IN THE ANGLO-PARIS BASIN 



3y 



M Ft 



Horton Hal 



45 



40 



150 



-140 



-130 



35- 



30 



120 



110 



100 



^-90 



25- 

 -.80 



- 70 

 20i 



- 60 



-" 



15- 50 



40 



10- 



^30 



^20 



--10 



0-^0 



Fig. 



I (VI) 



l(v) 



16. Correlation of Lower Gault sections at Horton Hall and Folkestone. 



