GREAT OOLITE: KIRTLINGTON. 
321 
the Bladon quarry (p. 373) : indeed we can only consider that the 
limestones of the Great Oolite vary much in character, and that 
there may be some evidence of overlap and reconstruction at the 
base of the Forest Marble, suggesting local unconformity. This 
may be the case, at Enslow Bridge near Kirtlington and Bletch- 
ington, where there are several fine sections, which have been 
rendered famous by the descriptions of Phillips* and others. 
The section south-west of Enslow Bridge, on the western side 
of the River Cherwcll, is as follows : 
FT. IN. 
Soil. 
f Flaggy oolitic limestone. 
I Bands of soft pale marl and darker 
Forest Marble J grey marly clay with " race " 'and 
j lignite. Lumps of marly oolitic lime- 
stone (? remanie Great Oolite) occur 
I near the base - 7 
"Hard brown oolitic limestone, fissile in 
pieces - - - 1 Oto 1 6 
Fine-grained compact and earthy oolite, 
blue-hearted (good building-stone) 
1 Oto 1 8 
Marly layer (impersistent) - -03 
Compact earthy limestone, slightly 
oolitic, containing Terebratula maxil- 
lata in shelly layer, and Corals 
1 8 to 1 4 
Greenish-grey and dark blue racy clay 
and ferruginous oolitic marly clay, 
with lignite : Ostrea, &c. at base, also 
Selenite - - 3 to 3 6 
Hard rubbly-looking and slightly 
oolitic stone (with markings like the 
Great Oolite Dagham Stone) - * - 1.6 
(Upper Division). Marly and slightly oolitic stone, much 
jointed : merging into bed below - 4 6 
White marly limestone : Terebratula- 
bed with T. maxillata ; Lima cardii- 
formis, Ostrea, Trigonia, not so abun- 
dant - - - 4 to 5 
Marly and ferruginous layer - - 4 
White oolitic limestone, with occasional 
Terebraiula niaxillata - - -13 
Buff finely oolitic sandy limestone 2 
Ferruginous shelly and slightly oolitic 
stone (base not seen), about 6 
The Stone extends down to the river-level, and the lower beds were 
formerly worked. Since I noted the above section, the quarry has been 
closed. 
The Forest Marble was said to burn to a stronger lime, but to require 
more fuel than the Great Oolite. 
Phillips has noted a further series of beds beneath ; including 
16 feet of limestones and clays. He remarks that <c several of 
these oolitic [limestone] beds occasionally become marl in this 
and other quarries. Beneath is a marly and sandy series, the 
* Phillips, Quart. Journ. Geol. Soc., vol. xvi. p. 118 ; Geol. Oxford, &c., p. 152 ; 
and Hull, Geol. Woodstock, p. 21. 
E 75928. X 
