solifluction deposit

solifluction deposit
   A deposit of nonsorted, water-saturated, earthy material locally derived that is moving or has moved down slope en masse, caused by the melting of seasonal frost or permafrost, resulting in an over-thickened leading edge of linear, lobate, or irregular forms that loosely parallel or obliquely follow the slope contour; may be surficially armored by rock fragments on the leading edge.
   SW

Glossary of landform and geologic terms. 2013.

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