Stratigraphy and inversion tectonics in the St. Georges Channel area off SW Wales,U.K. |
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| Authors: | M R Dobson L Delanty R J Whittington |
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| Institution: | (1) University College of Wales, Aberystwyth, Dyfed, U.K.;(2) Present address: Shell-BP-Todd, New Zealand |
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| Abstract: | Transgressive Upper Cretaceous Chalk terminates (between SW Wales and SE Ireland) at approximately latitude 52°N as thinly
bedded marginal facies; while the Tertiary sequences, previously considered to extend uninterrupted into both the South Celtic
Sea area and the Nymphe Bank basin are preserved as isolated subcrops separated by Jurassic. The distinct subsidence history
of St. Georges Channel basin, as compared to the Nymphe Bank basin which both belong to the North Celtic Sea graben, is attributed
to inversion activity with the final phase occurring during the Paleogene. |
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