Prairie Provinces
Soil Parent Material Modes of Deposition

Morainal

Morainal material deposited by ice: a mixture of boulders, stones, sand, silt and clay.

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Fluvioglacial

Fluvioglacial material deposited by flowing glacial meltwater: mostly sand and/or gravel.

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Lacustrine

Lacustrine material deposited by glacial lake water: mostly silt and clay.

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Alluvial

Alluvial material deposited by modern stream water: variable deposit of sand, silt and clay.

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Eolian

Eolian material deposited by wind: uniform deposit of very fine sand and silt.

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Organic

Organic material deposited when accumulation exceeds decomposition: stratified deposit of peat.

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Contact: Head, CanSIS