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III.—The Late Glacial Gravels of the Vale of Edeyrnion, Corwen, North Wales

Published online by Cambridge University Press:  01 May 2009

Extract

The Corwen gravels were described by D. Mackintosh, forty-three years ago, in a paper “On the mode of Occurrence and Distribution of Beds of Drifted Coal near Corwen, North Wales”. He attributed the gravels to an interglacial marine submergence and claimed that the coal found in them was derived from the outcrop of Coal-measures near Kuabon, twelve miles due east of Corwen.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1919

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References

page 312 note 1 Characteristics of British Earthquakes”: Geol. Mag., Vol. VII, pp. 410–19, 1910.Google Scholar

page 312 note 2 Quart. Journ. Geol. Soc., vol. xxxii, pp. 451–3, 1876.Google Scholar

page 312 note 3 Summary of Progress for 1914 (Mem. Geol. Surv.), 1915, p. 17; and for 1915 (Mem. Geol. Surv.), 1916, pp. 11, 12.Google Scholar

page 313 note 1 Geology of the Country between Newark and Nottingham (Mem. Geol. Surv.), 1908, pp. 73–6.Google Scholar

page 314 note 1 Summary of Progress for 1915 (Mem. Geol. Surv.), 1916, pp. 11, 12.Google Scholar

page 314 note 2 Op. cit., p. 12.

page 315 note 1 In a north-easterly direction towards Bryn Eglwys the boulder-clay is associated with very little sand or gravel, but makes good drumlin scenery. The exceptions are some morainic sands and gravels in the valley at Bryn Eglwys and near the southward bend of the Afon Morwynion, north of the Carrog Gap.

page 316 note 1 In pre-Glacial days a south-flowing tributary of the Dee must have risen in this valley and have made a near approach to capturing the head-waters of the Clwyd.

page 317 note 1 The Geology of the Neighbourhood of Flint, Mold, and Ruthin (Mem. Geol. Surv.), 1890, pp. 1016.Google Scholar