Holocene lake-level fluctuations in Jura and the northern subalpine ranges, France: regional pattern and climatic implications |
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| Authors: | MICHEL MAGNY |
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| Institution: | Laboratoire de Chrono-Ecologie, Facultédes Sciences, La Bouioie, 25030 Besançon, France |
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| Abstract: | Holocene lake-level fluctuations in Jurassian and French subalpine lakes are reconstructed using sedimentological analysis, and a regional pattern of palaeohydrological changes is put forward. Major transgressive phases culminated at about 8500 BP, 6500 BP, 4800 BP, 3500–2300 BP and 450 BP. (1) The synchroncity of Holocene lake-level changes demonstrated for a large number of lakes, (2) close correlations attested between certain lakes and (3) the coincidence between rises in lake-levels in Jura and French subalpine ranges, and glacier advances in Swiss and Austrian Alps argue for a climatic control of these Holocene lake-level fluctuations. |
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