34 GEOLOGY OF MOOSE RIVER GOLD DLSTRICT — WOODMAN. 



north side of the north anticline is fairly to be inferred from 

 observable steep dips east of the fault. South of this axis the 

 dips are low for some feet, increase to 35° at the surface in the 

 Alex. Taylor lead but are still low below ; then steepen steadily 

 to 70°, with an average of about 60°. South of the synclinal 

 axis the dips are known to be steep ; and from veins in the 

 trench on area 32, and known east of the fault, in divisions ii 

 and iii, a probable average of 70° is obtained. South of the 

 south anticlinal axis, the dips begin at 90° and run out to at 

 least 70°. Farther east they are lower. 



Two interesting features are shown in this section. First, the 

 folds are all unsymraetrical, but irregularly so. The axial plane 

 of the north anticline dij^s 60° S., that of the other two folds 

 85° S., giving an overturn to the north in all. Second, the north 

 anticline is not normal and simple, but compound, having on the 

 south side very low central dips, and a distinct bulge about one- 

 third of the distance to the synclinal axis. How far west this 

 bulge extends there is no means of knowing, because the coun- 

 try is undev eloped ; but eastward it grows into a distinct third 

 anticline, clearly defined, but evidently lying on the side of the 

 north fold. Although not fully developed in division i, this 

 bulge is divisible into an anticline with an axis dipping 53" 

 N., and a syncline whose axis dips 64° N. 



Division ii : north anticline. — In division ii the most 

 northern dip visible is that of No. 7 lead, between 70° and 75°. 

 The slate belt extends at least a hundred feet farther north, 

 according to those Mdio worked this part of the district in earlier 

 years ; and by estimate some distance beyond. Between No. 7 

 and the Little North, the rock is still largely quartzite, slate in- 

 creasing in proportion southward. Even as far as the Big North 

 whin is found to some extent. The dips north of the axis are 

 sufficiently represented on the map — low near the center and 

 increasing outward. The anticline has a comparatively flat top, 

 as can be seen well in the quarry on area 131. 



