File:The Quarterly journal of the Geological Society of London (12735675005).jpg

LATER TERTIARY GEOLOGY OF EAST ANGLIA.
93
Fig. 14.__ Section XIV., across the Tese Valley. (Length 4 miles.
Yortical scale 17£ times the horizontal.)
Brick-pit 5 furl.
W.N.W. of
Site of Shottesham
church. mill.
River
Tese.
Deep exca-
vation in Pit on
Sheets Shottesham
Hill. Common.
E.
1, 5, 6, 7, 8 as in fig. o.
4. Remnants of the Chillesford beds and Fluvio-marine Crag.
10. Postglacial valley-gravel and recent alluvium.
On both sides of the Tese valley the high ground is occupied by
the Upper Glacial clay, which conceals every thing ; but we feel little
doubt that the Contorted Drift is present in thickness beneath it, the
denudation having operated mostly along the lines of the valleys
which have afterwards been re-excavated postglacially. The dotted
lines which continue the line of section XIY. at its eastward extremity
indicate our view in this respect ; and in fact, if the section which
we have given across the Tese were continued south-eastwards to
the valley of the Waveney at Bungay, protrusions of the Contorted
Drift thus underlying the high ground between would be encoun-
tered at Headenham.
The only river-valley of East Norfolk remaining to be noticed is
that of the Ket, which river falls into the Yare eight miles west of
Yarmouth. The features of this valley differ from those of the
Tese in the more general presence of the Contorted Drift, which
comes out pretty regularly along both its sides.
The Pebbly Sands underlying it are also in great thickness ; and to
the east of Loddon they form masses of shingle, which, however, are
not oblique-bedded, as are the similar masses near Halesworth and
Henham. The following is a section across the Ket valley.
Fig. 15.-
W.N.W.
-Section XV., across the Ket Valley. (Length 2\ miles.
Yertical scale 17 \ times the horizontal.)
Pit ofurl.
E. by S.
E.S.E.