Vol. 68.] PALEONTOLOGY OP THE WARWICESHIKE COALFIELD. 611 



(D) Tectonics. 



The following table embodies an account of the more important 

 sinkings and borings in the southern part of the coalfield. It has 

 been added, in order to illustrate the geological structure of that 

 part of the district : — 



Important Sinkings and Boeings in the Warwickshire Coalfield. 



Locality of Boring. 



Spring Pools 



Kereslej^ 



Wliitmore Park 



Foleshill ... 

 Spon End . . . 



Whitley ... 



Tile Hill ... 



Kenilwortli 



Leamineton 



Stoke 



Brandon 



Weston 



Burton Hastings 



Nuneaton 



Bedworth Charitj' Colliery 

 Lindley 





6 



7 

 8 

 9 



10 



11 



12 

 13 



14 



15 

 16 



^, 



Depth of Fo7'7nations passed tlirotigh. 

 Boring, i Thickness in feet. 



370 

 445 



340 

 310 

 266 



230 



350 



237 



240 



270 



360 

 330 



210 



360 



2009 

 2173 



2591 



1055 



575 



250 



693 



2261 

 346i 



169 



300 

 130 



123 



1029 

 660 



I Coal Measures to 2009. 

 Coal Measures to 2173. 



C Permian 660. 



I Coal Measures 1931. 



C Permian 909. 



^KeeleBeds... 146. 



(Permian 190. 



(PKeeleBeds... 385. 



C Lower Keuper 46. 



:( Permian 188^. 



I Permian to 693. 



I Permian to 226|. 



i Upper Keuper to 346^^. 



\ f Upper Keuper 60. 



[ < Lower Keuper 82. 



! C?KeeleBeds... 27. 



rDrift 21. 



A Keuper 313. 



, (,Coal Measures 32. 

 ! Upper Keuper to 300. 

 ; C Lower Keuper 60. 



i I Cambrian 70. 



I rDrift ....^. 27. 



j ■< Lower Keuper 81. 



C Cambrian 15. 



C Coal Measures 795. 



(Cambrian 234. 



Keuper to 660. 



The structure of the coalfield is remarkably simple, especially in 

 the northern portion, where the various subdivisions of the Coal 

 Measures, and also the coal-seams, crop out symmetrically on each 

 side of the syncline. In the south this symmetry is partly hidden 

 by the pitch of the syncline, and by the unconformable cover of 

 Permian and Trias, and partly destroyed by the western boundary- 

 fault. 



The proved faults within the coalfield are neither very great nor 

 very numerous ; but the western and eastern boundary-faults are 

 important dislocations. The eastern boundary of the Palaeozoic 

 rocks is, in part, a fault which runs in a south-easterty direction 

 from Shuttington by Poles worth and Atherstone to near Nuneaton. 

 The amount of throw is unknown, but it decreases southwards 



2x2 



