What is a Peneplain?

By K Balaji|Updated : November 4th, 2022

A peneplain is a low-relief plateau formed by stream or water erosion. A peneplain formed by water erosion would eventually reduce the ground to the base or sea level. In the end, there would be very little slope left, which would prevent any erosion.

Peneplain Example and its Types

The long time spans over which some peneplains form to confirm that a variety of climatic influences, marine bruises, and glacial erosion are all processes that can contribute to the formation of peneplains.

  • Peneplains are associated with William Morris Davis's erosion theory cycle on a regular basis.
  • The oldest identifiable Peneplain in a region is referred to as the primary Peneplain.
  • The Sub-Cambrian Peneplain is an example of a primary peneplain in southern Sweden.
  • Various terms for landforms are either options to classical peneplains, a sub-set of peneplains, or partly coincide with them.
  • Peneplains are of two types: Planation surfaces (comprising of Pediplain, Inselberg plain, and Etchplain), and the second type is Hilly relief, including Etched hilly relief.

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FAQs on Peneplain

  • Peneplain, a gently oscillating, featureless plain, is constructed by depositional erosion. During the geologic time, Peneplain would lessen the land almost to ground level (sea level), leaving little incline so that no erosion could happen.

  • The oldest known Peneplain in an area is known as a primary peneplain. Sub-Cambrian Peneplain in southern Sweden is an example of a primary peneplain.

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