Modul E

Noble gases as proxy for vertical fluid transport in the sediment column and lake level fluctuations

The concentrations of atmospheric noble gases in the pore waters of the cores will be used to geochemically reconstruct - for the first time ever - lake levels and salinity on time scales of 1-100 kyr. In addition, the long cores from Lake Van will allow determination of the in-situ terrestrial He-gradient as a function of depth within a sediment column of several hundred meters, which will yield insights into physical transport mechanisms of terrigenic (and mantle) Helium through the uppermost part of the continental crust.

Contact persons

Rolf Kipfer, Yama Tomonaga