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V.—Observations on the Northern Margin of Dartmoor
Published online by Cambridge University Press: 01 May 2009
Extract
Many unsolved problems still remain in connexion with Devonshire geology, and there is no more interesting area in the county than that surrounding the Dartmoor granite mass. The investigation of this part of Devonshire has not been completed by the Geological Survey, and most of the northern margin of the Moor remains undescribed.1 During 1914, 1915, and 1916 the writer at intervals spent a good deal of time in studying the metamorphosed sediments on the north side of the Moor, and although he left England with his investigations incomplete this brief account of the results obtained will, it is hoped, be of service, if only as an indication of what is to be found.
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- Copyright © Cambridge University Press 1919
References
page 413 note 1 The Lyd Valley has been dealt with by the writer in Q.J.G.S., vol. lxxi, pp. 623–38.Google Scholar A few general observations are summarized in Q.J.G.S., vol. lxxii, pp. 83–4, 1917.Google Scholar Mr. R. H. Worth has recently read a paper before the Geological Society on the Meldon area, of which only an abstract has yet appeared.
page 416 note 1 Q.J.G.S., vol. xlix, p. 380, 1893.Google Scholar
page 416 note 2 Q.J.G.S., lxxii, p. lxxxiv, 1917.Google Scholar
page 417 note 1 Mr. R. H. Worth has, since these notes were written, put forward the theory that the tuff is of an intrusive nature. I am not aware of any evidence in favour of that view unless the disconnected nature of the outcrops is considered as such. The facts noted here are entirely incompatible with the rock being anything but a true ash bed accumulated under the sea.
page 420 note 1 Restrictions connected with the War prevented me re-examining the quarry or inspecting the railway cuttings.