Our research aims at the reconstruction of environmental processes covering the last 120 million years.
Marine sediments containing microfossils are our most important indicators to identify former paleoclimatic
and paleoeco- logical conditions. The study of interactions between geosphere and biosphere as well as
long-lasting changes of ecosystems and biodiversity will help us to better understand today’s climatic and
ecological conditions and prospective developments.
Our field work is focused on marine Mesozoic and Cenozoic sedimentary sequences in the Himalayas, the
Tibetan Plateau, Tanzania and the Pyrenees. The white chalks of northern Germany are of importance in
the investiga- tion of fossil calcareous dinoflagellates. Water samples for the cultivation of calcareous
dinoflagellates are obtained from ship cruises and coastal areas.
Characterization of sediments and microfos- sils using scanning electron microscopy (SEM with EDX) and
light microscopic methods, including cathodoluminescense and fluores- cence microscopy. Geochemical
analyses (C and O isotopes). Carbonate microfacies analysis. Culturing experiments with calcareous
dinoflagellates under controlled environ- mental conditions.