Information About

Protolith




Granitoids can for instance be derived through melting of a Sedimentary rock, and thus have a sedimentary protolith, or be derived from a Magma tic precursor, and thus have a magmatic protolith.

Metamorphic Rocks can be derived from any other rock and thus have a wide variety of protoliths.

Identifying a protolith is a prime aim of metamorphic geology and igneous geology.