Paul Dennis edited geology2.tex  over 8 years ago

Commit id: 354aaf62bfb2feebc6c7e3dc182510d99ccec1ae

deletions | additions      

       

The seismic profile and section shown in Figure 2 is taken across the north margin of the platform. The lack of internal deformation in the Edale Basin sediments is evident in the section and the present basin topography is essentially unchanged from the end of the Visean. Whilst there is no extant thermal modelling of the Edale Basin recent work has been done on the Widmerpool Gulf to the south of the Derbyshire Platform. This is part of ongoing assessment of the shale gas resource potential of the Bowland-Hodder unit. For the Widmerpool Gulf a maximum burial depth of 3.6km for the base of the Bowland-Hodder shale unit is estimated to have been reached at the Carboniferous-Permian boundary. A high heatflow in excess of 70$\mu$W.m^{-2} ensured that a geothermal gradient of close to 50$^{\circ}$.km^{-1} was sustained with maximum temperatures close to 200$^{\circ}$C at