3D geological model report of the bedrock geology underlying the Gateshead area - Project Groundwater Northumbria

This report has been produced by the British Geological Survey (BGS) on behalf of Project Groundwater Northumbria, the Flood and Coastal Resilience Innovation Programme (FCRIP) project led by Gateshead Council. It provides background and methodological information on the development of a 3D geological model of the bedrock strata and of major faults in the Gateshead area. The model covers an area approximately 13 km by 18 km and has a vertical accuracy of +/- 1 to 10 m. The 3D geological model described here uses historical subsurface data including borehole records and geological maps held by the BGS and seam plan data held by the Mining Remedation Authority / Coal Authority (CA) and represents our current understanding of the bedrock and coal seam geometry. The model will be used to understand both spatial variations in recharge to the bedrock aquifers and highlight areas where outflow from coal seams or historic mine workings may increase risks of groundwater flooding and/or interact with surface water systems and shallow superficial aquifers