Dinantian and namurian stratigraphy east and south-east of leek, north staffordshire

Abstract

The stratigraphical succession of the Dinantian and Namurian rocks in an area east and south-east of Leek is described. New terms (Mixon Limestones-with-Shales, Hamps Shales, Morredge Sandstones Cloughmeadow Mudstones, Shirley Hollow Sandstones and Harston Grit) are introduced for parts of the succession which have not previously been described in detail. The restriction of the use of the term Churnet Shales by Hudson is discussed and is considered to have been unjustified. Within the area facies changes are shown to occur in the Upper Dinantian (Onecote Sandstones) and in the Namurian. Numerous new fossiliferous outcrops are recorded and faunal lists are given. Goniatite faunas collected from many of these localities permit a more detailed zoning of the strata of this area than has hitherto been possible. Because of poor exposure and the type of facies present the faunal succession is incomplete, but it is probable that there is a complete stratigraphical succession in the area from Upper Dinantian (P 1) times to the end of the Namurian.