Insight } Research: SAMPLE– Research on the Continental Margins
Issue 02/11
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SAMPLE – a prime example of interdisciplinary research A guest post by Prof. Michael Weber (GFZ, Potsdam)
or lowering processes in the land mass also determine the erosion rate. Analysis of sediment cores and seismic data show how this relationship works in detail and what the quantitative proportions of the individual processes are. The deposition of sediment into the South Atlantic also has an impact on the marine circulation patterns in the region. The way in which regional and national trends have changed is examined by
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Ryberg, GFZ, Potsdam
The South Atlantic is the focus of the DFG priority program SAMPLE (SPP 1357: South Atlantic Margin Processes and Links with Onshore Evolution). Here, where 200 million years ago a new ocean opened up, the interactions between tectonics, climate, sedimentation and sea currents are interdisciplinarily investigated. Researchers from the German Research Centre for Geosciences (GFZ), the Federal Institute for Geosciences and Natural Resources (BGR), the Alfred Wegener Institute for Polar and Marine Research (AWI) and the Leibniz Institute for Marine Sciences (IFMGEOMAR) and various universities are involved here. An important aspect of this research is the investigation of dynamic processes in the mantle. Information on the composition and the mechanisms of magma ascent are essential for understanding the breakup of Gondwana and thus the origin of the Atlantic. To date, surfacing crustal material and hot spots in the South Atlantic deliver various questions in this regard. In addition, the structures of the crust and upper mantle are to be investigated. The quantitative determination of lithology, stratigraphy and structure of today's coastal areas in a 3D model will help in reconstructing the geological evolution. The erosion of rocks on land and transport of the resulting sediments gives an insight into the climatic history of the region. The interaction between climate variation and tectonic processes is of particular interest. In addition to the variations in rainfall, elevation