GEOLOGY OF MOOSE RIVER GOLD DISTRICT WOODMAN. 19 



PAGE 



Ratio of vein material to sediments . . 68 

 Part 3. Metallic contents of the rocks. 



Pyrlte— 



Relation to stratification planes — 69 



Attitude in leads and cross veins .... 70 



Arsenopyrite 70 



Minor sulphides 72 



Gold- 



In sediments 72 



In veins : special enrichment 72 



Relations to vein walls 73 



Britannia and Kaulback belts 73 



Part U. Summary of (leological history. 



Appendix. 

 Detailed description of leads— pagk 



Division i 77 



Division ii 78 



North anticline 78 



Comparison with " West Mine" 79 



Subsidiary anticline 80 



South anticline 81 



Division iii 82 



North anticline 82 



Subsidiary anticline 82 



South anticline 83 



Three trenches 83 



Division iv 84' 



Description of plates 



INTRODTTCTION. 



Location.. — The settlement of Moose River Mines lies in lat. 

 44° 58' 55" N., long. 62" 56' 40" W. ; and is 37.5 miles 

 northeast (true meridian) from Halifax. Its rocks form a por- 

 tion of the upland, or Cretaceou.s peneplain, here very flat. The 

 surface over many square miles of this region is so even that 

 Sphagnum abounds, with moist soil below ; and for long distances 

 a well-driven pick will strike bedrock anywhere. On the north 

 barrens extend for several miles ; to the other side lies more 

 timbered country, becoming swampy toward the Tangier granite^ 

 with numerous lakes. Natural exposures are few, and the true 

 structure is discoverable only by means of underground work- 

 ings or surface trenches. 



The settlement was made, as many others have been, merely 

 by clearing the timber off" the level land and damming up a 

 small stream, Moose river, for power. Mining has been carried 

 on in a small way for many years, but no shafts have been sunk 

 below 500 feet. In the course of exploration, numerous .shallow 

 pits and trenches have been cut, exposing the bedrock across 

 the strike of the strata. Many hundreds of feet of trenches 

 were opened for me in 1899, in the course of economic develop- 

 ment. A few quarries, located as they all are in rather critical 

 parts of the field, afford excellent opportunities for study. The 

 surrounding country is evenly covered with drift, nowhere very 



