220 



GLACIAL DEPOSITS 



CHAP. XII. 



loose sand, loam, and pebbles, are so complicated that not 

 only may we sometimes find portions of them which maintain 



Fig. 29 



Gravel 



Till 



Cliff 50 feet high between Bacton Gap and Mundesley. 



their verticality to a height of ten or fifteen feet, but they 

 have also been folded upon themselves in such a manner 

 that continuous layers might be thrice pierced in one perpen 

 dicular boring. 



At some points there is an apparent folding of the beds 

 round a central nucleus, as at a, fig. 30, where the strata seem 



Fig. 31 



Fig. 30 



Folding of the strata between 

 East and West Kunton. 



Section of concentric beds west of Cromer. 



1 Blue clay. 3 Yellow sand. 



2 White sand. 4 Striped loam and clay. 



5 Laminated blue clay. 



bent round a small mass of chalk, or, as in fig. 31, where the 

 blue clay, No. 1, is in the centre ; and where the other strata, 

 2, 3, 4, 5, are coiled round it ; the entire mass being twenty 



