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 oxidation of fatty acids, Explain Oxidation of Fatty Acids ? F...

Explain Oxidation of Fatty Acids ? Fatty acids released from chylomicrons and VLDL are transferred across cell membranes by passive diffusion, which depends upon the concentra

The fume cupboard to handling of chemicals, The Fume Cupboard : If a react...

The Fume Cupboard : If a reaction uses or produces harmful gases, dusts or vapours, it poses a risk of inhalation. Such reactions should be carried out not on an open bench but in

Explain the urinary bladder, Explain the Urinary Bladder The urinary bl...

Explain the Urinary Bladder The urinary bladder is a sac, which acts as a reservoir for urine. You would realize that the size and position of the urinary bladder varies depend

Explain sinus bradycardia - electrocardiogram, Explain Sinus Bradycardia - ...

Explain Sinus Bradycardia - Electrocardiogram If the SA node discharge rate is slow, the heart rate is slow. ECG is normal in every respect except that the heart rate at rest i

Explain immunohistochemistry, Explain Immunohistochemistry Here the Ag ...

Explain Immunohistochemistry Here the Ag is tagged with a fluorescent dye (e.g. rhodamine). Inspite of a tag, the Ab binds to the Ag. In the section of a tissue, the Ag with ta

Need a question answered, 1. Describe the paths of water through the hydrol...

1. Describe the paths of water through the hydrologic cycle. Explain the processes and the energy gains and losses involved in the changes of water between its 3 states. Operatio

Draw emergency disaster plan, The industry dealing with hazardous materials...

The industry dealing with hazardous materials should draw emergency disaster plan. Safety committees consisting of workers and management are required to review from time to tim

Explain myocurdial ischemia and infarction, Explain Myocurdial Ischemia and...

Explain Myocurdial Ischemia and Infarction Myocardial ischemia (insufficient blood flow) or myocardial infarction (death of heart cells) reduces myocardial contractile force an

Explain hypothesis, What is a hypothesis? Ans) A hypothesis is a postu...

What is a hypothesis? Ans) A hypothesis is a postulation as to what could be the case; it is a suggestion as to something that precisely models and describes some aspect in re

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