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The Coniston Group is a Silurian lithostratigraphic group (a sequence of rock strata) in the southern Lake District and north-west Pennines of northern England. The name is derived from the small town of Coniston in Cumbria. The rocks of the Group have also previously been referred to as the Coniston Grits or Coniston Grits Formation and Coniston Subgroup. The group comprises and and some laminated which achieve a thickness of between 1400 and 1900m. Overlain by the Bannisdale Formation of the Kendal Group and underlain by the Wray Castle Formation of the Tranearth Group, it is divided into several formations. These are, in ascending order (oldest first): Wray Castle, Gawthwaite, Latrigg, Poolscar, Moorhow (or Moorhowe) and Yewbank.
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