GENERAL GEOLOGY

Detailed explanation-1: -Metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock. The parent rock can be either sedimentary, igneous, or even another metamorphic rock. The word “metamorphic” comes from Greek and means “To Change Form".

Detailed explanation-2: -The two major sources of energy for the rock cycle are also shown; the sun provides energy for surface processes such as weathering, erosion, and transport, and the Earth’s internal heat provides energy for processes like subduction, melting, and metamorphism.

Detailed explanation-3: -When granite is subjected to intense heat and pressure, it changes into a metamorphic rock called gneiss. Slate is another common metamorphic rock that forms from shale.

Detailed explanation-4: -Heat inside the Earth from radioactive decay of elements and residual heat leftover from Earth’s formation. This heat drives plate tectonics and parts of the rock cycle. The geological processes through which the three main rock types (igneous, metamorphic, and sedimentary) transform from one type to another.

Detailed explanation-5: -We can classify these processes based on their energy sources: internal energy and external energy. Internal energy drives plate tectonics and produces magmas that cool to form igneous rocks.