Category:12. East Anglia and adjoining areas
This account provides a broad perspective of the geology of East Anglia and adjoining areas, which includes the counties of Norfolk, Suffolk, Cambridgeshire and parts of Lincolnshire and Bedfordshire. Figure P902251 provides a geological sketch map of this region showing the rock types occurring in relation to the major towns and cities. East Anglia’s relatively flat and rolling landscape, mainly less than 100 m above sea level, provides a rich agricultural setting and contains an interesting geological story. This account sketches out the geology to a depth of at least a kilometre and summarises the current and historical use of the geological resources in the region.
The surface geology of the region is known from quarries, coastal cliffs and shallow boreholes. At greater depths, below about 250 m, our direct knowledge comes from about 50 deep boreholes spread fairly evenly across the region. The deepest of these go down over a kilometre, and most were drilled to explore for water or coal. Geophysical surveys, carried out on land or by low flying aircraft, reveal patterns of the Earth’s gravity and magnetic field, and these also give us clues as to the deeper geology of the region. East Anglia is not known to contain oil, gas, coal or metal resources at depth, and there has been no deep mining within the region. As a result detailed information on the deep geology is sparse.
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