The Metamorphic Rock Formed When Granite Undergoes Heat And Poressure

Metamorphic rocks are formed buried inside the earth s surface on being subjected to high temperatures and pressures of the rock layers above it.

The metamorphic rock formed when granite undergoes heat and poressure. In migmatite you can see metamorphic rock that has reached the limits of metamorphism and begun transitioning into the igneous stage of the rock cycle by melting to form magma. Slate is another common metamorphic rock that forms from shale. The granitic rock in migmatite probably originated from partial melting of some of the metamorphic rock though in some migmatites the granite may have intruded the rock from deeper in the crust. Heat necessary for metamorphism comes from magma of the earth or friction from moving tectonic plates.

Some form during mountain building by forces of others from the heat of igneous intrusions in regional metamorphism others from the heat of igneous intrusions in contact metamorphism. Limestone a sedimentary rock will change into the metamorphic rock marble if the right conditions are met. Metamorphic forma s a result of intense heat and pressure. Marble marble is a metamorphic rock made up of granular limestone or dolomite i e rock composed of calcium magnesium carbonate that has been recrystallized under the influence of heat pressure and aqueous solutions.

Sedimentary form as a result of cementation and compaction. According to geology the term metamorphic is denoted to the rock that undergoes metamorphism. They differ in the way they form. The study of metamorphic rocks now exposed at the earth s surface following erosion and uplift.

They are also formed when rock is heated by the intrusion of hot molten rock called magma from the earth s interior. 1 regional metamorphism which affects a large area. Metamorphic rocks have two classes. They can form from tectonic processes such as continental collisions which cause horizontal pressure friction and distortion.

Both formed as a result of the rock cycle. Both can form from the other type. Metamorphic rocks are an important topic in geology. These are the rocks that form by the effects of heat pressure and shear upon igneous and sedimentary rocks.

They may be formed simply by being deep beneath the earth s surface subjected to high temperatures and the great pressure of the rock layers above it. Foliation is the aligning of elongated or platy minerals like hornblende or mica perpendicular to the direction of pressure that is applied. When a rock with flat or elongated minerals is put under immense pressure the minerals line up in layers creating foliation. When granite is subjected to intense heat and pressure it changes into a metamorphic rock called gneiss.

Metamorphic rocks form from the exposure to intense heat and pressure two types of metamorphism are.