Parent Materials Mode of Deposition in British Columbia
Flood Plain
Alluvial material deposited by modern stream water: variable deposit of sand, silt and clay.
Fluvioglacial material deposited by flowing glacial meltwater. Mostly sand and/or gravel..
Organic material deposited when accumulation exceeds decomposition. Stratified deposit of peat.
Colluvial material deposited by direct gravity induced movement. Variable deposit ranging from clay to boulders.
Lacustrine material deposited by glacial lake water. Mostly silt and clay.
Morainal material deposited by ice. A mixture of boulders, stones, sand, silt and clay.