"The group comprises a varied assemblage of marine clastic rocks, calcareous siltstone and limestone, and includes a number of volcanic units. The group is wholly divided into formations, but many are thin and so, on many of the Geological Survey maps, the group is depicted undivided, or partially divided. \r\n\r\nCaradoc and Ashgill."@en . . "The mudstone-dominated successions in the Cross Fell, and Cautley and Dent inliers are up to 450 and 370 m thick respectively, whereas the mainly carbonate part of the succession in the Lake District varies from 20 to about 120 m (Burgess and Holliday, 1979; Millward et al., 2000). However, thickness in the Lake District is inflated locally by the inclusion of thick basal units of conglomerate and sandstone that reach 580 m in the Ulverston area and 685 m in the Kentmere to Longsleddale area, though the latter thickness also includes up to 180 m of extrusive volcanic rocks (Lawrence et al., 1986; Johnson et al., 2001)."@en . "Coniston Limestone Series [Obsolete: use DNT]"@en . . . . . . "Coniston Limestone Group [Obsolete: use DNT]"@en . "Dent Group"@en . . "stable"@en . . "DNT"@en . "Calcareous mudstone with subsidiary calcareous sandstone, limestone, mudstone, pyroclastic-rock, rhyolite lava, sandstone and siltstone. Stratified bedrock. Occurs onshore. Deposited during the Caradoc Series - to - Ashgill Series (Ordovician Period) (458.2-443.1 Ma BP)."@en . "Coniston Limestone [Obsolete: use DNT]"@en . . . . . "458.2"^^ . . . . . "At the top of the group an abrupt transition into distinctive mudstone of the overlying Stockdale Group is seen at the base of the Spengill Mudstone Member of the Skelgill Mudstone Formation."@en . "The base of the Dent Group is diachronous across the unconformity on the underlying Caradoc volcanic rocks (Brenchley and Rawson, 2006, fig. 5.15)."@en . . . . . "Dent Group"@en . . . . . . "Coniston Limestone Formation [Obsolete: use DNT]"@en . . "443.1"^^ .