﻿Some Ores mid Bocks of Southern Slocan. 



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commonly found again by following the rule of normal 

 faulting. The broken off, or rather the abrupt endings of 

 the quartz veins, have a smooth and rounded appearance, 

 which is hardly warranted by the slight throw, and, 

 moreover, the vein when found again does not always 

 correspond in thickness to where last seen. 



Fissure 1 illus- 

 trates this fault- 

 ing. It repre- 

 sents an actual 

 section, as seen 

 in a prospect 

 shaft. A curious 

 feature of these 

 veins is the gen- 

 eral tendency to 

 pitch in towards 

 the centre of 

 any given mountain, ridge or range from all sides of 

 that mountain. Possibly this may be only a result of 

 easier discovery of veins so situated, and there may 

 be other ones dipping outwards with the mountain slopes, 

 as, indeed, they do in a few cases. 



There is no general direction for these veins, this being 

 a distinction from the silver lead veins, immediately north 

 of this district, which have some tendency toward a north- 

 easterly strike. Generally speaking, the veins are free 

 from the granite walls and have more or less selvage 

 matter along these walls, but it is not uncommon to 

 find the decomposed granite and quartz firmly " frozen" or 

 cemented together even on walls which, in other places, 

 are quite free along the vein. 



Figure 2 illustrates the sudden pinching out of a quartz 

 vein. The quartz, which carries a high value in gold, 

 suddenly rounds off like a boulder, and only a seam of 

 selvage matter is left, whilst on either side of the seam 



