Geology of Tyne and Wear

This article describes the geology of the metropolitan county of Tyne and Wear in northeast England. It includes the cities of Newcastle upon Tyne and Sunderland and the modern metropolitan boroughs of Gateshead, North Tyneside and South Tyneside. Prior to 1974 that part of the county north of the River Tyne was a part of the historic county of Northumberland whilst that to the south was a part of County Durham

The geology of Tyne and Wear in northeast England largely consists of a suite of sedimentary rocks dating from the Carboniferous and Permian periods into which were intruded igneous dykes during the later Palaeogene Period.^[1]