Till
Unsorted glacial sediment / From Wikipedia, the free encyclopedia
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This article is about glacial sediments. For a point-of-sale device in shops, see Cash register. For other uses, see Till (disambiguation).
Till or glacial till is unsorted glacial sediment.
Till is derived from the erosion and entrainment of material by the moving ice of a glacier. It is deposited some distance down-ice to form terminal, lateral, medial and ground moraines.
Till is classified into primary deposits, laid down directly by glaciers, and secondary deposits, reworked by fluvial transport and other processes.