Temperature variations in glacial regions, Science

Assignment Help:

Temperature variations in glacial regions

In glacial regions of the world or during forest fires the rocks are exposed to extreme temperatures. Since the conduction of heat is very slow, the temperatures at the surface and the interior of the rock are quite different thereby a kind of lateral stress is generated which may cause the peeling off of the external layers of the rock. This phenomenon is called as exfoliation and is accelerated by freezing of water trap ped inside the rock  crevices and  unloading i.e., the removal of  overlying rocks or sediments causing the release of pressure.

 


Related Discussions:- Temperature variations in glacial regions

Explain the reflex control - movements of gall bladder, Explain the Reflex ...

Explain the Reflex control - Movements of Gall Bladder Reflex control: During digestion, reflex stimulation of gall bladder takes place. Entry of acid into the duodenum reflex

Explain hypercapnia and hypocapnia - histotoxic hypoxia, Explain Hypercapni...

Explain Hypercapnia and Hypocapnia - Histotoxic Hypoxia Hypercapnia: It is the retention of carbon dioxide in the body. There is a depression of the central nervous system.

Explain the menopause, Explain the Menopause The cessation of menstruat...

Explain the Menopause The cessation of menstruation is menopause. Natural menopause typically occurs between 45 and 55 years of age. It is caused by changes in concentration of

Developments in medicine, Developments in Medicine: During the early Ve...

Developments in Medicine: During the early Vedic period, healing was thought to be the duty of  the priests. Diseases were seen as the results of God's wrath for sins committed

What are the steps involved in pulse milling, Q. What are the steps involve...

Q. What are the steps involved in pulse milling? The important steps involved in pulse milling are - overnight soaking in water, smearing with red earth mixed with water follow

Decline of european science, Decline of european science: By the middle...

Decline of european science: By the middle of  the second century B.C., the Greek empires were collapsing in  anarchy andunder the weight of  the more vigorous power of Rome. I

Define white blood cells (wbcs), Define White Blood cells (WBCs) WBCs a...

Define White Blood cells (WBCs) WBCs are also called leukocytes, as they are colourless. They are the army of the human body. Whenever a germ or infection enters our body, the

Chemicals in medicines., I want conclusion for the above topic. please help...

I want conclusion for the above topic. please help me out.

Atom, what is the difference in atomic mass of iodine and magnesium

what is the difference in atomic mass of iodine and magnesium

Experiment to show that air has weight, TO SHOW THAT AIR HAS WEIGHT Dri...

TO SHOW THAT AIR HAS WEIGHT Drive a thin nail by the exact centre of a long rod such as a metre stick or a yard stick. Balance the stick by resting the nail on the rims of two

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd