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IV.—Notes on the Arenig Rocks near Aberdaron, Carnarvonshire

Published online by Cambridge University Press:  01 May 2009

Charles A. Matley
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Extract

The geology of the Lleyn peninsula has from time to time attracted the attention of geologists, and several workers have added much to our knowledge of this district; but their researches have been mainly confined to (1) the strip of ancient rocks (usually assigned to the pre-Cambrian) in the west between Porth Dinlleyn and Bardsey Island, and (2) the igneous rocks lying in the Ordovician ground which occupies the eastern and larger portion of the peninsula. Thus the Ordovician sedimentary rocks have largely escaped attention, a result probably also due to their monotony, to the rarity of fossiliferous localities, and to the great extent to which the beds are concealed beneath accumulations of drift.

Type
Original Articles
Information
Geological Magazine , Volume 9 , Issue 3 , March 1902 , pp. 118 - 122
Copyright
Copyright © Cambridge University Press 1902

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References

page 120 note 1 As defined by MissElles, , Quart. Journ. Geol. Soc., vol. liv (1898), pp. 528 and 530.Google Scholar

page 120 note 2 Geol. Mag., 1880, p. 211.Google Scholar Fossils, including graptolites, were also found in the neighbourhood of Llanfaelrhys by the Geological Survey; see Ramsay, , Geol. North Wales, 2nd ed. (1881), pp. 215 and 377.Google Scholar

page 122 note 1 Barrow, G.: Quart. Journ. Geol. Soc., vol. lvii (1901), p. 342.Google Scholar