Base level

Rarity: Common

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At a glance

Class

Notion

Domain

Science and technology

In collections

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What Wikipedia says

In geology and geomorphology a base level is the lower limit for the vertical position of an erosion process. The modern term was introduced by John Wesley Powell in 1875. The term was subsequently appropriated by William Morris Davis who used it in his cycle of erosion theory.

Excerpt from the Wikipedia article “Base level”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: ManuRoquette, CC BY-SA 4.0, via Wikimedia Commons.