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. 



References as in fi£. 5. 



