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  • ...in this district. The upper boundary of this unit is gradational into the Mercia Mudstone Group above. ===== Mercia Mudstone Group (MMG) ===== ...
    1 KB (203 words) - 15:20, 28 July 2015
  • ...d into the Sherwood Sandstone Group (formerly the ‘Bunter Sandstone’), the Mercia Mudstone Group (formerly the ‘Keuper Marl’) and the Penarth Group (formerly the ‘Rhaetic’) :[[Mercia Mudstone Group, Triassic, Northern Ireland|Mercia Mudstone Group]] ...
    2 KB (252 words) - 13:07, 25 September 2017
  • Thumbnail for File:P210568.jpg
    |description={{en|1=Plate 8 Mercia Mudstone Group and Penarth Group successions (late Triassic) A. Aust Cliff, Avon (A10669). ...
    (1,375 × 993 (607 KB)) - 11:41, 22 January 2018
  • Thumbnail for File:P211340.jpg
    |description={{en|1=Plate 8 Mercia Mudstone Group and Penarth Group successions (late Triassic) B. Blue Anchor, north Somerse ...
    (1,400 × 1,107 (1.39 MB)) - 11:41, 22 January 2018
  • Thumbnail for File:P212583.jpg
    ...ide area. The Arden Sandstone Member is of Triassic age and belongs to the Mercia Mudstone Group. It is well known for its relatively diverse flora and fauna with plant rem ...
    (1,000 × 666 (551 KB)) - 10:00, 20 May 2014
  • ...bnail|The Waterloo foreshore near Larne showing the Collin Glen Formation (Mercia Mudstone Group) in foreground overlain by the Penarth Group. (P948009)]] ...947940)]]. The Penarth Group at Larne rests disconformably on rocks of the Mercia Mudstone Group [[Media:P948009.jpg| (P948009)]] and is conformably succeeded by the Waterl ...
    4 KB (535 words) - 12:53, 25 September 2017
  • Thumbnail for File:P948009.jpg
    ...={{|1=The Waterloo foreshore near Larne showing the Collin Glen Formation (Mercia Mudstone Group) in foreground overlain by the Penarth Group. From: Photograph 4. Mitchell, ...
    (1,400 × 1,050 (1.22 MB)) - 18:50, 12 September 2017
  • == Depositional environment (Mercia Mudstone Group, Penarth Group, Waterloo Mudstone Formation) == [[File:P947851.jpg|thumbnail|Depositional model for the Mercia Mudstone Group (17). (P947851)]] ...
    5 KB (754 words) - 11:49, 25 September 2017
  • ...abkha flats. The facies is markedly diachronous, persisting throughout the Mercia Mudstone Group wherever it onlaps the Palaeozoic rocks, but crops out only around Wick in The red mudstone of the undivided Mercia Mudstone Group grades rapidly up into the Blue Anchor Formation (BAn), an up to 5 m-thick ...
    5 KB (747 words) - 13:20, 2 December 2015
  • Thumbnail for File:P947851.jpg
    |description={{|1=Depositional model for the Mercia Mudstone Group (17). From: Figure 10.5B. Mitchell,W. I. (ed.). 2004. The geology of Northe ...
    (1,400 × 806 (281 KB)) - 18:23, 12 September 2017
  • == Mercia Mudstone Group == ...il|Fossils 5-11 Mid- to Late Triassic (Anisian-Carnian) miospores from the Mercia Mudstone Group in the Larne No. 2 borehole: 5 Guttulapollenites hannonicus, 6 Verrucosispo ...
    5 KB (786 words) - 12:46, 25 September 2017
  • ...ch is strongly downfaulted against the Palaeozoic rocks. South of this the Mercia Mudstone Group margin is unfaulted and the limits of the main sandstone sequence beneath a ...
    4 KB (617 words) - 13:31, 30 January 2018
  • Thumbnail for File:P948077.jpg
    ...|1=Fossils 5-11 Mid- to Late Triassic (Anisian-Carnian) miospores from the Mercia Mudstone Group in the Larne No. 2 borehole: 5 Guttulapollenites hannonicus, 6 Verrucosispo ...
    (1,400 × 914 (675 KB)) - 19:13, 12 September 2017
  • == Mercia Mudstone Group [https://www.bgs.ac.uk/lexicon/lexicon.cfm?pub=MMG (MMG)] == ...
    4 KB (521 words) - 15:21, 26 July 2021
  • ...ned extensively causing subsidence in places. The maximum thickness of the Mercia Mudstone Group, about 1340m, was proved in a borehole at Prees in the Cheshire Basin. ...f Wales. The Blue Anchor Formation ('''Plate P579282''') at the top of the Mercia Mudstone Group marks the beginning of this process. It consists of greenish grey dolomitic ...
    7 KB (1,070 words) - 12:23, 19 June 2014
  • The younger Mercia Mudstone Group comprises massive red-brown dolomitic mudstones with gypsum either in veins ...
    1 KB (189 words) - 08:35, 18 February 2016
  • ...ent drilling has indicated the presence of an extensive saltfield in the [[Mercia Mudstone Group, Permo-Triassic, Bristol and Gloucester region|Central Somerset Basin]]. Gy ...
    4 KB (531 words) - 13:22, 30 January 2018
  • == Mercia Mudstone Group (Triassic) of England and Wales – a review 2 – revised lithostratigraphical ...ngton, G, Ambrose, K, and Rees, J G. 2008. A formational framework for the Mercia Mudstone Group (Triassic) of England and Wales. British Geological Survey Research Report, ...
    13 KB (1,836 words) - 15:26, 26 July 2021
  • ...-means cluster analysis of normalised gamma-ray and sonic log data for the Mercia Mudstone Group of the Winterborne Kingston borehole. Seven centroids have been pre- select ...ross-plots show normalised gamma-ray, sonic and density curve data for the Mercia Mudstone Group of the Winterborne Kingston Borehole. ...
    4 KB (679 words) - 09:54, 18 May 2021
  • ...e Formation but it is inferred to be present everywhere at the base of the Mercia Mudstone Group in this region (Warrington et al., 1980<ref name="Warrington 1980"></ref>). ...andstone Formation had been mapped in two fault blocks but overlain by the Mercia Mudstone Group with no Tarporley Siltstone Formation delineated. This necessitated fieldwo ...
    3 KB (516 words) - 15:48, 18 October 2018
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