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II.—On the Age of the Stratified Deposits, with Mammalian Remains at Crofthead, near Glasgow

Published online by Cambridge University Press:  01 May 2009

James Geikie
James Geikie
Affiliation:
District Surveyor of the Geological Survey of Scotland.
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Extract

In the GeologicalMagazine for September, 1868, I described a section of Drift deposits which, had been exposed in the cutting of the ‘Kilmarnock and Crofhead Extension Railway.’ If the reader refers to that paper he will fine it stated that the Lower Boulder-clay of the locality in question contains certain intercalated beds of clay, sand, and gravel which, have yielded Bos primigenius. Quite recently the remains of the horse and the great Irish deer have been met with in the same deposits. In the present paper I do not mean to say more about the character of the stony clay which overlies the beds with mammalian remains. There can be no doubt whatever that it is truly Boulder-clay. But as I understand that several members of the Glasgow Geological Society have since visited the section, and, while agreeing with me as to the glacial origin of the overlying Till, have yet expressed an opinion that this bed is not in its natural position, but has slipped down upon the stratified deposits from the adjacent hill-slope, it may be well to point out how all the facts are against such a supposition.

Type
Original Articles
Information
Geological Magazine , Volume 7 , Issue 68 , February 1870 , pp. 53 - 57
Copyright
Copyright © Cambridge University Press 1870

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References

page 55 note 1 I have not represented much of the south-east slope of the valley, as I do not suppose any one will dream that the Boulder-clay has slid from that quarter.

page 56 note 1 If, therefore, I had taken the section,(Fig. 2) across the valley, a little-nearer Shillford, it would have shown a larger portion of Boulder-c1ay in the position represented in the annexed woodcut at b2*.