Final answer:
Stratigraphy is the branch of geology that deals with the origin, distribution, and geological history of layered rocks.
Step-by-step explanation:
Stratigraphy is the branch of geology that is concerned with the origin, distribution, and geological history of layered rocks. It focuses on the study of rock layers and layering, including sedimentary and layered volcanic rocks. Two subfields of stratigraphy are lithostratigraphy and biostratigraphy, which use different methods to determine the relative age and depositional environments of rocks.