Schofield, D.I.; Ambrose, K.; Barron, A.J.M.; Hopson, P.M.; Mathers, S.J.; Myers, A.H.; Waters, C.N.; Terrington, R.L.. 2012 A geological fence diagram for England and Wales. Nottingham, UK, British Geological Survey, 33pp. (OR/12/081) (Unpublished)
This report contains a brief description of the data and methodology used to
compile the National Geological Fence Diagram (NGFD). The NGFD comprises
a network of intersecting geological cross-sections covering England and
Wales, to a minimum depth of 1 km and a total section length of approximately
5,500 km. It was compiled by the British Geological Survey (BGS) on behalf of
the Environment Agency (EA) and is based upon lines of section agreed
between both parties at the inception of the project. The model includes
generalised bedrock strata based principally on the BGS 1:625 000 scale digital
geological data and superficial deposits greater than 10m in thickness.
Additional sources of model data were also considered, largely taken from
published BGS data holdings. In total 41 cross-sections were constructed and
geologically correlated within the GSI3D software.
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