Deglaciation of the Vosges dated using 10Be
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Keywords (English)metoda 10Be
A deglacial study shows the development of 6 push moraines at low altitude (- 600 m a.s.l.) in the Vosgian area. Dated according to IOBeat 11.5,10,6,9.7,9.0,8.3, and 7.9 Ica, they indicate the occurrence, after the last glacial maximum (LGM) and well into the early Holocene, of frequent climatic oscillations on a nnllenial scale. Furthermore, a linear relation between IOBeexposure ages and glacially eroded landscape elevation is evidenced. It allows the identification of 5 different paleotopographies implying rapid transitions from glacially eroded to tluvially eroded landscapes. GIobal cIimatic events such as LGM, Heinrich events H2, H3, Dansgaard-Oeschger interstadial IS2, IS4, IS5, IS6 are recognized as probable pacemakers in such landscape change.