EntityQ502899· pop 14· linked from 200 articlesoutlierSign in to savearea of younger rock completely surrounded by older rocksConnectionsMaliCountrySenegalCountryWalesEntitygeologyEntityrockEntityGreat BritainEntityInternational Standard Book NumberEntitylimestoneEntityTriassicEntityerosionEntityDevonianEntitysandstoneEntitySilurianEntityOrdovicianEntityCarboniferousEntityStaffordshireEntityNorth YorkshireEntityfaultEntityCape Breton IslandEntityfoldEntityCategoriesPetrologyRock formations