National Geological Screening for a GDF - South West England region
Our work shows that we may find a suitable geological setting for a GDF in most of this subregion.
Rock can be seen at the surface in some of this subregion such as the sea cliffs, cliffs in Exmoor and in man-made excavations such as quarries or road cuttings. Combined with numerous deep boreholes and geophysical investigations, this gives us an understanding of the rocks present and their distribution.
There are slates and similar strong rocks under the whole of the subregion in which we may be able to site a GDF. We would need to do more work to find out whether these rocks have suitable properties and thicknesses.
Some of the subregion has been mined to depths below 100m for lead and silver resources north of South Molton and in the east of Exmoor. In these areas the mining is likely to have affected the way in which water moves through the rock. Also possible exploration in the future in these areas means that it is more likely that future generations may disturb a facility.
An area along the northern edge of this subregion between Minehead and Bridgwater has Petroleum Exploration and Development Licences to allow companies to explore for oil and gas. This exploration is currently at an early stage and it is not known whether oil or gas in these licence areas will be exploited. RWM will continue to monitor how this exploration programme progresses.
For further information, read the report below.
We have also produced a summary of the geological attributes of the South West England Region.