Seaham

Key geological formations in the Carboniferous and Permian rocks along the Durham coast

Table: Key geological formations

Key geological formations in the Carboniferous and Permian rocks along the Durham coast The bedrock geology of Durham and North Yorkshirehttps://historicengland.org.uk/images-books/publications/building-stones-england-durham-tyne-and-wear-tees-valley/bse-durham-tyne-and-wear-tees-valley/ https://historicengland.org.uk/images-books/publications/building-stones-england-durham-tyne-and-wear-tees-valley/bse-durham-tyne-and-wear-tees-valley/

The Foundations of the Durham landscape: Key geological periods

Table: Key geological periods

The Foundations of the Durham landscape: Key geological periods • Carboniferous (359-299 million yrs old)• Permian (299 -252 million yrs old)• Triassic   (252-201 million yrs old)• Neogene/Quaternary (2.6-0 million yrs old) https://www.bgs.ac.uk/discovering-geology/fossils-and-geological-time/geological-timechart/

Geological timescale

Diagram: Geological timescale

https://samnoblemuseum.ou.edu/common-fossils-of-oklahoma/how-paleontologists-tell-time/geological-timescale/