140 



MR, S. S. BUCKMAN ON THE BAJOCIAN [Feb. I9OI. 



(d) Section through, the North Cotteswolcls_, from 

 west to east. 



Results similar to those just detailed are found to obtain in 

 making a west-to-east traverse of the North Cottes wolds. The 

 Phillipsiana-to- Witchellia-heds soon disappear. Then the Notgrove 

 Freestone comes into contact with the Upper Trigonia-gnt, and 

 remains so over some distance ; then rather suddenly on the east 

 flank of the jS'orth Cotteswolds — overlooking the Vale of Moreton 

 — there is disappearance of the lower Inferior-Oolite beds, until 

 the upper Inferior-Oolite beds rest directly upon Upper Lias. 

 Then the Upper Lias itself suffers denudation, for according to 

 Hull ' at Stow the average thickness is 40 feet.' ^ But eastward 

 it thickens again : ' at Chastleton it is 60 feet.' That indicates 

 that the axis of the anticline, evidenced by the greatest amount 

 of denudation beneath upper Inferior-Oolite beds, is in. the Yale of 

 Moreton, between Stow and Chastleton ; and that, at Chastleton, 

 the eastern side of this anticline is to be found. Further evidence 

 of this is given by Hull. He says (ojp. cit. p. 30) : 



' East of Stow the Sands disappear and we only find them once, namely, at 

 Cornwell around the Chastleton outlier.' 



Fig. 2. — Diagrammatic section across the Vale of Moreton. 



c 

 r o2 



W. Cotties.woIds ^H Oxfordshire. E. 



>s 



Upper Beds OF Inferior Oolite, 



What he means by ' Sands ' in this part of the district are the sandy 

 ferruginous beds above the Cephalopod-bed — the strata deposited 

 during the scissi hemera (see Appendix I d, p. 151). And what 

 his statement indicates in the present connection is that at Corn- 

 well, east of Chastleton, the lower beds of the Inferior Oolite — these 

 sandy feiruginous strata — are coming in again. I know, from fossils 

 which Mr. E. A. Walford, F.G.S., has sent me from Hook Norton, 

 that beds of this date — scissi hemera — are found there, which is 

 confirmatory evidence in the same direction. 



The above diagram (fig. 2) shows the position of afi'airs west 

 and east of the Yale of Moreton, and of the anticline which was 



^ Mem. Geol. Surv. 1857, ' Gaol, of Country around Cheltenham ' p. 25. 



