Unconformity (Geological term)

An unconformity in geology is a surface that represents a gap in the Earth's geological record, indicating a period where rock layers were not deposited or were eroded away before new layers formed. It highlights a break or interruption in the sequence of sediment or rock formation, often caused by changes in environment, erosion, or tectonic activity. Unconformities help geologists understand Earth's history by revealing past events like uplift, erosion, or sea-level changes, and they serve as key markers when studying and correlating rock layers across different regions.