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III.—On a Soda Felspar Rock at Dinas Head, North Coast of Cornwall1

Published online by Cambridge University Press:  01 May 2009

Extract

Dinas Head is a promontory 4 miles west of Padstow, jutting out into the sea from Trevose Head, and separated from it by an isthmus about 100 feet above sea-level, which is washed clear of soil by the ground seas which sweep over it from the north. The headland is 165 feet above sea-level at its highest point, and is almost as broad from north to south as it is long from east to west. The base and foreshore of the headland appear to be entirely composed of greenstone containing much calcite. The microscope shows it to be probably an altered dolerite.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1895

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Footnotes

1

Read at the British Association Meeting, Oxford, August 10th, 1894.

References

page 14 note 1 Vide, Brit. Petrology, Teall, pp. 217219.Google Scholar

page 17 note 1 We find similar bands of dark chert, rolled with dark calcareous rock, at Cataclews Point, 1½ miles east of Dinas Head.

page 20 note 1 Kayser, , Hartz Z. Geol. Ges. xxii. 1870, p. 103.Google Scholar