Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means change in form. The original rock (protolith) is subjected to heat (temperatures greater than 150 to 200 C) and pressure (150 megapascals (1, 500 bar)) causing profound physical or chemical change. The protolith may be a sedimentary, an igneous, or even an existing type of metamorphic rock.
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Shree Agencies (P) Ltd. (Shree Agencies (P) Ltd)
233,Shopping Center Kota 324007, Rajasthan-India, Gumanpura
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