PHYSICAL GEOLOGY—deals with (1) the nature and properties of materials composing the earth, (2) the distribution of materials throughout the globe, (3) the processes by which they are formed, altered, transported, and distorted, and (4) the nature and development of the landscape
HISTORICAL GEOLOGY—studies the record(history) of the physical and biologic development on the earth
MINERALOGY—study of physical and chemical properties of minerals
PETROLOGY—characteristics and origin of rocks
PETROGRAPHY—lab analysis and microscopic investigation of rocks
PALEONTOLOGY—study of ancient life
STRUCTURAL GEOLOGY—deformation of rocks
STRATIGRAPHY—age relationships of rocks
GEOMORPHOLOGY—land forms
ECONOMIC GEOLOGY
PETROLEUM GEOLOGY
MINING GEOLOGY—METALLIC and
NONMETALLIC
ENGINEERING GEOLOGY
ENVIRONMENTAL GEOLOGY
HYDROLOGY
MORE SPECIALIZED BRANCHES
GEOPHYSICS
GEOCHEMISTRY
OCEANOGRAPHY
SEISMOLOGY
VULCANOLOGY