Parent Materials Mode of Deposition in the Prairie Provinces
Eolian material deposited by wind. Uniform deosit of very fine sand and silt.
Alluvial material deposited by modern stream water: variable deposit of sand, silt and clay.
Morainal marterial deposited by ice. A mixture of boulders, stones, sand, silt and clay.
Organic material deposited when accumulation exceeds decomposition. Stratified deposit of peat.
Fluvioglacial material deposited by flowing glacial meltwater. Mostly sand and/or gravel..
Lacustrine material deposited by glacial lake water. Mostly silt and clay.