Question

List the erosional features carved out by wind action and action of sheet floods.

Answer 1

The erosional features carved out by wind action and the action of sheet floods in arid regions include:

• Pediments and Pediplains: Gently inclined rock floors formed at the foot of receding mountain slopes, which can eventually coalesce into extensive low-relief plains called pediplains.
• Playas: Shallow, temporary lakes formed in desert basins where water from sheet floods collects and evaporates, leaving behind sheets of salt, silt, and clay.
• Deflation Hollows and Caves: Depressions and hollows carved out when the wind lifts and removes loose particles from the surface through deflation.
• Mushroom, Table, and Pedestal Rocks: Sculpted rock pillars where sandblasting (abrasion) by wind near the ground erodes the base faster than the top, creating mushroom-like shapes.