EQUIVALENT FORMATIONS. 289 



An original Tahle^ showing the equivalent Formations 

 below the Coal Measures in the Rock Strata of JEng^ 

 land, and the States of New- York and Pennsylvania. 



Formations of England. 



Coal Measures.- 



( Up. Lud- 

 low rock. 



^ j Ayemestry 

 ^ limestone. 



Low. Lad 

 low rock. 



r 



1 



5=^ 



Dudley and 

 Weniock 

 limestone. 



Weniock 

 shale. 



Si 



( Flags. 

 ^ ^ I Sand- 

 « 1 <( stones. 



ol ! - 



ki V stones, 

 o s r Calcare- 

 ^ -2 < ous flags. 

 1|< Sand- 

 •-2 ^ I stone and 

 Uchist. 

 Cam- ^ Clay slate 

 brian S. \ system. 

 Gneiss. 



GjkAIWTE. 



Formations of New- York. 



Conglomerates. 

 Sandstone of Cats- 

 kill Mountains.* 



Pyritiferous slate. 



Shales of superior 

 series. 



Gray sparry crinoi- 

 deal limestone. 



Onondaga lime- 

 stone. 



Red Sandstone. 



Sandstones and 

 shales of Salmon Ri- 

 ver, f 



Blue limestone and 

 shales of Trenton 

 Falls. 



Sparry limerock of 

 the Mohawk. 



Bastard limestone. 



Sparry limerock— 

 (Eaton.) 



Calcareous sand- 

 stone of Mohawk 

 Valley. 



Calciferous sand- 

 rock of Eaton. 



Graywacke and 

 slate of Hudson Riv- 



I Clay slate system. 



Gneiss. 

 Granite. 



z 



Formations of Pennsylvania. 



Anth.Cual meas- 

 ures.(]3) Conglom- 

 erates & shales.(12) 

 Red shale.(ll) 

 ( Sandstone and 

 i conglomerates.(lO) 

 j Red sandstones 

 Vand shales.(9) 

 Olive-coloured 

 slate.(8) 



Sandstone. (7) 

 Blue limestone. 

 Calcareous shale 

 <; formation.(5) 



Sandstones and 

 conglomerates of 

 Kittatinny.(4) 

 Slate ofKittatin- 

 1, ny Valley.(3) 



Limestone of Kit- 

 tatinny Valley.(2) 



, White and gray 

 ^ Sandstones.(l) 



\ Clay slate system. 

 Gneiss. 

 Granite. 



