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DEPARTMENT OF THE INTERIOR 



2 GEORGE V., A. 1912 



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Figure 29.— Plunging contact surface between the Similkameen batholith and the 

 Chopaka roof- pendant. Contact shown in broken lines. Th^ vertical distance 

 between the two ends of the contact line seen on the nearer ridge is 1,600 feet. 

 Drawn from a photograph ; looking east. 





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Figure 30. — Outcrop of the same intrusive contact surface shown in Figure 29. The 

 vertical distance between the two ends of the contact line as drawn is 1,100 feet. Granite 

 on the right ; quartzite and schist on the left. Drawn from a photograph ; looking west. 



