32 GEOLOGY OF MOOSE RIVER GOLD DISTRICT — WOODMAN. 



cannot be far wrong. East of this fault the nearest outcrops of 

 opposite dips are only twelve feet apart, so that the axial line 

 can be given with great accuracy. East of the middle fault the 

 axis is estimated with reference to a definite horizon which 

 appears on both sides of the break, — the Jo. Taylor belt of leads 

 — combined with certain other less definite data. East of the 

 east fault, also, exposures define the position of the line closely. 

 It will be noticed that here the distance to the south anticlinal 

 axis is much less — 45 feet — than in any place to the west. 



To understand the growth of the middle fold, it will be 

 necessary to state in detail the data available for determining 

 the structure. For this purpose, the rocks will be considered in 

 four divisions — i, west of the west fault ; ii, between this and 

 the middle fault ; Hi, west of the east fault ; and iv, including 

 the east end of the field. 



Division i : attitiule and character of strata. — Exposures in 

 division i are few, compared with the rest of the region. West 

 of the river the only shaft is that on area QQ, supposed to be on 

 a continuation of the Britannia belt. The dip of the skids is 

 about 50° S. The rock on the dump consists largel}'- of an 

 argillaceous quartzite, grayish green in color and highly lust- 

 rous. Mingled with this is a compact, shiny black slate. It was 

 impossible to descend the shafts at any of the visits. 

 North to the bend of the river is a continuous outcrop along the 

 stream bed. It is all quartzite, having only here and there 

 laminae by which to get the attitude. The two records on pi. 

 2 sum up all the knowledge that can be gained without excava- 

 tion. The strata at the more southerly station strike from 

 N. 85° E. to E. — W., according to the precise spot of observation. 



East of the stream the land is low and somewhat swampy 

 toward the north. On areas 133 and 168 is a ledge of much 

 weathered quartzite, but it is impossible to be sure of its atti- 

 tude. It lies along the line of probable westward continuation 

 of the north anticline, and doubtful evidence points to a north 



