Upper and Lower Palaeolithic Man in East Yorkshire

Extract

The most complete section of the glacial series of deposits described and illustrated in Lamplugh's classic paper entitled “On the drifts of Flamborough Head” is that which is located at Danes' Dyke.

Referring to this section Lamplugh says:—

“I have spent much time in exploring this section, and consider that the beds up to this horizon represent the Basement Clay, while the persistent upper band of brown Boulder-clay (3) is all that remains of the upper Clay of Sewerby, this bed and the underlying sand and gravel (3b) together taking the place of the Purple Clays of Bridlington and Holderness. Above this clay lie the Sewerby Gravels (2b), the lower part chalkless and the upper layers composed chiefly of chalk-pebbles, as noticed farther west. A few feet of loamy stuff overlies these gravels at the cliff top (2c), resembling a weathered Boulder-clay, and a little farther east (near Hartindale Gutter) a seam of Boulder-clay certainly appears in these gravels, their contemporaneity with the uppermost part of the Boulder-clay, and consequently their Glacial age, being thus fully established.”