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Clarification of the Polyphase Deformations of North Wales Palaeozoic Rocks

Published online by Cambridge University Press:  01 May 2009

Bryan D. T. Lynas
Affiliation:
Britannia Beach, Vancouver, British Columbia, Canada

Summary

Recent detailed mapping to the north-east of the Harlech Dome in North Wales has produced clear evidence of an early deformation. Thus four distinct deformations can be recognised in the Welsh Caledonides, and their resultant structures are described.

Type
Articles
Copyright
Copyright © Cambridge University Press 1970

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References

REFERENCES

Bromley, A. V. 1969. In Wood, A. (Ed.): The Precambrian and Lower Palaeozoic Rocks of Wales. University of Wales Press, Cardiff.Google Scholar
Fearnsides, W. G. 1910. Excursion to North Wales. Proc. Geol. Ass. 21, 368390 (esp. p. 383).CrossRefGoogle Scholar
Fearnsides, W. G.& Davies, W. 1944. The Geology of Deudraeth. The country between Traeth Mawr and Traeth Bach, Merioneth. Q. Jl geol. Soc. Lond. 99, 247276 (esp. p. 257).CrossRefGoogle Scholar
Helm, D. G., Roberts, B. & Simpson, A. 1963. Polyphase folding in the Caledonides south of the Scottish Highlands. Nature. Lond. 200, 10601062.CrossRefGoogle Scholar
Matley, C. A. & Wilson, T. S. 1946. The Harlech Dome, north of the Barmouth estuary. Q. Jl geol. Soc. Lond. 102, 140, PL II.CrossRefGoogle Scholar
Maxwell, J. C. 1962. Origin of slaty and fracture cleavage in the Delaware Water Gap Area, New Jersey, and Pennsylvania. pp. 281311 in ‘Petrologic Studies’, Geological Society of America, Buddington Volume.Google Scholar
Ramsay, A. C 1866. The Geology of North Wales. Mem geol. Surv. U.K. 3, p. 235.Google Scholar
Rast, N 1969. In Wood, A. (Ed.): The Precambrian and Lower Palaeozoic Rocks of Wales. University of Wales Press, Cardiff.Google Scholar
Roberts, B. 1967. Succession and structure in the Llwyd Mawr syncline, Caernarvonshire, North Wales. Geol. J. 5 (Part 2), 369389.CrossRefGoogle Scholar