A schematic diagram aids geologists and geomorphologists in visualizing the relations between modern and ancient till-forming processes. It can be modified to accommodate mechanisms of till formation not yet recognized or to include other processes involved in making glacial deposits. The prism can also be used to trace till history, from debris release from glacier ice to final emplacement, as well as to depict multiple stages of till deposition in an outcrop or geographic area. Use of the prism should improve understanding of glacier behavior and help in reconstructing the dynamics of former ice sheets.

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