86 GEOLOGY OF MOOSE RIVER GOLD DISTRICT. — WOODMAN. 



DESCRIPTION OF PLATES. 



Plate 1. FiCf. a. — Outline map of the Moose River gold dis- 

 trict ; to show general geography, location of blocks, axes 

 of main folds, and situation of detailed map (pi. 2). 

 Adapted from Geol. Surv. Can., doc. 624. 



Fig. h. — Detailed map of " West Mine," showing the 

 natural outcrops and artificial exposures, and the position 

 of the anticlinal axis. 



Plate 2. Detailed map of the main part of Moose River gold 

 district ; sliowing positions of shafts, quarries, leads, expos- 

 ures of country rock, and anticlinal axes, with the attitudes 

 of determinable strata and veins. Scale 1 : 2100, 1 inch to 

 175 feet. 



Plate 3. Detailed cross section of division i. 



Plate 4. Cross section of division ii. 



Plate 5. Cross section of division iii. 



Plate 6. Cross section of division iv. 



Plate 7. Detailed sections from trenches and quarry on areas 

 30, 31, 70, 71 Block 1, and 97 Block 4. Fig. a, trench 1 ; 

 fig. h, trench 2 ■,fig. c, quarry ;j^(/. d, trench 3. 



Plate 8. Fig. a. — View in quarry on areas 73, 74 ; looking east, 

 showing synclinal sag on the subsidiary anticline. Above 

 the opening is the hanging wall whin overlying the Jo. 

 Taylor belt. The opening was made in excavating the 

 hanging wall lead, and below this lies the slate holding the 

 other veins of that group. The foot-wall lead forms the 

 floor of the quarry. The face is a joint plane. The cleav- 

 age, and the serration made by its intersection with strati- 

 fication, are also shown. 



Fig. h. — Crenulated lead ; showing curving of cleavage 

 around the arch, and inward toward the center of a trough. 

 The white spots in the country rock are crystals of arseno- 

 pyrite. About natural size. 



