Heat, pressure, and tectonic stress are factors that change igneous and sedimentary rocks into metamorphic rocks.
Heat, pressure, and tectonic stress are factors that contribute to changing igneous and sedimentary rocks into metamorphic rocks. Metamorphic rocks form due to the physical and chemical alteration of pre-existing rocks under conditions of heat and pressure, leading to the recrystallization of minerals and the formation of new minerals.
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