What is the primary role of glacial till in soil formation?

The primary role of glacial till in soil formation is to provide parent material for soil development. Glacial till is a type of sediment that is deposited directly by glacial ice, consisting of a mixture of clay, silt, sand, gravel, and boulders. This unsorted and heterogeneous material serves as a foundation upon which soils can develop.

As time goes on, this parent material undergoes weathering processes, including physical breakdown, chemical alteration, and biological activity, leading to the formation of distinct soil profiles. The mineral content and characteristics of the glacial till contribute to the properties of the resulting soil, influencing aspects like nutrient availability and drainage capability. The presence of glacial till is essential in regions affected by glaciation, as it provides a rich source of minerals that can support the development of fertile soils over time.