30 GEOLOGY OF MOOSE RIVER GOLD DISTRICT — WOODMAN. 



foot belt of 8late, on which a shaft has been sunk. Between 

 these stations the rock appears to be quartzite, and south of the 

 slate three feet is the hanging wall of another narrowband of slate. 

 In area 187, next south of 214, the shaft which has been mapped 

 lies over a six-foot belt of veins, the belt being crumpled slate. 

 The strike here is N. 87° E., the dip 84^' N. The trench shown 

 on the map runs S. 42° E. Along this 175 feet south is the 

 first vein with a south dip. Thirty-ihree feet farther is a second, 

 and thirtjr-one feet south of it a third. The exposures were in such 

 condition in 1899 that the degrees of dip could not be measured 

 accurately, but they were high. The bedrock was onl}^ obscurely 

 visible anywhere along this trench. From such indications as 

 could be found, and from questioning those who had dug the 

 ditch, the estimate v/as made that the axis lies about 125 feet 

 from the north end of the trench. It strikes east and west, and 

 the estimate here agrees almost exactly with that given earlier, 

 from data a mile to the eastward. Throughout the traverse of 

 the region the rocks show a local crumpling and contortion 

 unlike anj^thing seen in most of the districts, but such as might 

 be expected to accompany the division of an anticlinal axis, in 

 alternating competent and incompetent strata. For a consider- 

 able distance north and south, such outcrops or prospect holes as 

 have been found from year to year show dips away from tho 

 axis. 



The minute details of this commercially unimportant field 

 have been given, because they throw light upon some problems 

 in the main settlement. For the location of the strata, veins and 

 structures in the main part of the field, pi. 2 can be used 

 throughout the remainder of the discussion of structure. 



Location of axes in main, district. — In the eastern part of 

 the region the structure, reduced to its lowest terms, is that of 

 two east and west anticlines, slightly diverging eastward, the 

 north fold plunging w^est and the south one east. Between 

 them, owing to the abundance and peculiar distribution of the 

 slate strata, there has been developed a local anticline, which 



