Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Stratigraphy is the study of rock layers (strata) and layering (stratification). It is primarily used in geology for dating and understanding geological events.
Related terms
Sedimentation: The process by which sediment accumulates in layers over time, forming strata.
The total number of fossils discovered and studied by paleontologists, which can provide information about past life forms present at different strata levels.
Relative Dating: A method used by geologists to determine if an object or event is older or younger than other objects or events without needing exact dates.