65 



The granite-Coutchiching contact is crossed between 

 17 and 18. At the latter point, there is a good exposure 

 of a basic facies of the Algoman syenite intruding the 

 Coutchiching, which dips away from it on all sides. The 

 contacts are well exposed. 



The shore line is closely followed to the railway 

 crossing, and typical exposures of Coutchiching, abund- 

 antly supplied with secondary crystals of the aluminous 



Inclusions of Coutchiching mica schist in Algoman granite, 

 Rainy lake, Ontario. 



silicates may be seen from 19 to 20. At 20 the mica 

 schists clearly dip under the Keewatin. At 21 is a small 

 exposure of a conglomerate-like rock associated with the 

 Keewatin. 



35069—5 



