Other Areas
When traced northward into Denbighshire and Merionethshire the rocks change their character and become more slaty or arenaceous; they are represented in this area by the Moel Ferna Slates, the Pen-y-glog Grit, and Pen-y-glog Slates, all of which belong to the lower part of a great series (3000 ft.) of slates and grits known as the Denbighshire Grits. Similar deposits occur on this horizon still farther north, in the Lake District, where the Wenlock rocks are represented by the Brathay Flags (lower part of the Coniston Flags series), and in southern Scotland, where their place is taken by the variable Riccarton Beds of Kirkcudbright shore, Dumfriesshire, Riccarton and the Cheviots; by greywackes and shales in Lanarkshire; by mudstones, shales and grits in the Pentland Hills, and in the Girvan area by the Blair and Straiton Beds. In Ireland the Ferriters Cove Beds, a thick series of shales, slates and sandstones with lavas and tuffs in the Dingle Peninsula; the Mweelrea Beds and others in County Tipperary and County Mayo are of Wenlock age.
Read more about this topic: Wenlock Group
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