VULCANICITY

VULCANICITY

The term vulcanicity includes in it’s widest sense all the processes by which solid, liquid or gaseous materials are forced into the earth crust or escape on to the surface.

In either case , this activity may have a profound effect on surface features.

The materials injected into the crust, known as intrusive rocks may later be exposed by denudation, while the molten rock and other materials that reach the surface solidifies as extrusive rocks.

Magma, the molten rock materials beneath the earth’s crust is normally maintained by overlying pressure in a state of apparent solidity but the earth movement caused pressures that turns it into molten magma leading to Vulcanicity.