Late Pleistocene periglacial conditions in Blaksmark near Varde (Denmark)

Abstract

During pipe line construction in Blaksmark north of Varde in Denmark a shallow depression with a tilted block of sand and gravel, and an infill of layered sand and silt was found. It is suggested that fluvio-thermal erosion has taken place here. Ice wedge casts present in the adjacent sand indicate that permafrost existed during a former cold period. It is suggested that the thermal erosion and the filling, as well as the formation of the frost wedges date from the last permafrost period of the Weichselian.