Early and late Holocene water-level fluctuations of Lake Annecy, France: sediment and pollen evidence and climatic implications |
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| Authors: | Michel Magny André Marguet Gilles Hervé Chassepot Yves Billaud |
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| Institution: | (1) Laboratoire de Chrono-écologie, UMR-CNRS, 6565, Faculté des Sciences et Techniques, 16 route de Gray, 25030 Besançon cedex, France;(2) Département des Recherches Archéologiques Subaquatiques et Sous-Marines, 58 bis avenue des Marquisats, 74000 Annecy, France |
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| Abstract: | Early and late Holocene water-level changes in Lake Annecy, France, were reconstructed from a sediment sequence from Annecy. Two early Holocene successive rises in lake level at ca. 8900-8700 BP are recorded. Another increase in lake level, beginning at ca. 780 BP, is documented. The higher lake-level conditions in Lake Annecy during the 9th millennium BP, i.e. between the Preboreal oscillation and the 8200 yr event, appear to coincide with a more widespread cooling period which has been recorded in western Europe, in the Greenland ice-sheet and the North Atlantic ocean. The rise in lake level at ca. 780 BP can be related to the early Little Ice Age. |
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| Keywords: | Holocene lake-level fluctuations pollen palaeoclimates French Pre-Alps North Atlantic area |
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