Petrology

[pi'trɒlәdʒi]

(noun.) the branch of geology that studies rocks: their origin and formation and mineral composition and classification.

艾格尼丝編輯--From WordNet

(n.) The department of science which is concerned with the mineralogical and chemical composition of rocks, and with their classification: lithology.

(n.) A treatise on petrology.

西莉亚手打