sentences:  They form part of the Cheshire Basin and the Edge is one of the classic onshore localities in the UK for their study.They also provide important insights to the nature and evolution of deformation in continental clastic natural gas and petroleum reservoirs, such as those of the Rotliegend in the Southern North Sea Gas Basin and of the Sherwood Sandstone Group in the adjacent East Irish Sea Basin.Analogues for cemented cataclastic faults, which can compartmentalise reservoirs, are well displayed by the arrays of deformation bands within the Alderley outcrops.