424 
MISCELLANEOUS NOTES AND OBSERVATIONS. 
This intruded material extended from the top to the bottom of the 
cliff, and was more or less mixed up with the ordinary cliff sands 
for about fifty yards. From its containing the curious clay con- 
cretions, known by workmen as “dodmans,” so common in the 
Boulder Clay of the neighbouring brick-yards, it was evident that 
this Chalky Loam must be a reman it* of Chalky Boulder Clay 
washed into a fissure or gape in the underlying strata in what are 
called “ Post Glacial ” times, that is to say, after the deposition 
of the Boulder Clay. 
He referred to the bendings and undulations of the strata along 
this part of the coast section, which he considered to be as much 
evidence of lateral pressure as the more pronounced bendings and 
distortions of strata seen in other parts, as for instance, in the 
chalk cliffs on the South Coast. 
He noticed also an instance of disturbance in the surface strata, 
at a spot known as the League Hole, at the southern extremity 
of the Corton Cliffs, where masses of Chalky Boulder Clay, and 
“ Post Glacial ” Drifts are intruded into the older and underlying 
deposit of “ Middle Glacial Sands.” This phenomenon is noticed 
by Mr. J. H. Blake, the Geological Surveyor, in his memoir of 
the country round Lowestoft.* Another still more striking instance 
of crust disturbance — in “Post Glacial” times occurs in the North 
Cliff at South wold. 
This puzzling section is noticed by Mr. Horace Woodward in 
a paper published in the ‘Geological Magazine’ for August, 1896. 
The dislocations of the surface strata, shown by these phenomena, 
could not take place without the disturbance of the underlying 
beds. In East Anglia the great chalk formation underlies the 
more recent superficial deposits, and there is abundant evidence in 
the undulations of the chalk, as well as in the fractures and 
dislocations which are to be seen in chalk pits and other exposures, 
of the effects of lateral pressure. There are good grounds for 
attributing some, at least, of the disturbances in the chalk, as well 
as those appearing in the overlying beds, of which those noticed 
in this paper are examples, to the great crust movement, which, 
commencing in Pleistocene times, first submerged this area, and 
then by a movement or movements continued during thousands 
* p. 51. See also Horizontal Section Sheet, 128, published by the 
Geological Survey. 
