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V.—Observations on the Sequence of the Glacial Beds

Published online by Cambridge University Press:  01 May 2009

S. V. Wood Jun.
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Turning now to the physical evidence, it is well known that the Moel Tryfaen bed is 1390 feet above the sea-level; and a depression which would bring the sea up to that point would, unless we suppose a great change in the relative elevations, place the Chalk many hundreds of feet beneath the sea.

Type
Original Articles
Information
Geological Magazine , Volume 7 , Issue 68 , February 1870 , pp. 61 - 68
Copyright
Copyright © Cambridge University Press 1870

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References

page 62 note 1 I think that this holds good even if we suppose the fragment to have come from one of the pink bands of the true chalk.

page 63 note 1 Quart. Journ. Geol. Soc, vol. xxv., p. 430.

page 63 note 2 With Post-glacial beds, when the Glaciers were arrested before they reached the sea, the case is different; and beds due to land ice, in their true sense, may then have accumulated, and at high elevations.

page 64 note 1 I use this term moraine for convenience, but in strictness there is little or no identity between the sub-glacier degraded material thus extruded and the supra-glacier collected material, which forms the principal part of the true Alpine moraine.

page 64 note 2 Proc. Manchr. Geol. Socy. 1842–3.

page 64 note 3 Quart. Journ. Geol Soc, vol. vii., p. 201.

page 64 note 4 The great addition, however, made to the fauna of the Middle Glacial formation since this paper was in type, seems to place this beyond question, and to prove that the Cheshire and Lancashire beds are all newer than this formation.

page 64 note 5 Quart. Journ. Geol. Soc., vol. xiv., p. 509.

page 65 note 1 Quart. Journ. Geol. Soc, vol. xvi., p. 371.

page 65 note 2 They also yield Nucula Cobboldice and Voluta Lamberti. Quart. Journal Geol. Soc, vol. xxi. p. 162.

page 66 note 1 It will have appeared from the earlier part of this paper that I use the term Post-glacial in a very different sense from that in which it is used by the Scotch, Geologists.

page 66 note 2 This seems also to have been in some degree the opinion of the late Dr. Woodward, judging from the last five lines of his paper on the Bridlington fauna. Geol. Mag., Vol. 1., p. 52.

page 66 note 3 Quart. Journ., vol. xiii., p. 280.

page 67 note 1 Geo. Mag., Vol. II., p. 347.

page 67 note 2 Quar. Jour. Geol. Soc. vol. xxi., p. 216.