OF NORFOLK AND SUFFOLK. 
113 
the North Sea ice re-invaded Norfolk at some subsequent 
period, it would have destroyed the ridge, or levelled it 
down. The coast ridge, therefore, is newer than the Norwich 
brick-earth. 
I had the advantage last year of discussing on the spot 
with some eminent glaciologists, British and foreign, the 
view that the Cromer ridge represents a part of the terminal 
moraine of the North Sea ice ; without exception and without 
hesitation they adopted that view. Looking down from the 
platform on which the Cromer station of the Great Eastern 
Railway stands, one of them remarked, “This is the most 
striking example of a glacial moraine I have ever seen.” 
Fig. 2, from a photograph by Prof. Ussing of Copenhagen 
of a terminal moraine in North Jutland, resembles in an 
interesting manner the appearance of the Cromer ridge, as 
will be seen by comparing it with a view of the latter (fig. 3), 
taken from the railway station at West Runton. 
While the North Sea Drift of the eastern part of Norfolk 
consists mainly of clay or brick-earth, with sand or gravel, 
and in places large rafts of chalk or chalky marl, we find as 
we follow the cliff section towards Sheringham and Weybourne 
that it becomes increasingly marly and eventually entirely so. 
The changed character of the North Sea Drift as we trace 
it westward is probably due to the fact that the sea bed 
over which the ice moved in that region presented a surface 
of bare chalk, while to the east the chalk was overlain by 
Tertiary sands and clays. 
The North Sea Drift in its marly condition may be studied 
in the western part of the cliff section, and in many exposures 
inland ; one of these, on the right hand of the coast road from 
Cromer to Weybourne just before reaching the latter place, 
may be specially noticed. 
The country between Wells and Fakenham, and between 
Weybourne and Heydon is covered by similar marly drift 
(see contour map). A comparison of the Weybourne section 
with that of the well-known lime-kilns at Heydon, easily 
accessible from the Bluestone station of the Midland and 
Great Northern Railway, is interesting, showing the close 
VOL. ix. 
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