THE SOUTH-EASTERN COALFIELD 



395 



Thickness. 

 40 ft. 

 268 „ 



16 „ 



119 



2 

 48 



21 



» 4 m. 



» § » 



Nodular Chalk (Grit Bed) 



Grey Chalk (Cenomanian, with some of the zone of 



Rhynchonella cuvieri included) .... 



Chloritic Marl (the sandy base of the Cenomanian, but 



it is not certain if the true Glauconitic Marl is present) 



Gault. 

 Lower Greensand (72 ft.). 

 Green Sandstone. (Folkestone Beds) 

 Clay and sand ; blue and black sandy clay (Sandgate 



Beds) 



Brown Clay (Atherfield Clay) .... 



Depth. 



30 ,1 



35 » 



156 „ 

 114 » 



77 „ 



128 „ 



15 ft. 9 in. 



Wealden Series (65 ft.). 



Black shale and dark grey marl (Weald Clay) 

 Silty sand and sandy clay (Hastings Sand) . 



Oolites. 



Nodular and compact limestone (Corallian) . 



Argillaceous limestone (Oxfordian) 



Sandy clay and green sandstone rock with many fossils 

 (? Kelloway Rock and Cornbrash) 



Hard oolitic limestone with shells and marly partings 

 (Bathonian) ....... 



(? Lias). Marly shale and marly limestone . 



Entered Coal Measures at 1580 ft. 9 in. below the sur- 

 face, or 1 180 ft 9 in. below O.D 



834 ft. 

 953 „ 



955 „ 4 in- 



1004 „ 

 1025 „ 



io5S „ 

 1090 „ 



1246 „ 

 1360 „ 



1437 „ 



1565 „ 

 1580 „ 



9 in. 



The results of the two borings may be tabulated thus : 



The ironstone, which, according to Boyd Dawkins, is 

 physically identical with the iron-ore worked at Westbury, in 



