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Glacier extents within Briançonnais Alps (southern French Alps) from the Last Glacial Maximum to the Holocene: chronological synthesis

Etienne Cossart 1 Didier Bourlès 2 Regis Braucher 2 Julien Carcaillet 3 Monique Fort 1 Lionel Siame 2
1 PRODIG - Pôle de recherche pour l'organisation et la diffusion de l'information géographique
2 CEREGE - Centre européen de recherche et d'enseignement des géosciences de l'environnement
3 Tectonique reliefs et bassins
ISTerre - Institut des Sciences de la Terre
Abstract : This paper aims to provide an overview of the investigations led in the Upper-Durance catchment (upstream Guillestre), focusing on the disappearance of glaciers after the Last Glacial Maximum. It is based on extensive fieldwork, describing and mapping the geomorphic remnants of past-glaciations, and 35 Cosmic Ray Exposure ages. A four-stage chronological sequence summarises glacial variations during the Late-Glacial/Holocene transition. The main results provide both chronological data (two generations of moraines identified as Younger Dryas and Preboreal) and spatial data (asymmetry of glaciers development in the Upper-Durance catchment during the Late-Glacial), providing new findings that may be useful for palaeo-climatologists.
keyword : Last Glacial Maximum Alps Late-Glacial glaciers cosmogenic nuclides Briançonnais
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https://hal-insu.archives-ouvertes.fr/insu-00679788
Contributor : Pascale Talour <>
Submitted on : Friday, March 16, 2012 - 12:38:05 PM
Last modification on : Tuesday, December 8, 2020 - 10:21:04 AM

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UNIV-SAVOIE | UNIV-PARIS1 | UNIV-PARIS7 | EPHE | INSU | CNRS | OSUG | UNIV-AMU | IFSTTAR | ISTERRE | PRODIG-PUBLICATIONS | CDF | USPC | OSU-INSTITUT-PYTHEAS | CEREGE | INRA | SORBONNE-UNIVERSITE | CAMPUS-CONDORCET | SU-LETTRES | INRAE | UNIV-PARIS | UP-SOCIETES-HUMANITES | TP | PSL | UGA

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Etienne Cossart, Didier Bourlès, Regis Braucher, Julien Carcaillet, Monique Fort, et al.. Glacier extents within Briançonnais Alps (southern French Alps) from the Last Glacial Maximum to the Holocene: chronological synthesis. Géomorphologie : relief, processus, environnement, Groupe français de géomorphologie (GFG), 2011, pp.123-142. ⟨10.4000/geomorphologie.9336⟩. ⟨insu-00679788⟩

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