Definitions for peneplain
ˈpi nəˌpleɪn, ˈpɛn ə-pene·plain

Princeton's WordNetRate this definition:0.0 / 0 votes

1. peneplain, peneplanenoun

   a more or less level land surface representing an advanced stage of erosion undisturbed by crustal movements

WiktionaryRate this definition:0.0 / 0 votes

1. peneplainnoun

   A region of faint or low relief, a based-level plain.

WikipediaRate this definition:0.0 / 0 votes

1. Peneplain

   In geomorphology and geology, a peneplain is a low-relief plain formed by protracted erosion. This is the definition in the broadest of terms, albeit with frequency the usage of peneplain is meant to imply the representation of a near-final (or penultimate) stage of fluvial erosion during times of extended tectonic stability. Peneplains are sometimes associated with the cycle of erosion theory of William Morris Davis, but Davis and other workers have also used the term in a purely descriptive manner without any theory or particular genesis attached.The existence of some peneplains, and peneplanation as a process in nature, is not without controversy, due to a lack of contemporary examples and uncertainty in identifying relic examples. By some definitions, peneplains grade down to a base level represented by sea level, yet in other definitions such a condition is ignored. Geomorphologist Karna Lidmar-Bergström and co-workers consider the base level criterion crucial and above the precise mechanism of formation of peneplains, including this way some pediplains among peneplains.While peneplains are usually assumed to form near sea level it has also been posited that peneplains can form at height if extensive sedimentation raises the local base level sufficiently or if river networks are continuously obstructed by tectonic deformation. The peneplains of the Pyrenees and Tibetan Plateau may exemplify these two cases respectively.A common misconception about peneplains is that they ought to be so plain they are featureless. In fact, some peneplains may be hilly as they reflect irregular deep weathering, forming a plain grading to a base level only at a grand-scale.

ChatGPTRate this definition:0.0 / 0 votes

1. peneplain

   A peneplain is a large area of relatively level land that has been eroded to such an extent that it is nearly flat. This typically occurs over a long period of time due to the effects of erosion and weathering. The term is derived from Latin and means "almost plain." The surface often has very gentle slopes and is interrupted only by occasional hills or residual outcrops. It is considered the final stage in the cycle of erosion.

WikidataRate this definition:0.0 / 0 votes

1. Peneplain

   A peneplain is a low-relief plain representing the final stage of fluvial erosion during times of extended tectonic stability. The existence of peneplains, and peneplanation as a geomorphological process, is not without controversy, due to a lack of contemporary examples and uncertainty in identifying relic examples. After the streams in an area have reached "base level", lateral erosion is dominant as the higher areas between the streams are eroded. Finally, the upland is almost gone: the stream floodplains merge in an area of very low to no topographic relief. The resulting flat plain is the ultimate stage in the cycle of erosion or geographical cycle. The streams within a peneplained region show extensive meandering and braiding. If the area is subsequently uplifted due to adjacent orogenic processes, without internal deformation within the peneplain, the streams will again begin downward erosion - creating incised meanders, water gaps, and other unique geomorphic features. A peneplain can be mistaken for a depositional plain. However, the rocks beneath a peneplain have been folded and tilted by tectonic forces, while the rocks beneath a depositional plain lie in horizontal layers.

Matched Categories

1. • Geology
   • Plain

How to pronounce peneplain?

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How to say peneplain in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of peneplain in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of peneplain in Pythagorean Numerology is: 2

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=peneplain
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Peneplain
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Peneplain
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=peneplain