iMBRIAN ON 



VII 



Gogebic 



m 

 o 



§ eenawan 

 O 



H I 



5j |>s Formation 

 P- 1 ate, graywacke, 

 !ert, conglomerat* 



EPAi^r unconformity m< *3/ 



lite (Presque Isle in ) 



r slate, volcanics 

 wood I. F., Palms 



mformity 



P3 Kiver limestone, 

 ^ ay quartzite 



«J ■ l 



g ! . 



W j>r unconformity 

 M I 1 



lite gneiss 



(vatin 



SOUTHEASTERN DISTRICTS 



XIV 

 E. Ontario 



Granite (Moira) 



Hastings 



Major unconformity 



Granite gneiss 



Grenville 



Keewatin 



XV 



Adirondacks 



Granite (Pieton) 



Major unconformity 



Granite gneiss 



Grenville 



X. — Van Hise am 

 1 and Barrett, Jour! 

 is, Geol. Survey of 

 f c ?ht, Ont. Bur. Min 



anurn. Sci., vol. 39, p- Dept ' Geol., Univ. Calif., Vol. 10, No. 1 



