* Mineralogy: The study of minerals, their properties, and how they form.
* Petrology: The study of rocks, including their composition, origin, and classification.
* Structural geology: The study of the deformation and structures within the Earth's crust, such as faults, folds, and joints.
* Geomorphology: The study of landforms and how they are shaped by various geological processes, such as erosion, weathering, and deposition.
* Tectonics: The study of the movements and interactions of the Earth's tectonic plates.
* Volcanology: The study of volcanoes, their eruptions, and the formation of volcanic rocks.
* Seismology: The study of earthquakes, their causes, and the effects of seismic waves.
* Hydrogeology: The study of groundwater, its movement, and its interaction with the Earth's surface.
Physical geology is often contrasted with historical geology, which focuses on the history of the Earth and the life that has inhabited it.
So, while geology is a broad field, physical geology is a distinct and important branch that deals with the physical processes that shape our planet.
