mountainbase

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. It can extend out onto more level valley areas where it ultimately interfingers with, is buried by alluvium or is replaced by re-emergent residuum.
   SW

Glossary of landform and geologic terms. 2013.

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  • geomorphic component - mountains —    A group of fundamental, three dimensional pieces or areas of mountains. In descending elevational order, the geomorphic components of a simple mountain are the mountaintop (roughly analogous to the crest or summit); mountainflank (the long… …   Glossary of landform and geologic terms

  • mountainflank —    A geomorphic component of mountains consisting of the side area of mountains, characterized by very long, complex backslopes with comparatively high slope gradients and composed of highly diverse, colluvial sediment mantles, complex near… …   Glossary of landform and geologic terms

  • mountaintop —    A geomorphic component of mountains consisting of the uppermost, comparatively level or gently sloped area of mountains, characterized by relatively short, simple slopes composed of bare rock, residuum, or short transport colluvial sediments.… …   Glossary of landform and geologic terms

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