Martine Paterne

Learn More
Sea surface reservoir ages must be known to establish a common chronological framework for marine, continental, and cryospheric paleoproxies, and are crucial for understanding ocean-continent climatic relationships and the paleoventilation of the ocean. Radiocarbon dates of planktonic foraminifera and tephra contemporaneously deposited over Mediterranean(More)
Fifty-one 40Ar/39Ar laser heating analyses of sanidine crystals in the C-13 tephra layer, recovered out of a piston core raised from 3000 m depth in the Tyrrhenian Sea, yielded apparent ages between 25 and 112 ka. Twenty-four of these measurements define an age probability maximum and generate an isochron of 41.1 þ 2.1 ka (2c) with a 40Ar/36Ar intercept of(More)
Terrigenous and marine biomarkers were investigated in a core o€ Northwest Africa in the Northeast Atlantic (25 N, 16 W, 1445 m depth) to assess changes in the sedimentation pattern of organic carbon (OC) over the last 150 kyears. Alkenone derived temperatures recorded a warming of 4.5 C during the last deglaciation. n-Alkanol Mass Accumulation Rates (MAR)(More)
Slowly accumulated (<5cm kyr '1) and rapidly accumulated (5-20 cm kyr -1) sediments have been compared to define the initiation and termnation times of the most recent sapropel (S1) in the eastern Mediterranean Sea. The Ba/A1 ratio has been employed as a more persistent index of productivity than C•g. Accelerator mass spectrometry radiocarbon dating of(More)
  • 1