GENERAL GEOLOGY

Detailed explanation-1: -Physical geology covers mainly inorganic components, such as structural geology, stratigraphy, sedimentology, petrology, geophysics, minerology, geochemistry and geomorphology.

Detailed explanation-2: -Mining geology and petroleum geology are universally recognized as branches of economic geology. Since water is a mineral, ground-water geology is properly considered as a third branch of economic geology.

Detailed explanation-3: -Hence petrology deals with the mode of formation, structure, texture, composition, occurrence, and types of rocks. This is the most important branch of geology from the civil engineering point of view.

Detailed explanation-4: -Petrology is the branch of geology concerned with the compositions, structures, and origins of rocks. Petrologic research involves both field studies and laboratory studies. It is a hybrid science that involves aspects of chemistry, mineralogy, physics, geological mapping, and sometimes biology.