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Earth and Space Sciences · 术语表

什么是 Erosional isostatic rebound?

Definition 18.18 University Earth and Space Sciences — Year 3 · 第 18 章 — Quantitative Geomorphology

Erosional isostatic rebound is the rise of the rock surface of a region in isostatic equilibrium in response to the mass removed by erosion.

Erosional isostatic rebound, schematic. Cutting valleys removes a mean thickness e of crust; the column rises by = ( _c/ _m) e at its base and at its untouched summits (the grey dashed line is the old surface).
Erosional isostatic rebound, schematic. Cutting valleys removes a mean thickness eˉ\bar e of crust; the column rises by δ=(ρc/ρm)eˉ\delta = (\rho_c/\rho_m)\bar e at its base and at its untouched summits (the grey dashed line is the old surface).
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