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Plutonism
Theory that the igneous rocks forming the Earth originated from intrusive magmatic activity, with weathering/erosion wearing away rocks, which were then deposited on the sea bed, re-formed into layers of sedimentary rock, and raised again
Plutonism is the geologic theory that the igneous rocks forming the Earth originated from intrusive magmatic activity, with a continuing gradual process of weathering and erosion wearing away rocks, which were then deposited on the sea bed, re-formed into layers of sedimentary rock by heat and pressure, and raised again. It proposes that basalt is solidified molten magma. Wikipedia