DEGREE OF ROCK SURFACE WEATHERING AS AN INDICATOR OF ICE-SHEET THICKNESS ALONG AN EAST-WEST TRANSECT ACROSS SOUTHERN NORWAY

Rock surface weathering, as reflected by rock surface hardness and rou ghness, was measured at six mountains along an east-west transect acro ss southern Norway. At most sites the results show significant differe nces in rock surface weathering across the autochthonous blockfield bo undary, suggesting that the areas above the boundary have been exposed to subaerial weathering for a considerably longer time span that the areas below. The results are interpreted as reflecting the surface pro file of an asymmetric, west-centred, low-gradient ice sheet.