64 



OOLITIC GROUP. 



On the Yorlcsliire coast the Great or Bath 

 Oolite (b) (a hard blue limestone ; fine-grained 

 oolite ; hard bluish clay ;) is contained between 

 two thick beds {a, c,) of gritty laminated sand- 

 stones and shales, containing an abundance of 

 terrestrial plants. 



{a) Cayton and 

 Gristhorpe Bays. 



{b) Cloughtonand 

 White Nab. 

 (c) Between Clough- 

 ton Wyke and Blue 

 1-Wick. 



Stonesfield Slate. 





Fuller's Earth Clay. 



Inferior Oolite. 



Lias. 



Oolite, shelly and 



Stonesfield, Oxon. 



\ Seveuhampton Com- 

 [ gritty limestone. Slaty. J ^^^^ ^ 



■^ Bath ; Box ; near 

 , I Stroud ; and Hamp- 

 J ton Common. 



Two layers of coarse 

 sheUy ragstone, with 

 intervening bands of 

 marl, and soft free- 

 stone. Fine-grained 

 sandstone and iron- 

 stone. 



Alum shale ; rubbly -> 

 and sandy shales, &c. I 



Lower Lias lime- | 

  stones, and shales. -^ 



Dundry. Painswick. 

 Brinscombe. The 

 Cotteswolds. Blue 

 Wick, Yorkshire. 



Whitby, Redcar, 

 Yorksh. Gloucester- 

 shire. Somerset. 

 Lyme-Regis, &c. 



LOCALITIES FOR FOSSILS, &c. 



Fine sections of the Oolitic Group are to be seen along the coast of 

 Yorkshire, and that of Dorsetshire. In the 'hills and country 

 around Cheltenham, and Bath, and Bristol ; around Svrindon, 

 and in the vicinity of Oxford, and Aylesbury. Consult the table 

 given above, and the works referred to, for other localities where 

 the subordinate beds may be observed. Also the sections of the 

 Great and North Western Railways, constructed by Captain 

 L. L. B. Ibbetson, for the Geological Survey of Great Britain. 



