KnowraAlleghanian orogenyLinked fromLinked fromThe 7 pages that link to Alleghanian orogeny, each with the reason it gives.All 7Broader topic 4Related 2Compared with 1Appalachian MountainsBroader topic: It produced major Appalachian deformation as Pangaea assembled.Appalachian orogenyBroader topic: This final major collision joined the Appalachian region to the assembly of Pangaea.Rheic OceanBroader topic: This collision closed the ocean's western reaches and joined continental margins.Geology of the AppalachiansBroader topic: It produced much of the range’s present structural grain.