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Geological Society, London, Special Publications; 2005; v. 242; p. 111-117;
DOI: 10.1144/GSL.SP.2005.242.01.10
© 2005 Geological Society of London

Proglacial and Ice Marginal Processes

Actual paraglacial progradation of the coastal zone in the Kongsfjorden area, western Spitsbergen (Svalbard)

Denis Mercier1 & Dominique Laffly2

1 Department of Geography University of Paris 4 Sorbonne, 191 rue Saint Jacques 75 005 Paris, France denis.mercier{at}paris4.sorbonne.fr
2 Department of Geography University of Pau avenue du Doyen Poplawski 64 000 Pau, France dominique.laffly{at}univ-pau.fr

This research was carried out on the Brøgger Peninsula, northwest Spitsbergen, Svalbard (79°N 12°E). In the western part of Spitsbergen, cold-based valley glaciers have retreated more than 1 km from their Little Ice Age limits, and glacial meltwater has extensively reworked glacigenic sediments on exposed glacier forelands. In such areas, a paraglacial sediment transport regime has become predominant, with runoff as the dominant process. A combination of GIS, DEM, aerial photographic and field data was employed to estimate shoreline progradation at sandur outflows. Average shoreline progradation is estimated to amount to 3 m/annum over the last 30 years, a period of uninterrupted sediment provision from the glacial runoff system.





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[Abstract] [PDF]