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Northwest Territories
Soil Parent Material Modes of Deposition

Morainal material (till) deposited by glacial ice: a mixture of boulders, sand, silt and clay.

Perennially frozen lacustrine material deposited in glacial lake water: rhythmic (varved) silt and clay contorted by ice wedge formation.

Peat deposit resulting from accumulation of vegetative (organic) materials: mesic and fibric sedge and moss peat.

Perennially frozen, shallow morainal material (till) underlain by granitic bedrock: the loamy textured material is affected by downslope movement.

Perennially frozen, loamy-textured, colluviated till: the material is underlain by thick ground ice.

Thin veneer of colluvium over limestone bedrock: the colluvium consists mainly of rock fragments, sand, silt and clay.

Contact: Head, CanSIS