GEOG 1030 Lecture 7: LANDFORMS MADE BY WIND AND WAVES
10 May 2016
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Document Summary
Wind: wind is the movement of air, a fluid of low density, and waves involve the movement of water, a fluid of much higher density o. The power of moving air to create landforms is much lower than the power of moving water as waves o. Deflation - the removal of particles, largely slit and clay, from the ground by wind. In dry climates, much of the ground surface can be deflated because the soil/sediment is not held in place by vegetation. The removal of particles depends on the size of the particles. If there is a mixture, deflation removes fine particles and leaves behind the coarser particles. As a result, rock fragments ranging in sizes become concentrated into a surface layer known as a desert pavement. The pavement acts as armor that protects the remaining fine particles from removal by deflation or overland flow. In drier regions, deflation can form a shallow basin called a blowout.
