GRISTHORPE CLIFFS. 
51 
noticed at the base of Gristhorpe cliff ; and below, the beds, h, g,f, e, d, 
are so many portions of the sandstones and shales which lie at the bottom 
of that carbonaceous series, a is the oolite. 
I shall describe them in a reversed or ascending order. 
a. The inferior oolite, its top level with high-water, in thick, solid, obliquely lami- 
nated, partially oolitic beds, with oxide of iron in the partings. It is full of 
fragmented milleporse, crinoidea, and echinida. The upper surface is covered by 
a dichotomous millepora. This rock closely resembles that which occupies the 
projecting point called Ewe nab, north of Cayton bay. 
c. Argillo-arenaceous layers, separated by carbonaceous partings, containing some 
ironstone nodules, and small white shells, especially in the upper part. This is 
excavated by the sea along the shore in a hollow course between a and d. 
d. 1. Solid beds of ironstone nodules, from three feet six inches to four feet six 
inches thick. 
2. A parting of shale, with imperfect plants. 
3. Sandstone in confused beds, with lamina; of shale and carbonized wood ; 
its surfaces and partings irony. 
e. 1. Black sulphureous shale, with selenite and layers of coal, formed from 
wood. Here a multitude of fossil plants is found. 
2. The thickest of several sandstone layers. 
3. Black and white shale. 
f. Sandstone laminated. 
g. Very dark shale. 
h. Confused sandstone and shale. 
i. Alternations of thick sandstone and thicker shales. 
These oolitic rocks sink below low-water before reaching Red cliff, 
and all the strata above it bend a little downwards, and successively 
form scars ; but suddenly the scars are all terminated by a straight line. 
On tracing this line backward to the cliff, we find it connected with a 
very remarkable dislocation or slip of the strata, which may be under- 
stood from the representation in the general section. On the left of the 
line of this dislocation, the lower part of the Oxford clay is opposed to 
the bottom of the calcareous grit on the right ; the Kelloways on the left 
meets the top of the Oxford clay on the right, whilst the Kelloways on 
H 2 
