Department of Geoenergy and Storage, Geological Survey of Denmark and
Greenland (GEUS), Øster Voldgade 10, 1350 Copenhagen, Denmark
Department of
Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, Landsdiep 4, 1797 SZ 't Horntje,
Texel, the Netherlands
National Oceanography Centre, European Way, SO14 3ZH, Southampton,
United Kingdom
Stefan Schouten
Department of
Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, Landsdiep 4, 1797 SZ 't Horntje,
Texel, the Netherlands
Department of Earth Sciences, Faculty of Geosciences, Utrecht
University, Vening Meinesz building A, Princetonlaan 8a, 3584 CB Utrecht,
the Netherlands
We provide a sea surface temperature record from the Labrador Sea (ODP Site 647) based on organic geochemical proxies across the late Eocene and early Oligocene. Our study reveals heterogenic cooling of the Atlantic. The cooling of the North Atlantic is difficult to reconcile with the active Atlantic Meridional Overturning Circulation (AMOC). We discuss possible explanations like uncertainty in the data, paleogeography and atmospheric CO2 boundary conditions, model weaknesses, and AMOC activity.
We provide a sea surface temperature record from the Labrador Sea (ODP Site 647) based on...