INFERIOR OOLITE: CHIPPING NORTON. 153 
places, but much of it is a finely oolitic and calcareous sandstone. 
(See Fig. 47.) Some of the layers, as shown in a quarry east 
of Sarsgrove, are remarkably false-bedded. 
North of Castle Barn, south-east of Sarsden, the lower beds of 
stone, which appear to belong to the Chipping Norton Limestone, 
contain an impersistent bed of soft grey oolitic marl, 1 ft. 8 in. 
thick, yielding Gasteropoda, (Natica ? and others) very poorly 
preserved. (See p. 326.) I feel, however, some doubt with 
regard to the correlation of these beds, for comparing them with 
those at North Aston, they might belong fo the Great Oolite. 
South of Lyneham Barrow,' and by the Camp, there are 
quarries showing false-bedded sandy and oolitic limestones, and 
sandy rock with hard concretions, resembling beds elsewhere 
associated with the Colly weston Slate. It is difficult to correlate 
the beds that are exposed in this neighbourhood. 
The Chipping Norton Limestone is quarried for road-metal, &c. 
near Handbrake on Chastleton Hill, near the Cross Hands Inn, 
and north-west of Little Rollright. 
The Clypeus Grit may be traced at the base of the Chipping 
Norton Limestone in a quarry by the main road east of Adles- 
trop, and again above the Upper Lias clay in the disused brickyard 
west of Salford, as observed by Mr. Walford. It is from 10 to 20 
feet thick. The sequence proved in this neighbourhood is aa 
follows : 
Fi. IN. 
o 
O 
tg 
Great Oolite 
Series. 
Chipping 
Norton 
Limestone. 
Flaggy oolitic limestones and marly 
clay, with Ostrea acuminata, 0. 
Sowerbyi, &c. 
Oolitic limestones, fissile when near 
the surface, passing down into less 
oolitic and somewhat sandy beds, 
and into thick, fine-grained, oolitic 
limestones below ; with lignite in 
places, rolled fragments of oolite and 
tiny quartz pebbles - - about 12 
e f Coarse an d rubbly oolite, iron-shot in 
rit S 1 pl aces > vtiih Clypeus Ploti, Trigonia, 
I Terebratula globata, &c. - about 10 
Northampton / Brown calcareous sandstone - 1 8 
Beds. \ Brown sands, with pebbly layer at base 1 2 
Upper Lias - Grey clay. 
The Clypeus Grit, as I am informed by Mr. James Windoes, 
has been proved in several places in the neighbourhood of 
Chipping Norton, more especially in the escarpment between the 
town and Churchill. It has also been proved beneath the town 
itself, where its thickness must be nearly 20 feet, judging by one 
well sunk to a depth of 55 feet. 
A trace of the division has been exposed, faulted against the 
Chipping Norton Limestone, in a quarry south-east of the town, 
on the Burford Road ; and an exposure of sandy and ferruginous 
limestone (classed by Mr. Windoes with the Clypeus Grit) occurs 
in the deep road-cutting by the cross roads, south of Lime-kiln 
