45 
Section at Ruscombe Quarries, near Stroud. 
ft. in. 
1. Freestone rubble = : : : ; = LOO 
2. Pisolite. The beds are concretionary, but vary in Atteatrtace 
some portions are good Limestone. Terebratula plicata and 
Nerinza Oppelensis abundant. : . : ; : Seon 
3. Pea Grit. Sandy, with pisolites. x 0 3 
4, Freestone, the Oolitic grains sparingly distributed. i eid 
brown sand in the partings of the beds . : . 10 0 
5. Oolitic Limestone—a very thick bed—hard and semi- eee ae 
in the upper part, softer near the bottom. Mainly composed 
of shelly detritus, fragments of Coral, spines, &c., and rather 
large Oolitic grains; the upper surface plain, and covered with 
small valves of Ostrea and marks of boring. A good weather- 
stone. About 16 feet exposed : ; 2 L6ENO 
6. Three brown sandy Limestone beds, with tayers of venga: 
sand between them. é ; 9 0 
7. Cephalopoda bed, containing Balieoniben: a se Frees soe 
Nautilus, casts of Myacites, &c. : : : , ; ae ei, O 
Sands. 
To see the whole of the beds in this Section it is neces- 
sary to go through the excavations which extend round the 
angle of the hill. The beds are faulted, but it is not difficult 
to trace them. The Ruscombe valley or Combe is in a fault, 
and where the Combe enters the Inferior Oolite it is contracted 
to a gorge about 100 feet deep: the principal quarry is on the 
west side of the gorge. A few yards below, and at the back 
of the cottages, there is an excavation in the sands; and the 
beds are exposed at intervals round the angle of the hill about 
100 yards, where they terminate in another quarry, in which 
the upper part of the beds shown in the first-mentioned quarry 
are worked. The first five beds are well exposed in the prin- 
cipal quarry: they have evidently slipped from their base, and 
are now lying with a dip at a considerable angle towards the 
hill. This is one of the best exposures of the beds under- 
lying the Pisolite in the neighbourhood of Stroud. The bed 
No. 5 is remarkable for its thickness, as well as its close 
resemblance in structure to the planking beds of Minchin- 
hampton in the Great Oolite, but the minute shells appear 
worn, and as the rock is compact, they are difficult to extract. 
