Deflation is a term of geomorphology used for the removal of solid particles by wind (from Latin: deflare, to blow away). Deflation is the common and most important form of erosion in flat deserts; in deserts with some relief, rain and running water (however rare) become the major agents.
What type of erosion is deflation?
Wind erosion This action erodes material by deflation—the removal of small loose particles—and by sandblasting of landforms by wind-transported material.
What is abrasion and deflation?
Wind erodes the Earth’s surface by removal of loose, fine-grained particles by turbulent eddy actions and it is called Deflation. Regions which experience intense and sustained erosion are called deflation zones. Abrasion refers to grinding of the rock surfaces with particles captured in the air.
Does deflation lead to dust storms?
Deflation processes in deserts and dust deposits occur due to physical–geographical and climatic conditions of the region (Yang and Scuderi 2010; Uteshev and Semenov 1967). Desert areas are more often the principal source of dust storm development (Squires 2001; Yang and Scuderi 2010; Moutaz et al. 2012).
What is erosion by water?
Water erosion is the detachment and removal of soil material by water. Water erosion wears away the earth’s surface. Sheet erosion is the more-or-less uniform removal of soil from the surface. Rill and gully erosion occurs when concentrated runoff cuts conspicuous channels into the soil.
How big is a hollow caused by deflation?
In deflation …to deflation may result in deflation hollows or blowouts. These may range from 3 m (10 feet) in diameter and less than a metre deep to several kilometres in diameter and several hundred metres in depth.
Where can you find a deflation hollow depression?
deflation hollowEnclosed depression produced by wind erosion. It may be found both in hot deserts, where wind may scour a hollow in relatively unconsolidated material, and in more temperate regions, where a protective vegetational cover has been removed from a sand dune. A Dictionary of Earth Sciences
How big can a deflation blowout get?
Local areas subjected to deflation may result in deflation hollows or blowouts. These may range from 3 m (10 feet) in diameter and less than a metre deep to several kilometres in diameter and several hundred metres in depth.
What is the definition of deflation in geology?
See Article History. Deflation, in geology, erosion by wind of loose material from flat areas of dry, uncemented sediments such as those occurring in deserts, dry lake beds, floodplains, and glacial outwash plains.
