Carboniferous rocks within this area occupy the region to the south of, and contiguous
with, the Southern Pennines (see Chapter 11). The oldest Tournaisian and Visean
strata occur at outcrop within the Peak District, represented by ramp-to-shelf
carbonates (Peak Limestone Group) deposited on the Derbyshire High, a promontory
of the East Midlands Shelf, and the laterally extensive Staffordshire and Hathern
shelves. The platform carbonates of the East Midlands Shelf extend in the sub-surface
below Nottinghamshire and Lincolnshire, where the nature of the succession is based
largely upon well records and geophysical information (Strank 1987). A 23 m thick
succession of platform carbonates is recorded in the base of the Saltfleetby No. 3
Borehole [TF 4246 9135] (Hodge 2003) and at least 100 m is present in the Welton
Oilfield (Fig. 10.1). The Derbyshire High platform carbonate rocks pass into more
basinal successions in the Edale Basin to the north, the Widmerpool Trough to the
south and the Staffordshire Basin to the west, dominated by hemipelagic mudstone
and carbonate turbidites (Craven Group). The lithostratigraphical nomenclature for
the Tournaisian and Visean strata is that of Waters et al. (2009), adapted from
Aitkenhead & Chisholm (1982)
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