angular unconformities

An angular unconformity is a geological feature where older rock layers are tilted or folded, then partially eroded before newer layers are deposited on top. This creates a clear boundary showing a change in the angle or orientation of the rocks, indicating a period of deformation, erosion, and subsequent sediment deposition. Essentially, it records a gap in Earth's history, highlighting a time when geological processes paused, reshaped the landscape, and then resumed. Angular unconformities help geologists understand the sequence and timing of Earth's geological events.