抄録
Lake Karakul, located in eastern Pamir (Tajikistan), is a closed basin lake surrounded by mountain glaciers (closed glacierized-basin lake). Previous studies indicate that four lake transgressions synchronous with glacier advances in the catchment occurred in this lake. However, the absolute timings of higher lake levels/glacial advances have not yet been reported. In this study, eleven samples for OSL dating were collected from sites where the upper limit of the lacustrine terrace is connected to the margin of the outermost terminal moraine and palaeoshoreline deposits. The preliminary results suggest that the penultimate maximum lake/glacial expansion occurred at 15–12 ka.