Geological cross section of Quaternary and Permian rocks on top of the Carboniferous rocks in County Durham
A simple geological cross section showing the younger Quaternary and Permian rocks sitting over the Carboniferous rocks in County Durham
Key geological formations in the Carboniferous and Permian rocks along the Durham coast
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/
Distribution of Rocks across the Durham landscape
A plan view map showing the distribution of rocks across the Durham landscape • Key geological periods• The Carboniferous, Permian, Triassic , Quaternary
The Foundations of the Durham landscape: 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
https://samnoblemuseum.ou.edu/common-fossils-of-oklahoma/how-paleontologists-tell-time/geological-timescale/