What Are The Three Main Branches Of Petrology?

What Are The Three Main Branches Of Petrology? Petrology has three subdivisions: igneous, metamorphic, and sedimentary petrology. Igneous and metamorphic petrology are commonly taught together because they both contain heavy use of chemistry, chemical methods, and phase diagrams. What is the study of petrology? Petrology is the study of rocks – igneous, metamorphic, and sedimentary