Metamorphic rock is just one of the three types of rock that is found on Earth. This rock is formed through intense pressure and heat applied to a rock.Answer and Explanation: The rock that has the highest metamorphic grade is gneiss. Gneiss is a metamorphic rock that has foliation, or a...
These high-grade zones are closely associated with the gneissose granitic rocks, suggesting that the Ryoke metamorphism, one of the typical low-pressure type, is caused by the heat supply from the syn-tectonic granitic rocks that emplaced at the middle level of the crust....