nf. geochemistry, study of the chemical composition of the Earth's crust

adj. geochemical, of geochemistry, of the study of the chemical composition of the Earth's crust

adj. geochemical, of the study of the chemical composition of the Earth's crust

(n.) = geochemistry.
Ex: This is an ideal textbook for undergraduate students in geochemistry.

(adj.) = geochemical.
Ex: Geochemical analyses showed a fourfold enrichment of oxidized iron and manganese from bedrock.