324 A. E. BARLOW — LAURENTIAN AND HURONIAN ROCKS. 



DELL TOWNSHIP, DAISY AND BABY LAKES AND LAKE ALICE. 



Direction and Extent qftht Contact. — The contact runs in general about 

 northeast through the township of Dell, striking Daisy lake near the 



line between lots 6 and 7. in c session [, of the township of Neelon. 



Continuing through Daisy lake to its northeastern end. the line crosses 

 through Baby lake and the northern end of Lake Alice. 



Microscopic Examination of foliated Gneiss. — The Huronian throughout 

 this distance is represented chiefly by a light yellowish feldspathic 

 quartzite. As the gneiss is approached this quartzite shows abundant 

 signs of alteration and disturbance. The immediate contact shows an 

 intermixture of a dark green chlorite schist, which probably belongs to 

 the Huronian. and a dark red well-foliated gneiss. Mr W. V. Ferrier. 

 lithologist to the Canadian Geological Survey, who examined a thin 

 section of this rock, says: 



" Shows an intermixture of a granitic rock with a chlorite schist. In the granitic 

 portion the quartz and feldspars are broken up into a tine mosaic,, through which 

 occasional larger grains are distributed. The quartz tills in the interstitial space 

 between the larger fragments of feldspar. Plagioclase is present, but orthoclase 

 predominates. A number of curious large crystals occur, too decomposed to admil 

 of positive identification. The central portion of these crystals is made up of 



serpentinous material, and from the form of - s.of them the original material 



was probably hornblende. A much-decomposed pyroxene is also present. The 

 schistose portion of this slide is exceedingly decomposed." 



Daisy Lake Rocks. — The northern shore of Daisy lake is occupied by a 

 reddish feldspathic quartzite interlaminated with some dark, grayish- 

 green, slaty graywacke. The strike of these is S. •'15° W. : dip, S. 55° E. 

 <70°-80°. The whole section, as exposed on this shore for a quarter of 

 a mile to the northwest, show- evidence of the most profound disturb- 

 ance and alteration. The quartzites, besides being hardened, are pene- 

 trated by veins of secondary quartz, both parallel to their bedding and 

 reticulating in all direction-', the whole being much squeezed and con- 

 torted. At the contact on the south shore both rocks dip southeast 

 <70°-75°, the quartzite dipping into or under a red granitoid gneiss. 

 Microscopically, the quartzite is light gray in color, with a Taint flesh- 

 red tint on weathered surfaces. It seems almost completely vitrified 

 and presents veins of secondary quartz running parallel with the -t rati- 

 fication. 



Microscopic Examination of th Quartzite. — Mr Ferrier, who examined a 

 thin slice of this rock under the microscope, says : 



"An exceedingly finely laminated quartzite, the lamination being marked by 

 little strings of muscovite running between the quartz grains. It is evidently a 

 highly altered da-tic. in which the quartz has almost entirely recrystallized under 



