A Review of the South Hewett Shelf
26 September 1999

The Sole Pit Trough is an important gas province, characterised by thick Mesozoic sediments strongly deformed by halokinesis of Upper Permian salt and by episodes of transpression and inversion on the late cretaceous and Oligocene to Miocene. The South Hewett Shelf, by contrast, is characterised by a relatively flat-lying and undeformed sequence of Upper Palaeozoic and Mesozoic sediments. This sequence thins progressively towards the south, pinching-out onto the stable basement block of the London-Brabant Massif.