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• Penarth Group, Permo-Triassic, Bristol and Gloucester region
  ===Westbury Formation=== ...resence of fragments or pebbles of the underlying rocks in the base of the Westbury Formation shows that the former suffered erosion prior to the deposition of the black
  8 KB (1,341 words) - 13:30, 30 January 2018
• Penarth Group, Triassic, Northern Ireland
  In the Larne No. 1 borehole the Westbury Formation [[Media:P947940.jpg| (P947940)]] consists of about 8.5m of black and dark g
  4 KB (535 words) - 12:53, 25 September 2017
• Bedrock Geology UK South: Triassic
  ...The Penarth Group comprises dark grey mudstone with subordinate sandstone (Westbury Formation) overlain by pale greenish grey mudstone with subordinate limestone (Lilsto
  7 KB (1,070 words) - 12:23, 19 June 2014
• Mercia Mudstone Group, Permo-Triassic, Bristol and Gloucester region
  ...dentical to the remainder of the Grey Marl and markedly different from the Westbury Formation, and the term has been abandoned.
  12 KB (1,906 words) - 13:28, 30 January 2018
• Triassic, Palaeogene volcanic districts of Scotland
  ...a philipiana?, Modiolus minimus?) and these beds have been assigned to the Westbury Formation of the Rhaetian Penarth Group.
  9 KB (1,353 words) - 11:29, 1 February 2018
• OR/15/044 Modelled surfaces/volumes
  | Westbury Formation
  13 KB (1,679 words) - 15:48, 18 October 2018
• Triassic and Jurassic environment and lithostratigraphy, Northern England
  .... In the Carlisle Basin, boreholes in the Great Orton area have proved the Westbury Formation, resting unconformably on the Blue Anchor Formation (Mercia Mudstone Group)
  17 KB (2,606 words) - 12:33, 6 May 2016
• OR/15/035 Appendix 2 - Projects GVS
  | WESTBURY FORMATION
  15 KB (1,753 words) - 09:30, 8 March 2016
• Permian—Triassic of Wales
  ...following deposition of the Blue Anchor Formation. The lowest strata, the Westbury Formation, consist of dark grey, fissile, pyritous mudstone with a few thin beds of l ...Langport Member [[Media:P916202.jpg|(P916202)]]. The junction between the Westbury Formation and the Cotham Member is sharp and locally channelled, up to 40 cm dee
  20 KB (3,008 words) - 09:53, 5 May 2016
• Permo-Triassic, its classification and conditions of deposition, Bristol and Gloucester region
  ...a, which appears in greatest numbers and variety in the black shale of the Westbury Formation, consists largely of thin-shelled bivalves, associated with echinoids, ophi
  11 KB (1,778 words) - 13:31, 30 January 2018
• OR/12/032 Geohazards
  ...ion gulls associated with cambering of Blue Lias Formation limestones over Westbury Formation and Cotham Member (Penarth Group) clays and mudstones, and Mercia Mudstone
  69 KB (9,796 words) - 09:48, 29 November 2019