Lime, sand and coal – the Carboniferous
The lecture slides for the class can be found here: 2012_GHB_Lect6_bw
An overview of the Carboniferous period is provided on the Natural England website here.
A free publication on the geology of the North Pennines can be found here.
A brief overview of the Yoredale Group in Northumberland National Park can be found here.
The story of Carboniferous oil and the first well in mainland Britain can be found here.