Noun(1) a more or less level land surface representing an advanced stage of erosion undisturbed by crustal movements
(1) Here the sequence of processes and landforms which exists between the tectonic uplift of an area and its reduction to a peneplain or erosion surface close to base level is believed to have occurred many times in certain regions.(2) It occupies the high-lying peneplain between South Africa and Swaziland, and borders against the low-lying, older greenstone terrane in the north along a prominent, 500-700 m high escarpment.(3) Possibly this was the time of exhumation of the Augenstein peneplain in the Northern Calcareous Alps, formed during Priabonian-Early Kiscellian time.(4) the Palaeozoic Urals were eroded down to a peneplain by the end of Jurassic time, with platform sediments covering most of the orogen.(5) The south slope is generally planar except where incised by glacial or fluvial valleys and is a remnant peneplain of late Cretaceous-early Tertiary age, which is well developed in western Mongolia and adjacent regions of China.
English to Welsh Dictionary: peneplain
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