GEOLOGY OF MOOSE RIVER GOLD DLSTRICT — WOODMAN. 61 



to this class show signs of having been folded or disturbed to 

 any extent since deposition. 



ATTITUDE. 



In a large way, the leads are chiefly parallel with the 

 stratification of the country rock, thus partaking of all the 

 structural peculiarities of the sediments. They are folded with 

 the latter, and have been affected by faults as they have. This 

 has caused it to be possible, in interpreting the structure of the 

 region, to use these veins where the slate and quartzite were for 

 the most part hidden. 



Relation to belts of strata. — In position, the leads may lie in 

 or between slate strata, or at the contact of slate and whin. 

 While in most districts the latter situation is the more common, 

 here it is not so. At many horizons there is no quartzite for a 

 wall, yet leads occur in the slate in well-defined belts. This 

 being the case, it is surprising to find the proportion of veins 

 that break across from one bed to another small — fully as small 

 as in other gold districts in the series. Where such irregularity 

 does occur, it is always within narrow limits, as from the hang- 

 ing to foot-wall sides, or vice versa, in a single horizon of slate 

 backed up by whin. Where no quartzite is present, the distance 

 of cross fracture is no greater. In the unstratified section of 

 such vein, the wall is usually slightly more irregular than that 

 of a bedded lead. Frequently only part of a lead has thus 

 broken across, the rest continuing conformable with the sedi- 

 ments. Such bifurcations have not, in this district, been especi- 

 ally rich in gold. 



Angiday^s. — Closely related to these is the class of veins 

 called " angulars " or " anglers ". These are usually branches of 

 the main stratified lead, cutting irregularly across all structures, 

 and dying out at a greater or less distance from the parent mass. 

 They occupy fissures in the form often of irregular rents, which 

 are widest near the main vein and decrease in size away from 

 it, and evidently originated from the stratified lead. The char- 



