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  • ...ase of the hollow that has been cut down into the Carboniferous Abercriban Oolite Supgroup which is underlain by the Cwmyniscoy Mudstone Formation (‘lower ...h the east and west. The contact of the Cwmyniscoy Mudstone and Abercriban Oolite formation in this area may influence the occurrence of springs and seepages
    10 KB (1,395 words) - 08:16, 5 April 2016
  • ...Glamorgan, where they comprise two thick bioclastic units separated by an oolite. The group thins from about 500 m to some 120 m across the Vale o ...lly with skeletal grainstones and well developed cross-stratification. The oolite thins from the north side of the Vale of Glamorgan into the Gower where it
    15 KB (2,153 words) - 10:53, 5 May 2016