JACOB , Jérémy

We report on the detection, in a sediment core drilled in Lake Le Bourget (French Alps), of a fossil molecule (miliacin) that was synthesized by broomcorn millet cultivated in the watershed, and then exported to the sediment. The variation in abundance of this molecule allows us reconstructing the history of millet cultivation around Lake Le...

Prédire les impacts d'un probable Changement Global nécessite la compréhension des interactions passées entre le climat, les milieux et les sociétés. Les sédiments lacustres constituent de ce point de vue des archives de choix, à conditions de disposer de marqueurs univoques permettant de décrire l'évolution des variations du climat, des...

Two well-dated ca Holocene-long sedimentary sequences from deepest parts of Lake Bourget provide new insights onto the evolution of erosion patterns at a regional scale in NW European Alps. The combination of high resolution geochemistry e XRF core scanning, calibrated by 150 punctual measurements e and isotope geochemistry ( 3Nd) of the...