Geology is a very broad field, but within it, there are specific areas that focus on different aspects of rocks, such as:
* Petrology: The study of rocks and their formation.
* Mineralogy: The study of minerals, which make up rocks.
* Structural Geology: The study of the deformation and structures of rocks.
* Geochemistry: The study of the chemical composition of rocks.
* Paleontology: The study of fossils found in rocks.
So, while geology encompasses the overall study of rocks, there are many specialized areas within it.