differential erosion
Geological term referring to the uneven erosion of rock layers due to differences in hardness or resistance.
Due to differential erosion, harder rock layers can remain as ridges.
Standard kanji spelling for this geological term.
Variant spelling using 浸食, which is also used in geological contexts.
Compound of 差別 (differential) and 侵食 (erosion). The exact historical derivation is uncertain, but the term is a modern technical coinage.