Le milieu paraglaciaire et l'accélération de la décrue des glaciers du Haut Arc (Savoie) au cours des dernières décennies, (Paraglacial formations and recent glacial recession in the Haut Arc, Savoy, France)

摘要

For the last 150 years, the Haut Arc glaciers (Savoie, France) follow a quite constant generalized retreat. This glaciological situation releases a wide area recently deglaciated, scene particularly favourable to paraglacial system. This article exposes summarily the glaciological and geomorphological context, and details the main processes reported from this area. The results so obtained show a continuity of processes already active since the end of the Little Ice Age, but also the appearance of new phenomena bound to the speed up of the glacio-fluvial processes and the modification of glaciers' forelands.