358 THE ORE DEPOSITS OF 



have been taken carrying as h\g}\ as $90 in gold per ton. But 

 although these phenomenal values have been shown, the deposit 

 is essentially a big low-grade proposition, as are the other 

 deposits of the L'Abinie. 



The outcrop has been traced over a large area, but work 

 has as yet been confined to its outcrop in the McLeod gorge. 

 This property is owned by the Richfield Mining Company, 

 Limited, Halifax. 



Iron Cap. — Next to the Grandin brook deposit, Iron Cap 

 is in the most advanced stage of development. It outcrops 

 .*iOO yards E. N. E. of Mountain Top in precipitous clifis along 

 the right bank of the McLeod brook which here flows easterly 

 600 feet below the general level of the plateau. The deposit 

 consists of a bed of chlorite schist of undetermined thickness 

 carrying auriferous arsenopyrite and pyrrhotite. The bed has 

 been stripped along the brook for a distance of about 200 feet 

 exposing a section of about 25 feet in thickness. The schists 

 are here seen to be bent into an anticlinal fold and to dip east 

 and west of ics axis at low angles. A tunnel has been driven 

 into the ore-body for about 100 feet at the end of which the 

 schists make a sudden plunge to the south. The section 

 exposed may be divided into two zones: (1) an upper zone in 

 which pyrrhotite predominates and (2) a lower one in which 

 arsenopyrite is the principal ore mineral. Large lenses which 

 owe their shape to the sliding of corrugated masses of rock 

 over one another and almost horizontal veins filling cavities 

 produced by compression (Figs. 2, 3 and 4) are well developed 

 here. The ore, although it has not shown the phenomenal high 

 values of some of the Mountain Top ore is more abundant and 

 more evenly distributed through the rock-mass. The series of 

 chlorite schists, of which this deposit is a member, has been 

 traced over a wide area and at all its outcrops it is found to 

 contain metalliferous ores. It is owned by the Richfield Mining 

 Company, Limited, Halifax. 



