The BGS Lexicon of Named Rock Units — Result Details

Dent Group

Computer Code: DNT Preferred Map Code: DNT
Status Code: Full
Age range: Ashgill Series (OA) — Ashgill Series (OA)
Lithological Description: Varied assemblage of shallow marine clastic lithologies and limestone, pyroclastic rocks and rhyolitic lava.
Definition of Lower Boundary: Unconformably overlies the Borrowdale Volcanic Group.
Definition of Upper Boundary: Unconformably overlain by the Skelgill Formation of the Stockdale Group.
Thickness: About 100m
Geographical Limits: Southern Lake District and north-west Pennines.
Parent Unit: Windermere Supergroup (WIN)
Previous Name(s): Coniston Limestone Group [Obsolete Name And Code: Use DNT] (COL)
Coniston Limestone Series (-4563)
Coniston Limestone Formation (-4003)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Cautley and Dent inliers. 
Reference(s):
McNamara, K J. 1979. The age, stratigraphy and genesis of the Coniston Limestone Group in the southern Lake District. Geological Journal, 14, 41-69. 
Moseley F. 1984. Lower Palaeozoic lithostratigraphical classification in the English Lake District. Geological Journal, Vol. 19, p. 239-247. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E038 E048 E039