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Publications
Helmholtz Centre Potsdam
GFZ German Research Centre for Geosciences Abstract (EDOC: 255)Controls on deposition in an intracontinental basin - an example from
the Rotliegend of Northeast Germany
H. Rieke, T. McCann, R. Ondrak and J.F.W. Negendank
GeoForschungsZentrum Potsdam, Telegrafenberg, 14473 Potsdam Germany
The intracontinental NE German Basin is located between the stable
Precambrian Baltic Shield to the North and the
Caledonian/Variscan-influenced areas to the south. It forms part of the
southern Rotliegend Basin, a series of interconnected basins extending
more than 1500 km from England to Poland. The predominantly continental
Upper Rotliegend strata were deposited under arid to semiarid climate
conditions. New stratigraphical models for the Rotliegend have been
suggested for the British, Dutch and West German sectors of the Southern
Rotliegend basin correlating facies distribution and cyclicity. The
existing lithostratigraphical subdivision for Eastern Germany is based
solely on tectonically-generated cyclothems with internal climate-driven
cyclicity. Detailed examination of more than 3 km of Rotliegend core
material across the NE German Basin indicates that the preserved strata
were not only the product of a shift in climate, or a tectonic event in
the hinterland. The depositional environment resulted from the interplay
of various mechanisms (water table level, source area lithology,
morphology, position within the basin, fluviatile sediment load,
frequency of climate events, deflation etc.). Thus, the
paleogeographical and environmental specificity of the NE German Basin
requires an independent conceptual model. Evaluation of the relative
importance of each controlling factor allows the complex interactions
between them to be examined, leading to the development of a predictive
model for arid continental depositional systems. (2000): Controls on deposition in an intracontinental basin - an example from; the Rotliegend of Northeast Germany. Sediment 2000, 116. |
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