240 THE MAKQUETTE lEON-BEARIXG DISTRICT. 



forming- embayments on the west and southwest slopes of a large granite 

 bluff, are magniiicent exposures of a great granite-conglomerate. The 

 pebbles and bowlders of the rocks are predominantly of coarse and fine 

 granite, and with these are abundant pebbles of quartz and green schist, 

 and fewer of jasper. Interstratified with the coarse conglomeratic bands 

 are fine-grained conglomerates, which are so thoroughly cemented as to 

 resemble original granite. The iuterlaminutions of materials of different 

 degrees of coarseness in places give the rock a fine banding, which makes 

 it in a remarkable degree resemble gneiss. Nowhere was the conglomerate 

 found in actual contact with the granite, but as the various granitic frag- 

 ments are identical with the exposures of granite below, no one can doubt 

 that the pebbles and bowlders are from that source. Southeast of the 

 corner, in sec. 16, are exposures of schistose and feldspathic quartzite 

 resembling gneiss. This feldspathic quartzite or recomposed granite grades 

 into the ordinary white quartzite. 



SECTION II.— THE K03S"A DOLOMITE. 



The name Kona dolomite is given to this formation because the Kona 

 Hills, rising from the east shore of Goose Lake (Atlas Sheets XXXIV and 

 XXXV) as large bluffs with precipitous cliffs, are composed of typical rocks 

 of the formation, and because dolomite is, upon the whole, the predomi- 

 nant rock. 



DISTRIBUTION, EXPOSURES, AND TOPOGRAPHY. 



Starting at Mount Mesuard (Atlas Sheet IV), the area covered by the 

 Kona formation rapidly widens in passing westward. From south of Mud 

 Lake the belt again narrows in going toward the west, until at Morgan 

 Furnace it is only about a sixteenth of a mile wide. Farther to the west no 

 exposures of this limestone are found, but its horizon may be represented 

 by a belt of slates and quartzites east of Teal Lake. 



On tlie south side of the Algonkian the formation has a much more 

 irregular distribution. Starting at the sand plain just west of Lake Superior, 

 it extends west nearly half a mile, where it disappears. About a mile 

 to the westward, southeast of Lake Wabassin, the formation rea])pears 



