BUILDING AND ORNAMENTAL STONES. 



309 



E.— GEOLOGICAL BECORD 



OR 



ORDER OF SUCCESSION OF THE ROCKS COMPOSING THE EARTH'S 



CRUST. 



Recent, or Terrace. 

 Champlain. 

 Glacial, or Drift. 



M . > 



fl'l 



° £ 



OS 





3 



8* 





© i 



&c 



e3 oo 



03 



o«° 



• 



o»^ 



.4 



S3 



2 



g 



. o3 



)>& 



o 



bC 





© -M \ 



bJDg r 



o 



•vj 



} Tertiary. 



Cretaceous. 



)> Jurassic. 



Triassic. 



Permian. 

 Carboniferous. 



Subcarbonifcrous. 



Catskill. 



Chemung. 



} Hamilton. 



u a 



© 03 

 02 



Corniferous. 



Oriskany. 



Lower Helderberg. 



Salina. 



Niagara. 



a Trenton. 



"5 Canadian. 



Cambrian, 

 or Pri- 

 mordial. 



Upner. 



Middle. 

 Lower. 



Archaean, Pre-Cambrian. 



( Pliocene. 

 < Miocene, 

 f Eocene. 



Laramie. 

 Upper. 

 Middle. 

 Lower. 

 fWealden. 

 Upper oolite. 

 Middle oolite. 

 Lower oolite. 

 Upper Lias. 

 Marlstone. 

 , Lower Lias. 

 ( Keuper. 



< Muschelkalk. 



( Bunter Sandstone. 



Permian. 

 ( Upper Coal-measures. 



< Lower Coal-measures. 

 ( Millstone Grit. 



5 Upper. 

 I Lower. 



Catskill. 



Chemung. 



Portage. 

 I Genesee. 



< Hamilton. 

 ( Marcellus. 



i Corniferous. 



< Schoharie. 



( Can da-gall i. 



Oriskany. 



Lower Helderberg. 



Salina. 

 C Niagara. 



< Clinton. 

 ( Medina. 



i Cincinnati. 



< Ufcica. 



C Trenton. 

 i Chazy. 

 \ Quebec. 

 ( Calciferous. 

 ( Potsdam. 



< Georgian. 

 ( St. John's. 

 ^ Huronian. 



\ Laurentian. 



