CORRELATION OF THE PRE-CAMBKIAN ON THE BASIS OF TWO AND ONLY TWO GRANITIC INVASIONS 











NORTHWEST OP 



LAKE SUPERIOB 







SOUTH OF LA 



KE SUPERIOR 





NORTH OF LAKE HURON 



SOUTHEASTERN DISTRICTS 









I 



„ 



ni 



IV 





VI 



VII 



Cbystal- Falls 





i 







im 



B E^a-o 



XV 







Keweesawam 

 (Epoch, Series) 



Dykes 





Kewecuawan 



Koweonawan 



Kewecuawan 





Keweenawan 









DykeB 



Dykes and Laccolith 



Silti 







i 





Aniuikian 

 (Epoch, Buries) 







Slates, iron formation, 

 quartzito 



Animikian 



Rove slate, iron 

 formation 



Animikian 



Rove- slate, iron 



A,„,„,k»„ 



Virginia slate, Biunbik L F. 

 Pokegame quartzite 



'""opps Formation 

 Slate, pfraywarkc, 

 chert, conglomerate 



Mil liig;immo slate 





Volcuuies, Michigan, me 

 Blate, Bijiki L F-, 

 Goodrich quartzite 



Cobalt Series 



Cobalt Series 



Cobalt Series 







biUBUN Interval 



Major unconformity 



Major unconformity 



Major unconformity 





Major unconformity 



Jfajor unconformity 



Major unconformity 



Pnronformirjf 





Pnconrorm.Iy 



Major unconformity 



Major unconformity 



Major unconformity 









" Revolution" 



Granite, syenite etc 



Granite gneiss 







Granite (Giants Range) 



Granite (Giaots Range) 



Granite [Prosquo Isle) 



Granite 





Granite (Killaraoy) 



Granite gneiss 



Granite (Lorrain) 



Granite (Moira) 



Granite (Picton) 





? 



Il 



1 i 



Tf.UISKAUIAN 



(Epoch, Series) 



Seine Series 



Slate, quartzite, 



Slate, quartzite, co-i^lomi-nitc, 



Graywarko, elate 



Grnywacke 



Knife Lake slate, 

 A gown I. P., 



Slate, crnywacko, 

 conglomerate 



Tyler slate, volcanies, 

 Ironwood I. F., Palms 



Paint slate, lavas, Hnnbury 

 slate, Vulcan I. F., Ajibik 

 quartzito, Hemlock volcanies 



Qninnesec schist, Hanburj 

 Slate, Vulcan L F-, 

 quartzite 



Negauneo I. F., Siamo 

 slate, Ajibik quartzito 









gs 











Unconformity 











Unconformity 



Unconformity 



Unconformity 



Unconformity 



Unconformity 











i 

 I 





Bruce 



(Epoch, Series) 





Steoprock Series 



quartzite, conglomerate 











Sunday quartzito 



Randvillo dolomite, 

 Sturgeon quartzite 



Quartzite 



Bandvilln dolomite, 

 Sturgeon quartzite 



We we slate, 

 Mesnatil quartzito 



Bruce Scries 



gray wacko, limestone, 

 conglomerate, quartzite 













Ephaubentia!; Interval 



Major miron/orm-ty 



Major unconformity 



Major unconformity 



Majnr unconformity 



Major unconformity 



Major unconformity 



afajorunconformiij/ 



Major unconformity 



ifajorurrcoii/ormitu 



Major unconformity 



Mo/orHneon/ormitj, 



If ajor unconformity 



Major unconformity 



Major unconformity 



Major unconformity 



5 



Laubentiaj) B evolution* 



Granite gneiss 



Granite gneiss 





Granite gneiss 



Granite gneiss 



Granite 



Granite gneiss 



Granite gneiss 



Granite gneiss 



— 





Granltef 



Granite gneiss 









If 



Geenvtlle 



(Epoch, Series) 

























Grenville 





Grenville 







§| 

 o -S 



Keewatin 

 (Epoch, Series) 





Keewatin 



Keewatin 



Keewatin 



Keewatin 



Keewatin 



Keewatin 





Keewatin 



Keewatin 



Keewatin 



Keewatin 



Keewatin 



Keewatin 









Coutchicihno 

 (Epoch, Beries) 



Coutchiching 





























•Aiimi (Prablenu o( Amrricin Gmlojj. p. 63) taka ciciplion io plscinf lbs L»n«nll»n Authorities for the sequence shown in e.ich of the Columns of the tabulation: III. IV, V, VI. VII, X. — Van Uitr and L*llh. U. 8. G. S. Won, 53. 1911. t Pcbbln Id TMdiikimiin. 



