228 



PROCEEDINGS COTTESWOLD CLUB 



igii 



above the green clay, come two beds of very fossiliferous lime- 

 stone with a median band of brown marl, and above these 

 again, green clay and rubble — the green clay containing whiten- 

 ed oysters. 



C.N.L. 



I 



?4- 

 &5. 



?i3. 

 14. 



20. I 



No. 63. OAKHAM QUARRY 



Thickness in feet 

 / Dark purple clayey subsoil 

 I Clay, dirty green and yellowish-blotched, with 



fragments of whitened oysters : seen . . . . i 



Limestone, weathers rubbly, very shelly ; Ostrea. 



Quenstedtia, Volsella imbricata (Sow.) very 

 common, Pholadomya, NerincBa spp., Nerita 



pseudocostata d'Orb., at the base,T«>-6o Iburton- . 



ensis Lye, Ataphrus labadyei (d'Arch.) 

 Marl, brownish ; Ostrea, Placunopsis soctalix : 



6 to 8 ins. . . . . . . . . . . Q 



Limestone, rubbly shelly ; Pleuromya, Chlamys 



vagans (Sow.), Grammatodon, Volsella imbricata 



(Sow), Nerinaa, Clypeus miilleri, Strophodus 



(tooth), lignite, etc. : average. . . . . . i 



(Beds 15 to 18 incl. absent). 

 Clay, tough, greenish : average . . . . . . o 



Marl, brown, shelly, and stiff chocolate-coloured 

 clay, often enclosing irregular masses of rotten 

 shelly (P. socialis) marl. In places near the base, 

 are masses of brown gritty limestone : o to 3 ft. 2 

 Limestones: plant-remains, Oppelia fusca (Qu.) 12 



This section was first noticed by Hull,' who referred all 

 the beds to the Great Oolite. In connection with the deposits 

 numbered 19 and 20, he wrote : 



" The thick bed of marl is very constant over the district, and may 

 again be observed in the quarries in the Moreton Road, as also 

 in a (juarry [now overgrown, 6g on map], near the gate of Day- 

 lesford Park, which opens into the Cornwell Road, where it is 

 associated with thin bands of sand and gravel." 



In the neighbourhood of the Cross-Hands Inn (64, 65, etc.) 

 there are extensive workings in the Chipping-Norton Limestone. 



Chastleton-Hill Quarry. — This quarry (66) is on the 

 golf-course, and has been extended in a south-westerly direction 

 in two workings. If the observer enters this quarry and the 

 right-hand extension, he will notice the best section of the beds 

 in the quarry-face on the left ; but, as usual, the beds are very 

 much disturbed. The beds correspond very well with those at 

 the Oakham Quarry and it should be especially noticed that, 

 in the top bed, specimens of Rhynchonella and Terebratula are 

 common. 



I " The Geology of the Country around Cheltenham " (1857), p. 59 ; see also H. B. Woodward, 

 " The Jurassic Rocks of Britain," vol. iv. (1894), p. 328. 



