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Quaternary coastline evolution of Lake Ohrid (Macedonia/Albania) |
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| Authors: | Nadine Hoffmann Klaus Reicherter Christoph Grützner Jochen Hürtgen Andreas Rudersdorf Finn A Viehberg Martin Wessels |
| Institution: | 1. Neotectonics and Natural Hazards Group, RWTH Aachen University, Aachen, 52056, Germany 2. Institute of Geology and Mineralogy, University of Cologne, Cologne, 50923, Germany 3. Institute for Lake Research, LUBW, Argenweg 50/1, 88045, Langenargen, Germany |
| Abstract: | Lake Ohrid (between FYR of Macedonia and Albania), situated in an active tectonic region of the Balkanides, is characterized by N ?? S trending active faults. To reconstruct the Holocene shoreline evolution we investigated the coastline using sediment cores and geophysical methods to image sedimentary and tectonic structures. We revealed areas of differing sedimentation regimes. The plains north and south of the lake are dominated by clastic input related to climate variations and uplift/erosion, whereas the steep western and eastern margins are controlled by recent tectonics. Furthermore, no evidence for a much higher lake-level during the Holocene was found in the plains north and south of the lake, except rare temporary floodings. This is supported by mappings of the limestone cliffs around Lake Ohrid, which yielded no evidence for abrasional platforms or notches as indicators for past highstands. |
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