'J2^ 1000 Ft (about) 

 Pliocene ^ ra g 



n,. Hempstead. Bembridqe 



O/.gocene 



(Bagshot Sands 



Eocene \LondonClay 



\Thanet Sands 

 Chalk 



U. Green Sand 



Gault 



L. Green Sand 



Cretaceous 



TrU 



Permian 



Weald 



Hastings Sands 

 Purbec if Portland Beds 



Kimmeridge Clay 

 Coralline 



Oxford Clay 

 Cornbrash 



Bradford Clay 

 Stones fie/ d Slate 

 Bath Oolite 

 Fullers Earth 

 Inf. Oolite 

 Mid ford Sands 



Mar/stone 

 Lower Lias 



Clays & Marls 



/fee/ Sandstone 



Magnesian Limestone 



Lower Permian 



^F 



_L~_T 



Carb on ife rous 



FIG. 4. 



