Pediplain


pediplain

[′ped·ə‚plān] (geology) A rock-cut erosion surface formed in a desert by the coalescence of two or more pediments. Also known as desert peneplain; desert plain; panfan.

Pediplain

 

an outwash plain formed in formerly mountainous or hilly arid and semiarid regions through the parallel retreat of valley slopes and the coalescing of pediments (see). Opinions differ concerning the mechanism triggering the formation of pediplains.