GREAT OOLITE : BRADFORD-ON-AVON. 
261 
There are, however, no clear and continuous sections, showing the 
sequence from Forest Marble through Great Oolite into Fuller's 
Earth. The Bradford Clay was not exposed, and it could only 
be inferred that the Great Oolite was represented by a few feet of 
oolite, that clearly occupied a higher horizon in the scarps than 
the Fuller's Earth Rock. 
To the north-east of Farleigh, brown shelly and oolitic lime- 
stones are exposed on the western side of the road leading towards 
Westwood, but the absence of clear sections in this neighbourhood 
is unfortunate. 
In the Bath district, the beds may generally be divided as 
follows* : 
Tinner Division 
on ' 
Lower Division. 
FT. IN. 
Ea S 3 5 oolites and shelly 
limestones - - 12 to 50 
r Freestones (oolites) - 8 to 30 
I Lower Rags ; shelly and marly 
] limestones, fissile oolite, &c. 
I 10 to 40 
The Great Oolite has been extensively quarried or mined at 
Upper Westwood (AvonclifF or Ancliff), and to the south and 
east of Bradford-on-Avon. At Upper Westwood, the section is 
as follows (see Fig. 81): 
Upper Division. 
c 
c 
Lower Division. 
[Rubble with Corals] 
5. Coarse oolite with shelly frag- 
ments ; a thin-bedded stone, 
much broken up near the top 
[celebrated for the "Ancliff'" 
fossils, described by Sowerby] 
4. Marly layer [with sponges and 
fragments of shells, &c.] 
3. Coarse shelly oolitic and pasty 
limestone, of rubbly character ; 
with shell-fragments, Polyzoa, 
&c. .... 
2. Rag; pale oolitic limestone, form- 
ing roof of mine 
1. Freestone ; one or more beds of 
oolite, with ochreous galls in 
places, and more particularly 
in the lower part. On the 
whole a very uniform stone, 
and free from open joints; di- 
vided as follows : 
Good freestone 5 10 to 
Freestone - - about 
Rubbly stone - about 
FT. 
5 
IN. 

15 
6 
10 
3 
A brief record of the above section was published by Lonsdale, 
with whose measurements my own agree ; some additions are 
inserted in square brackets on his authority.f The " Ancliff 
Limestone " is noted for the tiny organisms it has yielded. Ostrea 
costata is noted as " one of the miniature productions." Many 
* See also Lonsdale, Trans. Geol. Soc., ser. 2, vol. iii. p. 251. 
f Trans. Geol. Soc., ser. 2, vol. iii. p. 252. 
