248 



DEPARTMENT OF THE INTERIOR 



2 GEORGE V., A. 1912: 



735' A 



30' B 



QUARTZITE 



' i 1 1 i i i i i ii i it i i i i 1 1 



J30C\ 



QUARTZITE 



'J.. 1 .. 1 ..'.. 1 .. 1 .. 1 



Acidified, gabbro 

 Biotite granite 

 Gabbro 



Gabbro 



QUARTZITE 



[■■■■■■[■[ 



lOSO\i\ 



20O*Z 



QUARTZITE 



R 



m 



QUARTZITE 



BiotUe granite 

 Hornblende -luotite granite 

 Intermediate- roch^ 



Gabbro 



Eornbtende-bi/rttte granite* 

 Intermediate reck, 



Gabbro 



In£ermedidtera£& 

 Gabbro 



Figure 15. Diagram showing the petrographic nature of each of the ■ 

 Moyie sills and its stratigraphic position in the quartzites. 

 The sills are distinguished by letters ; the approximate thick- 

 ness of each sill is indicated, in feet. 



