Isotopengeochemische und vegetationsgeschichtliche Untersuchungen von Warm-/Kaltzeit-Uebergaengen auf der Grundlage von limnischen Sedimentfolgen und fossilen Hoelzern Mittel- und Osteuropas Abschlussbericht

Paleoclimatological investigations were carried out in six different sub-projects (Plinz, Thuringia - early holocene; former Aschersleben Lake, central Germany - postglacial/holocene; Groebern, Neumark and Parsau, central Germany - eem; and isotope dendroclimatology - Kola peninsula, holocene). Proxydata were obtained on the basis of the stable isotope composition of sediment constitutents like carbonate, molluscs, organic matter or wood cellulose, supplemented by radiocarbon dating. In the high-resolution Plinz profile, environmental changes in the early holocene were established. Studies of the profile of Aschersleben Lake showed that this object is well suited for paleoecological and paleoclimatological studies of the last glacial cycle. The isotope dta of the Groebern, Neumark and Parsau profiles all reflect a relative stable climate during the last interglacial period in central Germany. The investigations of subfossil pine wood from lakes in the Kola tundra regions showed that the forest border was located much farther to the North during the climate optimum in the middle holocene (about 7000 - 3500 BP). The stable isotope values of "1"4C-dated samples suggest a more dried climate during that period as compared to the past 1000 years.SIGLEAvailable from TIB Hannover: F03B124 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman