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The 4.2 ka Event in the Euro-Mediterranean Region—A Study from the MISTRALS/PALEOMEX Program

  • Bassem JalaliEmail author
  • Marie-Alexandrine Sicre
Chapter
Part of the Advances in Science, Technology & Innovation book series (ASTI)

Abstract

High-resolution records documenting the 4.2 ka event (from 4200 to 3900 cal yr BP) are scarce. Archaeological and paleoenvironmental data from continental archives suggest that this event is coincident with a megadrought in the eastern Mediterranean basin. Here, we present an unprecedented high-resolution alkenone-based sea surface temperature (SST) record from the northwestern Mediterranean Sea showing a stepwise cooling of ca. 2 °C between 4400 and 3800 yr BP, which shares similarities with speleothem records from central Europe and the Mediterranean region. Our data suggest a reorganization of the North Atlantic atmospheric circulation during this event.

Keywords

Alkenone SSTs 4.2 ka event Mediterranean Atmospheric circulation 

Notes

Acknowledgments

We thank the MISTRALS/PALEOMEX program and ANR HAMOC (ANR-13-BS06-0003) for financial support.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Faculté Des Sciences de SfaxGEOGLOB, Université de SfaxSfaxTunisia
  2. 2.CNRS-IRD-MNHN, LOCEAN LaboratorySorbonne Universités (UPMC, Univ Paris 06)ParisFrance

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