What is the study of the chemical composition of, and of actual or possible chemical changes in, the crust of the earth. -- Ge`o*chem"ic*al (#), a. --Ge`o*chem"ist (#), n called?

geochemistry — The study of the chemical composition of, and of actual or possible chemical changes in, the crust of the earth. -- Ge`o*chem"ic*al (#), a. --Ge`o*chem"ist (#), n. (Webster's 1913.)

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