Articles | Volume 11, issue 12
Clim. Past, 11, 1653–1672, 2015
https://doi.org/10.5194/cp-11-1653-2015

Special issue: Climatic and biotic events of the Paleogene

Clim. Past, 11, 1653–1672, 2015
https://doi.org/10.5194/cp-11-1653-2015

Research article 11 Dec 2015

Research article | 11 Dec 2015

A massive input of coarse-grained siliciclastics in the Pyrenean Basin during the PETM: the missing ingredient in a coeval abrupt change in hydrological regime

V. Pujalte et al.

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Short summary
An abrupt increase in seasonal precipitation during the PETM in the Pyrenean Gulf has been proposed, based on the occurrence of extensive fine-grained siliciclastic deposits. This paper provides evidence that coarse-grained siliciclastics were also delivered, indicative of episodes of intense rainy intervals in an otherwise semiarid PETM climate. Further, evidence is presented that PETM kaolinites were most likely resedimented from Cretaceous lateritic profiles developed in the basement.