426 DEKl' MlNINd IN NOVA SCOTIA — TRKST. 



brian slates. But the fact that it shows a syncHiie even steeper 

 than tlie Cainhriaii syncline, which suiTounds and encloses it^ 

 seems to point to conf'ormability, or at least to deposition, on 

 nearly the same plane as the lower slates. To those who are 

 geologists I give this problem : — The centre of the syncline,, 

 supposed on fossil evidence to be Oriskany, with a dip of from 

 70 to 90, is folded in a syncline of supposed Cambrian slates,. 

 dipping from 50 to 70. Could the former have been deposited on 

 the upturned and denuded edges of the latter and then folded to 

 such a clip by the farther crumpling of the lower system ?' 

 Would it not rather indicate that the lower slates were not yet 

 folded when the Oriskany was deposited on them, and that both 

 were folded simultaneously in Lower Devonian times ? And yet. 

 w^e know that between the folding of the lower slates and the 

 deposition of the Lower larboniferous conglomerate, there has 

 been an erosion of those slates and (juartzites to the depth of 

 over 20,000 ft. The supposition of unconforniability seems- 

 untenable ; and yet the tlieory of conformability confines thia 

 immense denudation to the Devonian age. 



There is evidence in the eastern part of the Province to show 

 that a considerable interval elapsed between the folding and 

 metamorphism of the auriferous rocks. At the west end of the 

 Mooseland anticline, near its junction with the granite, the 

 cleavage lines are seen enclosing thin dykes of granite There- 

 fore the time elapsing between the two events was sufficient to 

 allow lateral pressure to increase and show its presence in the 

 fully formed cleavage lines now seen there. The points above 

 discussed, I hope to obtain more information upon during the 

 coming season. 



MiNERALIZATIO.V. 



The distribution of gold in our auriferous veins is often 

 designated by the terms spotty and streaky. The first is the 

 special peculiarity of the Yarmouth County mines with their 

 wandering maze of angulars and cross leads and their inconstant 

 slate-bound main-leads, as at Kempt. The uncertainty in this 

 case seems to be rather the pinching out or decrease in the 



