GEOLOGY

Detailed explanation-1: -New minerals are created either by rearrangement of mineral components or by reactions with fluids that enter the rocks. Pressure or temperature can even change previously metamorphosed rocks into new types. Metamorphic rocks are often squished, smeared out, and folded.

Detailed explanation-2: -If there is too much heat or pressure, the rock will melt and become magma. This will result in the formation of an igneous rock, not a metamorphic rock. Consider how granite changes form. Granite is an igneous rock that forms when magma cools relatively slowly underground.

Detailed explanation-3: -Hydrothermal Metamorphism Rocks that are altered at high temperatures and moderate pressures by hydrothermal fluids are hydrothermally metamorphosed. This is common in basaltic rocks that generally lack hydrous minerals.

Detailed explanation-4: -Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism.

Detailed explanation-5: -Metamorphism is the addition of heat and/or pressure to existing rocks, which causes them to change physically and/or chemically to become a new rock. Metamorphic rocks may change so much that they resemble the original rock. Any type of rock – igneous, sedimentary, or metamorphic – can become a metamorphic rock.