GENERAL GEOLOGY

Detailed explanation-1: -Answer: The process of transformation of rock of one type into another is called as metamorphism. Explanation: Metamorphism : Metamorphism is the process of conversion of one type of rocks into another type under the effect of high temperature and pressure.

Detailed explanation-2: -Igneous and metamorphic rock can be buried and undergo tremendous heating and stress.

Detailed explanation-3: -Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.

Detailed explanation-4: -Transformation of rocks from one form to another is called the rock cycle. For example, molten magma cools and becomes an igneous rock. It then breaks down into sediments and then forms a sedimentary rock under great pressure. The same rock can become a metamorphic rock when subjected to great heat and pressure.

Detailed explanation-5: -Metamorphic rocks: form by recrystallization of either igneous or sedimentary rocks. This happens when the temperature, pressure or fluid environment change and a rock changes its form (e.g. limestone turns to marble). The range of temperatures for metamophism is 150C up to the melting temperature.