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II.—On the Age of the Mammalian Rootlet-bed at Kessingland1

Published online by Cambridge University Press:  01 May 2009

J. H. Blake
Affiliation:
H. M. Geological Survey of England and Wales.

Extract

In two papers, by Messrs. S. V. Wood, jun., and F. W. Harmer, recently read, before the Geological Society,—alluded to by Mr. Belt, in the GeologicalMagazine for April last,—this Rootlet-bed at Kessingland has been referred to, and described as an interglacial shallow valley deposit; of an age posterior to the Contorted Drift or Lower Boulder-clay, lying in a trough excavated out of the Chillesford Clay. To make their description more intelligible, the authors (Messrs. Wood and Harmer) subjoin a sketch-map—in their combined, paper “Observations on the Later Tertiary Geology of East Anglia,” read November 8th, 1876—and indicate by a broken line the connexion of this trough with the existing (!) valley systems of the rivers Waveney and Yare—which are here mainly cut out of the Chalky Boulder-clay and Middle Glacial Sands—thus apparently assuming that, before the Middle Glacial Sands and Chalky Boulder-clay were deposited, there were valley systems occupying much the same positions in this immediate locality as there are now, with the addition of the supposed continuation of the interglacial valley of the Waveney in a south-easterly direction to Pakefield and Kessingland.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1877

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References

page 298 note 2 The section of the Kessingland Cliff given (in the Quart. Journ. Geol. Society, vol. xxxiii. p. 137) to show this — besides being inaccurate, together with the description of it, in some important particulars—is very deceptive in appearance, owing to the distorted scale to which it is drawn (the vertical scale being about 13 times that of the horizontal), and also on account of the interval between Covehithe and Kessingland (a distance of about 2¼ miles) being abridged.

page 299 note 1 Spelt Happisburgh on Ordnance Map; but usually called Hasborough.