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

State the chemical and physical processes of weathering, State the Chemical...

State the Chemical and Physical processes of weathering The chemical and physical processes of weathering aid each other. A rock mechanically broken into smaller pieces exposes

Sketch the water surface profiles - critical depth lines, Sketch the water ...

Sketch the water surface profiles for the cases below. Label the normal and critical depth lines as well as all of the water surface profiles. In part (b), the conjugate de

Help, A rock weighs 33.6 N on Planet X and 49 N on Earth. What is g on Plan...

A rock weighs 33.6 N on Planet X and 49 N on Earth. What is g on Planet X?

Explain sympathetic - nerves system, Explain Sympathetic - Nerves System ...

Explain Sympathetic - Nerves System Sympathetic, as the word suggests, means to sympathize. The body sympathizes during fight, flight and fright reaction. For example, have you

Neurological system, There are many different venomous animals in the world...

There are many different venomous animals in the world.The venom produced by one animal can be very different that the venom produced by another animal. There are some animal venom

Marshall Island Restoration Plan, What is necessary to restore the Marshall...

What is necessary to restore the Marshall wetland in Margibi County, Liberia? The Marshall wetland has several features , including mangrove swamp, which is being degraded in some

Explain the geoid and the surface of the earth, What is the difference amo...

What is the difference among the geoid and the surface of the earth? The geoid is an visualize surface that equal with the average (mean) sea level around the world. Thus, i

First aid treatment for shock, FIRST AID TREATMENT FOR SHOCK : Some de...

FIRST AID TREATMENT FOR SHOCK : Some degree of shock is produced in most accidents. Shock is associated with changes in the system of blood circulation varying from temporary

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