Articles | Volume 16, issue 5
Clim. Past, 16, 1889–1899, 2020
https://doi.org/10.5194/cp-16-1889-2020
Clim. Past, 16, 1889–1899, 2020
https://doi.org/10.5194/cp-16-1889-2020

Research article 19 Oct 2020

Research article | 19 Oct 2020

Life and death in the Chicxulub impact crater: a record of the Paleocene–Eocene Thermal Maximum

Vann Smith et al.

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ED: Publish subject to minor revisions (review by editor) (10 Aug 2020) by Alberto Reyes
AR by Vann Smith on behalf of the Authors (13 Aug 2020)  Author's response    Manuscript
ED: Publish as is (01 Sep 2020) by Alberto Reyes
AR by Vann Smith on behalf of the Authors (03 Sep 2020)  Author's response    Manuscript
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Short summary
A rare tropical record of the Paleocene–Eocene Thermal Maximum, a potential analog for future global warming, has been identified from post-impact strata in the Chicxulub crater. Multiproxy analysis has yielded evidence for increased humidity, increased pollen and fungi input, salinity stratification, bottom water anoxia, and sea surface temperatures up to 38 °C. Pollen and plant spore assemblages indicate a nearby diverse coastal shrubby tropical forest resilient to hyperthermal conditions.