Earth's churning mantle may have created the Great UnconformityT1Covered by 1 source · first reported by Ars Technica at 06 Nov, 20:24 UTCExplaining the Great Unconformity, where Cambrian deposits sit on top of older rocks.SourcesT1Earth's churning mantle may have created the Great UnconformityArs Technica06 Nov, 20:24