oversteepening

oversteepening

[¦ō·vər′stēp·ə·niŋ]
(geology)
The process by which an eroding alpine glacier steepens the sides of an inherited preglacial valley.
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References in periodicals archive ?
This subsidence regime is directly related to the Neotethys Ocean rifts that created unstable platform tops through oversteepening.
However the lack of evidence for oversteepening of the paleoice surface does not support ice reduction.
On the higher dune ridge, niveo-aeolian deposition also extended the top of the dune, but the result was an oversteepening of the slip face.
Channel erosion involves the interaction of several physical processes: lateral hydraulic erosion of the bank, oversteepening, bank mass failure along a shear plane, deposition of toe material, and erosion of toe material to expose the new bank, completing the cycle.
Measurements of sand accumulation around pins on the lee slope of the dune indicate that deposition is concentrated on the upper slip face during the fall and winter leading to oversteepening (37[degrees]) towards the crest.