When the high relief structures in deserts are reduced to low featureless plains by the activities of wind, they are called as Pediplains.
Deflation is the removal of loose particles from the ground by the action of wind. When deflation causes a shallow depression by persistent movements of wind, they are called as deflation hollows.
Ventifacts are rocks that have been abraded, pitted, etched, grooved, or polished by wind-driven sand or ice crystals. These geomorphic features are most typically found in arid environments where there is little vegetation to interfere with aeolian particle transport, where there are frequently strong winds, and where there is a steady but not overwhelming supply of sand. Mushroom Tables / Mushroom rocks are Ventifacts in the shape of a mushroom.
In deserts, a greater amount of sand and rock particles are transported close to the ground by the winds which cause more bottom erosion in overlying rocks than the top. This result in the formation of rock pillars shaped like a mushroom with narrow pillars with broad top surfaces.UKPCS Notes brings Prelims and Mains programs for UKPCS Prelims and UKPCS Mains Exam preparation. Various Programs initiated by UKPCS Notes are as follows:-
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