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peneplain

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pe·ne·plain also pe·ne·plane  (pn-pln)
n.
A nearly flat land surface representing an advanced stage of erosion.

[pene-, almost (from Latin paene) + plain.]

peneplain, peneplane [ˈpiːnɪˌpleɪn ˌpiːnɪˈpleɪn]
n
(Earth Sciences / Physical Geography) a relatively flat land surface produced by a long period of erosion
[from pene- + plain1]
peneplanation  n
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.peneplain - a more or less level land surface representing an advanced stage of erosion undisturbed by crustal movementspeneplain - a more or less level land surface representing an advanced stage of erosion undisturbed by crustal movements
geology - a science that deals with the history of the earth as recorded in rocks
champaign, plain, field - extensive tract of level open land; "they emerged from the woods onto a vast open plain"; "he longed for the fields of his youth"


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The flat surface of the Cape Breton Highlands is no longer considered a peneplain cut to sea level Seismic reflections are caused by velocity-density contrasts, not chemical-density contrasts.
The lowest peneplain consists of coastal lowlands with elevations from sea level to 300 m above mean sea level (MSL) except for a few isolated inselbergs.
Due to intense denudation during the late Proterozoic, the surface of the basement has turned into a peneplain, which dips gently (on average 0.
 
 
 
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