If granite undergoes high temperatures and high pressures within earth, what type of rock will be formed? assume that the granite does not melt.. a) a sedimentary rock. b) a metamorphic rock. c) magma. d) an igneous rock

Correct answer choice is :

A metamorphic rock is a consequence of a conversion of a pre-existing rock. The primary rock is reduced to very high heat and pressure, which produce distinct physical and chemical changes. Samples of these rock types comprise marble, slate, gneiss, schist.

If granite undergoes high temperatures and high pressures within Earth, the type of rock will be formed is:

(B) a metamorphic rock

Metamorphic rocks are the rocks that formed due to the influence of high temperature, high pressure, or the influence of gases from magma that can change the chemical composition of the original rock.

Granite is an example of intrusive igneous rock. Granite's physical characteristics have bright color, coarse grain, composed of dominant minerals in the form of quartz and feldspar, and a little bit of mineral mica.

The color of granite rocks consists of red, gray, white, pink, with dark granules such as dark green, dark brown, and black. This rock is very solid with an average density of 2.75 gr/cm³, so it is resistant to rock weathering, erosion, or abrasion.

Granite rocks are classified as intrusive igneous rocks which are igneous rocks formed due to the intrusion of magma. Magma intrusion is the process of penetrating magma from the earth's core through the cracks of the earth's crust but does not reach the surface.

→ Metamorphic rock types consist of:

1. Contact metamorphism is a type of metamorphic rock that changes due to high temperatures.

For example, the Limestone that turns into marble.

2. Dynamo metamorphism is a type of rock that changes because of the high pressure coming from endogenous energy for a long time.

For example, mudstone turns into slate.

3. Pneumatolytic metamorphism is a type of rock that changes due to gases from magma that change the chemical content of rocks.

For example, Quartz turns into Topaz because of fluor gas.

Subject: Geography

Chapter: The Dynamics of the Lithosphere and Its Impact on Life

Keywords: metamorphic rocks, granite, metamorphic rock types, examples of metamorphic rocks