36 GEOLOGY OF MOOSE RIVER GOLD DISTRICT WOODMAN. 



plunges eastward, as shown by the curved strike of the Jo. 

 Taylor belt, and of the strata at the east end of the quarry, 

 immediately north of the anticlinal axis. The Taylor belt is found 

 on that side also, but does not reach the surface in the unex- 

 cavated part. The angle of pitch is difficult to measure or 

 estimate, but is about 15° E. All this part of the field is slate, 

 except here and there a stratum of quartzite, such as overlies 

 the Jo. Taylor belt to a thickness of four or five feet. This belt 

 of leads takes part in the synclinal folding immediately' to the 

 north. The axial plane of the anticline appears to dip 85° N. 



Division ii: south main fold. — The synclinal axis south of 

 the quarry is measurable to within a few feet, for the two near- 

 est outcrops of opposite dip are scarcely twelve feet apart, 

 measured directly across the strike. This axis is continued from 

 west of the west fault, and its plane dips 83° S. The rocks to 

 the south dip much as in the corresponding zone on areas 30 and 

 171, east of the middle fault. The angles are all high to the 

 south anticlinal axis, whose plane dips 82" S. Thence as far 

 south as the Root Hog the dips vary from 50° S. near the axis 

 to 70° at the lead just mentioned. The rock is slate from the 

 Jo. Taylor belt to the south end of the trench on area 970, 

 block 4, except for a few quartzite strata of no importance. In- 

 deed the small exposure south of the trench, and one near the 

 south end of area 930, block 4, indicate that the slate belt ex- 

 tends at least 650 or 700 feet south of the south anticlinal axis. 

 This trench is one cut in 1899 expressly to. develop the structure 

 of the rocks and the distribution of the leads. 



Division ii : relation to division i. — A comparison of the 

 cro.ss sections of these two divisions (pis. 3, 4), shows that in ii 

 there is beginning to form a distinct subsidiary anticline on the 

 flat side of the northern fold. It is probable, judging from the 

 distribution of dips in and near the quany on area 70, that the 

 local syncline does not extend to the fault on the west, and its 

 axis haa been drawn with this belief. West of the fault there 

 is no syncline, and this one begins as a definite sag fifty or one 



