CPIILLESFORD CLAY. 
135 
there is no doubt that these strata belong, as Mr. Blake considers, 
to the Chillesford series. The section a few yards north of the 
flagstaff was :— 
Feet. 
Greenish-grey unstratified clay (Rootlet-bed) - - 4 
(Strata hidden by Blown Sand) - - - - 3 
Buff, orange, and white micaceous sand, the lower part fnll\ -.oi 
of water ------ (bored) J ^ 
Here all the beds beneath the Rootlet-bed may represent the 
Chillesford Olay, at this point exceptionally sandy. Or the 
underlying Crag may also be shown, though no shells were met 
with. 
From the old Coastguard Station, as far northward as the 
parish boundary, there seems to be an ancient channel, occupied 
by the carbonaceous and gravelly beds of the Forest-bed series, 
which none of the borings appear to have pierced. At sixty yards 
north of the boundary, in Pakefield parish, red shelly Crag was 
met with at about the level of low water. Then there is another 
channel, north of which the Chillesford Clay rises rapidly, so that 
at sixty yards south of the Lighthouse Gap we find fine sand 
without stones, and thin clays, extending to the level of low- 
water. One hundred yards north of the Gap a deeper boring, 
commenced at about high-water mark, showed:— 
Feet. 
Laminated light-blue and ferruginous micaceous clay and \ oi 
sand - - - - - - - - f ^ 
Brown loamy sand, with thin seams of light-blue clay - 3 
Sand, full of water - - - - - - 1| 
18 
The whole of these clays and sands probably represent the 
Chillesford Clay, unless the lowest foot and a half belongs to the 
Crag. There may be a perfect passage from one to the other. 
From this point the strata can be traced without material change 
for half a mile, till they are permanently hidden by the sea- 
defences and sand-dunes opposite Pakefield. 
When Pliocene strata reappear in the cliF at Corton, north of 
Lowestoft, the lowest deposit visible seems to belong to the 
Forest-bed, and the beds are so gravelly and full of water tliat 
none of the trial-borings could be carried below the level of low- 
water. Then there is another long stretch of coast of over 20 
miles, throughout which Pliocene deposits never rise above the 
sea-level. 
This break in the visible continuity of the Chillesford Clay is 
unfortunate, for it makes it impossible to feel certain as to the 
age of the similar strata which underlie the Forest-bed where 
it reappears near Happisburgh. The inland sections to a certain 
extent help to bridge over the gap, but the intervals still left are 
too wide to be ignored, especially in deposits of so variable a 
character. 
