colluvial apron

colluvial apron
   A landform with a concave to planar surface composed of a thick wedge-shaped deposit of colluvium and/or slope alluvium that forms the base (footslope) of a bluff, escarpment or steep slope .
   Compare: beveled base.
   SW

Glossary of landform and geologic terms. 2013.

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  • mountainbase —    A geomorphic component of mountains consisting of the lowermost area, consisting of the strongly to slightly concave colluvial apron or wedge at the bottom of mountain slopes; composed of long transport colluvium and slope alluvium sediment.… …   Glossary of landform and geologic terms

  • base slope —    [ geomorphology ]    A geomorphic component of hills consisting of the concave to linear slope (perpendicular to the contour) which, regardless of the lateral shape is an area that forms an apron or wedge at the bottom of a hillside dominated… …   Glossary of landform and geologic terms

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