A more or less level land surface produced by erosion over a long period, undisturbed by crustal movement.
More example sentences
- 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.
- the Palaeozoic Urals were eroded down to a peneplain by the end of Jurassic time, with platform sediments covering most of the orogen.
- 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.
late 19th century: from Latin paene 'almost' + plain1.
Definition of peneplain in:
- The US English dictionary