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  • ===Lilstock Formation=== The Lilstock Formation comprises a lower argillaceous unit, the Cotham Beds (now Cotham Member) an ...
    8 KB (1,341 words) - 13:30, 30 January 2018
  • ...the rock sequence. In the Larne No. 1 borehole the succeeding rocks of the Lilstock Formation [[Media:P947940.jpg| (P947940)]] commence with the Cotham Member which cons ...
    4 KB (535 words) - 12:53, 25 September 2017
  • ...bivalves and fish faunas. Desiccation cracks in the Langport Member of the Lilstock Formation [[Media:P947940.jpg| (P947940)]] resulted from periodic exposure of the sea ...
    5 KB (754 words) - 11:49, 25 September 2017
  • ...ation) overlain by pale greenish grey mudstone with subordinate limestone (Lilstock Formation), and is about 12m thick. These thin units can be traced across the UK and ...
    7 KB (1,070 words) - 12:23, 19 June 2014
  • ...echinoids, ophiuroids and gastropods. The succeeding Cotham Member of the Lilstock Formation marks the establishment of a shallow sea with a calcareous-mud floor or, lo ...to permanent marine conditions, represented by the Langport Member of the Lilstock Formation, and the Lower Lias. ...
    11 KB (1,778 words) - 13:31, 30 January 2018
  • ...ormation (Mercia Mudstone Group), with a similar lithology. The succeeding Lilstock Formation consists of thinly bedded, grey, argillaceous and calcareous siltstone and The lagoonal and subtidal environments of Lilstock Formation times ended when marine conditions returned to north-west England towards t ...
    17 KB (2,606 words) - 12:33, 6 May 2016
  • At the top of the Rhaetian sequence, the Lilstock Formation consists of grey and grey-green mudstone with few siltstone, sandstone and ...
    20 KB (3,008 words) - 09:53, 5 May 2016