history of animal life occurred at the Permian–Triassic boundary and has often been linked to global warming. Previous studies have suggested that a geologically rapid (<40 kyr) temperature increase of more than 10°C occurred simultaneously with the main extinction pulse. This hypothesis is challenged by geochemical and palaeontological data indicating profound environmental perturbations and a temperature rise prior to the main extinction. Using secondary ion mass spectrometry (SIMS), we measured oxygen isotope ratios from Changhsingian (late Permian) ostracods of north-western Iran. Our data show that ambient seawater temperature began to rise at least 300 kyr prior to the main extinction event. Gradual warming by approximately 12°C was probably responsible for initial environmental degradation that eventually culminated in the global end-Permian mass extinction.