GEOLOGY OF MOOSE RIVER GOLD DISTRICT — WOODMAN. 81 



the hanging wall lead are chiefly on the east plunge, and are 

 continued east of the fault. The foot- wall lead is not crenulated 

 here so much as in the quarry on areas 73 and 74. The total 

 breadth of quartz in the belt is eight to ten inches. 



Above the whin stratum mentioned lies the Ferguson, three 

 inches thick, dipping 60^ S. From tliis a shallow trench was 

 cut in 1899 in the south entrance to the quarry, to expose any 

 leads present. Five feet south of the Ferguson it brought to 

 liglit a strongl}' corrugated lead, one and one-half inches thick, 

 pinching perceptibly eastward. Six and a half feet from the first 

 lead is another, one-quarter inch thick. At seven and one-half 

 feet lies a half-inch vein, which may be an angular ; at nine and 

 one-half a one-inch corrugated lead ; at ten and one-half a 

 three-inch one ; and at eleven a lead one and one-quarter inches 

 thick, with some stringers on its hanging wall. The last four 

 are all rolled closely together and in sympath3^ At sixteen 

 feet is a one-inch lead which rolls so heavily as to reverse its 

 normal south dip in places. At 21 feet lies a quarter-inch lead, 

 and at 25.5 feet a three-quarter-inch one. At 32 feet from the 

 Ferguson is a large lead, six to twelve inches thick, with a strike 

 N. 87° W. and a surface dip of 63° S., becoming somewhat less 

 downward ; and claimed by some to be the Britannia. It is very 

 white, and lies in black graphitic slate ; but has little or none 

 of the arsenopyrite characteristic of that lead farther west. The 

 slate for 30 feet north, however, has much of it in crystalline 

 form. On the southeast side of this entrance to the quarry are 

 several thin leads. East of the trench, on the excavated bank, 

 is a narrow one, striking N. 87° W. and dipping 60° S. Prob- 

 ably it is identical with the one in the trench next south of the 

 proposed Britannia. 



Division ii : south anticline. — Three leads lie immediately 

 south of the synclinal axis. In a hole at the north end of area 

 31 is the Bigelow, sometimes called the Big White, sixteen to 

 24 inches thick ; and two and a half feet south of it a nine-inch 

 lead, both very dense and white. Their attitude is nearly or 



