Parent Materials Mode of Deposition in Southern Ontario and Quebec
Fluvioglacial material deposited by flowing glacial meltwater. Mostly sand and/or gravel..
Morainal marterial deposited by ice. A mixture of boulders, stones, sand, silt and clay.
Lacustrine material deposited by glacial lake water. Mostly silt and clay.
Eolian material deposited by wind. Uniform deosit of very fine sand and silt.
Shallow soils on rock
Alluvial material deposited by modern stream water. Variable deposit of sand, silt and clay.
Organic material deposited when accumulation exceeds decomposition. Stratified deposit of peat.