Precambrian rocks in England and Wales south of the Menai Strait Fault System
T. C. Pharaoh, W. Gibbons, 1994. "Precambrian rocks in England and Wales south of the Menai Strait Fault System", A revised correlation of Pre-Cambrian rocks in the British Isles, W. Gibbons, A. L. Harris
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This chapter considers the Precambrian rocks that lie beneath Lower Palaeozoic strata in England and Wales, but excludes the Monian rocks exposed in Anglesey and the Llŷn Peninsula in northwest Wales (see Chapter 9). It includes the Sam Complex on Llŷn because these rocks lie immediately southeast of the Menai Strait Fault System, and they show close similarities to other basement inliers further south and southeast. Although all these rocks are grouped as late Proterozoic, given the uncertainties associated with defining the chronostratigraphical base of the Cambrian, combined with the paucity of reliable isotopic data, it is possible that some are of early Cambrian age.
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A revised correlation of Pre-Cambrian rocks in the British Isles
This second and completely revised edition of Special Report No. 6 provides a comprehensive review and report of work earned out since 1975. It emphasizes the relationship between, and the correlation of, the units in to which the Precambrian rocks of England, Ireland, Scotland, Wales and the Channel Islands have been divided The chapters also provide a comprehensive bibliography of the work on which the correlations have been based.