CK12-Foundation

CK12-Foundation is a high-quality image in the Study collection, available at 2326 × 3076 pixels resolution — ideal for both digital and print use.

Understand the relative age definition to determine the chronological order of geological events. Learn how stratigraphy, cross-cutting relationships, and fossil succession help scientists sequence Earth’s history without needing exact dates. This guide explains key principles like superposition and unconformities, providing a clear overview of how researchers establish relative dating methods to reconstruct the planet's complex timeline.