 Granite also intruded in the Cambrian at Low Rocky Point and Elliott Bay.The north west element was altered by the Tyennan Orogeny around .The Arthur Lineament was metamorphosed to phyllite, slate and schistose quartzite, The Burnie and Oonah Formation were folded in various ways, and the Rocky Cape Group and the Smithton Synclinorium developed cleavage texture.