38U 



A. \\ l.\( I1KI.I. — KESULTS OF A.RCHEAN STUDIES. 



formation also embraces heavy beds of magnetite. More correctly, certain 

 beds become richly magnetitic. ami within limited districts arc dense eranu- 

 lar magnetite, oearly pure, and from two to lour feel t h i < -k. About Gun- 

 flint lake the argillites contain occasional pebbles and even become conglom- 

 eratic; :; but about Thunder Way they become well-developed conglomeratic 

 slates, and have been described as "slate conglomerates" and referred to 

 the lower member of the Upper Copper-bearing -cries. 



The characters of the Aniinikc series arc so generally understood that I 

 -hull offer no further stratigraphical details in this place. Professor Irving 

 was acquainted with these rocks in their eastward extension ; but he Btrangely 



Fioi u 8.— C 'I" Animikt and Kewatin Schists on the North S 



This is the only point on the lake where the Kewatin comes to the shore. 



K £ W A TIN 



Cioubi •!.— /.' ativeF f the A 



\ nflint Lake, 



towing junction of the two systems and transition from Kewatin through orystalline Bchiste to 

 \ ertical dimensions «'xaKKerate<l, as usual. 



identified them with the system of semi-crystalline schists. He was quite 

 aware of the great difference in attitude of the two; bul he argued that 

 perhaps their outcrops were located on opposite Bides of a granitoid area, 

 the uplift of which had tilted the whists to a greater extent on one ~ i < J « ■ 



than the other. He makes no menti f the discovery of an net mil <•■ »nt net . 



with the two dips brought into immediate juxtaposition. He reports, how- 

 r, an increased • I i [ > of the A.nimike schists in approaching Gunflinl lake 



' 



ii io3, i<n 



