Fig. 27
DIAGRAM TO ILLUSTRATE THE GENERAL SUCCESSION OF THE STRATA IN THE NORFOLK CLIFFS, EXTENDING SEVERAL MILES N.W. AND S.E. OF CROMER.
1 Upper chalk with flints in regular stratification.
2 Norwich Crag, rising from low water at Cromer, to the top of the cliffs at Weybourne, seven miles distant.
3 'Foresr Bed,' with stumps of trees in situ and remains of Elphas meridionalis, Rhinocerus Etruscus, &c. This bed increases in depth and thickness eastward. No crag (No. 2) known east of Cromer Jetty.
3′ Fluvio-marine series. At Cromer and eastward, with abundant lignite beds and mammalian remains, and with cones of the scotch and spruce firs and wood. At Runton, north-west of Cromer, expanding into a thick freshwater deposit, with overlying marine strata, elsewhere consisting of alternating sands and clays, tranquilly deposited, some with marine, others with freshwater shells.
4 Boulder clay of glacial period, with far transported erratics, some of them polished and scratched, twenty to eighty feet in thickness.
5 Contorted drift.
6 Superficial gravel and sand with covering of vegetable soil.