Sedimentary deposits from terrestrial environments (lakes, moraines, dunes, loess, and permafrost) and the polar oceans represent unique palaeoclimate archives used for the reconstruction of the late Pleistocene to Holocene environmental history of the periglacial and offshore realm. The inference of palaeoenvironmental scenarios is based on sedimentological, geochemical, and micropaleontological data (diatoms, chironomids, ostracods, pollen). The above picture gives an impression of a field campaign to Lake Bolshoi Toko in the Stanovoy Mountains (Yakutia) that took place in spring 2013 (photo gallery). The ice-based tripod, equipped with a piston corer, was used for the recovery of up to 6 metre long lacustrine sediment cores from the lake bottom. Other study areas are:


• SibLake - Eastern Siberian Lakes, Russia (Info)

• Kamchatka Peninsula, Russia (Info)

• Qinghai-Tibetan Plateau, China (Info)

• Gobi Desert, China (Info)

• Bering Sea & North Pacific

• Southern Ocean & East Antarctica


The studies contribute to the AWI research programme PACES II, Topic 3, WP1: "Circumpolar climate variability and global teleconnections at seasonal to orbital time scales".




Principal Investigator

Bernhard Diekmann



Boris Biskaborn, Post-Doc Researcher

Georg Schwamborn, Senior Scientist

Larisa Nazarova, Senior Scientist