What do you mean by deflation hollow?
Enclosed 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.
How is deflation best described?
Definition: When the overall price level decreases so that inflation rate becomes negative, it is called deflation. It is the opposite of the often-encountered inflation. Description: A reduction in money supply or credit availability is the reason for deflation in most cases.
What is a deflation in geography?
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.
Why is artifact deflation a problem?
If artifacts belonging to stratigraphically discrete occupations occur in a matrix of fine sediments, then deflation can potentially erode these artifacts onto a common surface creating a “mixed” assemblage.
How can deflation affect rock size?
Answer: causes weathering by blowing bits of material against cliffs and large rocks. This wears and breaks the rock down into sand and dust.
Does deflation lead to dust storms?
As a consequence, the new sources of soil deflation and sources of dust/sand storms have appeared in the southern Pre-Balkhash deserts that lead to high concentration of salts in the atmospheric flows.
How do dust storms work?
Dust storms arise when a gust front or other strong wind blows loose sand and dirt from a dry surface. Fine particles are transported by saltation and suspension, a process that moves soil from one place and deposits it in another.
How can sandstorms affect humans?
Conclusion: Exposure to sandstorm causes cough, runny nose, wheeze, acute asthmatic attack, eye irritation / redness, headache, body ache, sleep and psychological disturbances. These results indicate that sandstorm is a prolific source of respiratory and general ailments.
How do sandstorms kill you?
Sandstorms are violent wind storms that occur often in the desert. While these winds won’t kill you, they frequently cause auto accidents as a result of the blinding effect of the sand. …
How dangerous is a sandstorm?
It causes accidents like collisions. In desert areas without sealed roads and road signs, getting lost is a severe risk. For people, being exposed to a sandstorm poses serious health threats. The sand and dust can get into the eyes, mouth, nose, and lungs, which can cause breathing difficulties and infections.
What should I do if I inhaled a lot of dust?
If you notice that you are having a hard time breathing, you’re experiencing shortness of breath, coughing more than usual, wheezing or notice excess mucus, you may have damaged your lungs from inhaling dust particles. See a doctor right away. Scarring within the lungs can occur and lead to numerous lung diseases.