256 THE MAKQUETTE IKON BEARING DISTEICT. 



ledges were broken in the two directions according to a rectangular system, 

 and the topograjjli)^ has a corresponding an-angement. The great bluffs 

 north of the south arm of Goose Lake are cut by deep ravines running 

 in a north-south direction, or in a direction somewhat east of north, corre- 

 sponding to one set of folds. The changing strikes and dips, showing a 

 northward-plunging anticline compounded of the two foldings, may be seen 

 along the face of the exposures east of the south arm of Goose Lake, 

 Similar eastward-plunging anticlines and synclines may be observed along 

 the west side of the north-south valley separating the exposures of the Wewe 

 slate and Kona dolomite in the southeast part of sec. 13 and the northeast 

 part of sec. 24, T. 47 N., R. 26 W. 



Along the eastward-facing cliff of limestone just west of the Wewe 

 slate, in the southeast part of sec. 13, T. 47 N., R. 26 W , below the lime- 

 stone, there is found a considerable quantity of green schist which is cut by 

 o-rauite veins. Upon this material is a conglomerate containing numerous 

 pebbles of the subjacent green schist and granite. This grades quickly up 

 into graywacke, and this above into the limestone. The green schist cut 

 by granite is identical in character with that of the Archean, and is taken to 

 be of Archean age. Therefore we have the Kona dolomite resting uncon- 

 formably on the Archean. It follows that during the time of the deposition 

 of the Mesnard quartzite to the east this part of the district was above the 

 water, and that it was submerged in Kona time. 



SECTION III.— THE WEWE SL,ATE. 



The name Wewe slate is given to this formation because it occurs in 

 typical development on the Wewe Hills, southwest of Goose Lake (Atlas 

 Sheet XXXV), and because the predominant rock is a slate. With the 

 slate are graywackes, conglomerate, mica-slates, and in places mica-schists. 



DISTRIBUTION, EXPOSURES, AND TOPOGRAPHY. 



Starting at the west side of Goose Lake (see Atlas Sheet IV), tlie belt 

 extends in a general westerly course for about 3 miles, having, however, 

 for this distance tortuous boundaries and a greatly varying width. It will 

 be seen that the Kona dolomite begins east of Goose Lake as a broad belt. 



