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protolith
protolith
Noun
pl: protoliths
This term is used exclusively within the specialized field of geology and petrology. It describes the precursor material of a metamorphic rock, serving as the starting point for analyzing the chemical and structural changes that occur during metamorphism.
Because it refers to a specific geological entity, it is used in a technical, descriptive register. It is rarely encountered outside of academic papers, textbooks, or professional geological surveys.
Meanings
Related Words
metamorphismrockgeologymineralsedimentigneoussedimentarymetamorphiclithologycrystallizationrecrystallizationpressuretemperaturefoliationschistgneissslatephyllitemarblequartzitelimestoneshalesandstonebasaltgranitegabbroandesiterhyolitedioriteperidotitemagmalavacrustmantletectonicssubductionintrusionextrusiveintrusivefaciesgradegarnetstaurolitekyanitechloritebiotitemuscovitefeldsparpyroxeneamphiboleolivinequartzcalcitedolomitealterationdeformationstrainstresslithificationdiagenesismetasomatismpetrologypetrographystratigraphygeochemistryisotopemineralogy