Abstract
THE source and depositional environment of the Cambrian sediments in the Lleyn Peninsula, North Wales, has been the subject of much dispute. Early work by Nicholas1 described some of the sedimentary structures, but their importance in relation to the palæogeography of the Welsh geosyncline was first discussed by Kopstein2 working in the Harlech Dome and later by Bassett and Walton3 in the St. Tudwal's Peninsula. Each member of the succession can be correlated with similar horizons in the Harlech Dome4.
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References
Nicholas, T. C., Quart. J. Geol. Soc., 71, 83 (1915).
Kopstein, F. P. H. W., Ph.D. thesis, Univ. Groningen (1954).
Bassett, D. A., and Walton, E. K., Quart. J. Geol. Soc., 116, 95 (1959).
Matley, C. A., and Wilson, T. S., Quart. J. Geol. Soc., 102, 1 (1946).
Knill, J. L., J. Sediment. Petrol., 29, 317 (1959).
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CRIMES, T., SLY, P. Implication of Certain Sedimentary Structures within the Cambrian Succession of the St. Tudwal's Peninsula, South-west Caernarvonshire. Nature 204, 174–175 (1964). https://doi.org/10.1038/204174a0
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DOI: https://doi.org/10.1038/204174a0
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