TREC - Glaciation
Glaciation is responsible for much of the landscape in the northern mid-latitudes and is the result of periodic worldwide climate changes. The types of glacial landforms permit reconstruction of ice margins and glacier dynamics. Stratigraphy, texture, and composition of glacial deposits can be used to define individual glacial advances and changes in source area of the ice. The distribution of landforms affects the ecology, distribution of natural resources, and human settlement patterns in glaciated terrain.