Sr as tracers of bedrock weathering and hydrologic flowpaths beneath an Alpine glacier. Sr ratio of runoff from the Haut Glacier d'Arolla are presented for four periods during May through August 1994.
Sr are constant.
The bedrock of the glaciated catchment contains a number of different lithologies. 4 2- is derived from the major bedrock lithology, schistose granites. Isotopic heterogeneity within the schistose granite confounds simple interpretation of the isotopic variations in bulk runoff. Sr variations are consistent with an expansion of the subglacial hydrological system throughout the melt season.