摘要
In this paper, the authors discuss the exposure possibilities of glacial deposit series during the processes of their production, transportation and deposition based on the observations and sedimentology. The till materials come from by three ways, i.e., the weathered debris from bedrock, the eroded debris by glacier ice and eolian deposit. Of which the eolian dust and a large portion of the weathered debris could be exposed to daylight,whereas glacial eroded debris could not. Among the three kind of glacial deposits, the glaciofluvial deposit can be completely exposed. For till deposit,supraglacial melt out till could be basically exposed, whereas lodgement till could not. For ice contact deposit, sand in kame could be completely exposed and esker could not.