petrology [petrologies](the study of rock) noun [UK: pɪ.ˈtrɒ.lə.dʒi] [US: pə.ˈtrɑː.lə.dʒi]Geology is divided into various branches such as mineralogy, petrology, and physical geology. = La geología se divide en varias ramas, tales como la mineralogía, petrología y geología física.
