GREAT OOLITE: BURFOKD. 
305 
Great Oolite 
FT. IN. 
f Hard brown oolites - - 2 6 
I White fine-grained oolite - - 1 7 
J{. | Brown fine-grained and rather earthy 
I oolites. 
An excellent section of the Great Oolite Series was exposed to 
the eouth-west of Hoi well, near B^rford, in a large excavation for 
fcrick-clays. It was as follows : 
Brown clayey soil. 
'Blue and brown shelly oolite. 
Fissile limestone, smooth beds, imper- 
fectly oolitic - 2 to 
(Sharp line.) 
Pale grey marly clay - - 1 to 
Fissile false-bedded pale bluish and 
brown oolite, with marly seams in 
places - 2 to 
Pale grey marly clay (used for marling 
land), with thin beds of blue marly 
and shelly limestone - 
Great Oolite 
(Upper 
Division). 
FT. IN. 
8 6 
G 

Blue and brown shelly oolite with") 
ochreous galls - - - 1 
False-bedded flaggy m&rly and shelly [ 
oolite - -J 
Grey marly clay ... 
Bluish sholly and marly oolite wittT) 
Rhynchonella, Ostrea, &c. 
Thick bed of pale false-bedded and ) 
current-bedded shelly oolite, blue at | 
base - -J 
Blue marly clay ; used for bricks, &c. 
for estate purposes only (pale buff or 
whitish bricks and drain-pipes are 
manufactured) - . 5 6 
The lowest thick beds have much the appearance of Great 
Oolite freestone, especially at a short distance, but the lower part 
of the rock is very blue and shelly like Forest Marble. At first 
I was inclined to group all the strata with the Forest Marble, 
but on further consideration I think they belong mainly to the 
Marly beds beneath the White Limestone, as seen at Milton, and 
elsewhere, and which have been proved in the upper part of the 
J3uri'ord boring, and in a boring at Witney. The basement 
portion of the White Limestone occurs on top. 
North-west of Swinbrook, east of Burford, a quarry showed the 
following section : 
Clay and rubble ... 
("Hard grey earthy and gritty limestone - 
Bluish oolitic marly bed - 
J Brown and yellow oolitic marl 
\ Oolite with RhyncJionella concinna 
Brown and grey oolitic marl 
Brown oolitic limestone (irregular) 
Fissile current-bedded oolite 
"V\ hite oolite - 
Pale oolite, with large scattered grains 
of oolite - 
Thin clayey seam - 
False-bedded oolitic freestone : in thick 
beds, much jointed in places (inclina- 
tion of bedding as in Fig. 87) - 
Upper 
Division. 
Lower 
Division. 
FT. 
2 
1 
1 
12 
1 
2 


1 
2 

r.5928. 
IN. 


6 



8 
8 
2 
6 
6 

