74 

 Ksr. 



PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 



[Dec. 18, 



2. — Diagram showing the succession and relative thickness of the 

 various groups of strata at Punfield,from the Gault to the Middle 

 Wealden, and their respective relation to the Lower Greensand,. 

 (Scale 1 in. =50 ft.) 



Gault 



( 



Lower 



Greensand 



(Neocomian) 



(Meyer) 



Upper Keoco- , 

 mian (Judd). 



('Beds A ( 



Punfield 

 Forma- 

 tion 

 (Judd). 



BedsB-j tMjjjg| 



BedsG 



WMMMK§ 



Passage-bed. p 



Upper 

 Wealden ■{ 

 (Meyer). 



Middle Weal- "1 

 den (Meyer). J 



.Sands and clays, mostly 

 ferruginous. 



. .Supposed position of shales 

 with Cyrena and Cypris 

 (Judd). 



..Oyster-beds. 



Laminated sands and clays 

 (various), with ironstone 

 and lignite. 



..Marine band. 

 ..Lobster-clay (Meyer). 



..Shell-bed, with Atherfield 



fossils (Meyer). 

 ..Atherfield-clay & supposed 



position of Pm?«-bed. 

 ..Grit-bed, and limestone 



with Cypris. 

 "" -.Paper-shales with Cypris 



and Cyrena (Meyer). 



..Laminated sands and clays 

 of Upper Wealden. 



. . .Yariegated beds of Weal- 

 den. 



