ANGULAR UNCONFORMITY: A QUICK OVERVIEW An angular unconformity is a geological feature where younger sedimentary rocks lie on top of older, tilted, or folded rocks, creating an angle between the two layers. This indicates that deposition, tilting, erosion, and renewed deposition occurred over a long period. Examples: The Siccar Point in Scotland: classic example studied by James Hutton. The Grand Canyon in the USA: shows tilted Proterozoic rocks beneath horizontal Paleozoic layers. Follow Geomar