The Pleistocene Deposits around Cambridge

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Abstract
Since the year 1910 I have devoted considerable attention to the Pleistocene Deposits of the Cambridge district, and believe that my observations will be useful as an aid to future students of these accumulations. In a paper read before the Cambridge Philosophical Society in 1917, I gave a brief account of the conclusions which I had reached, and noted the importance of a study of the Pleistocene deposits of the Great Ouse Basin, ‘for in this area we get evidence of the relationship of the Palæolithic deposits to those which were formed during a period of submergence and re-emergence, and also to accumulations which give evidence of the occurrence of more than one cold period.’ In the present paper I propose to confine myself to a consideration of the deposits in the immediate neighbourhood of Cambridge, with special reference to the sequence of the various members of the Pleistocene accumulations as there displayed (see fig. 1, p. 205). In the previous literature devoted to this subject undue stress has been laid upon relative elevation above present river-level. Of recent years it has been recognized that, owing to alternate erosion and aggradation, difference of level must be treated cautiously, for reasons which I gave in the paper to which I have referred. The researches of palæontologists have enabled us to construct a timescale based upon fossil evidence (including that furnished by human implements), and I have relied largely upon this evidence in attempting to determine the time-sequence of our local deposits.

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