Fig. 192. Map of North America, showing the sinuous trend of the Ap- 

 palachian folds (see text) and the domes and basis. A=iAlle- 

 ghany basin; AM^^AIabama-Mississil^pi basin; l=Iozva basin; 

 l\=IlUnois basin; J^Janics Bay basin; L^.9^ Lmvrcnce basin 

 (Montreal, etc.); M^Michigaii basin; 'N=N'e7i' York basin; 

 0=:0klalwma basin ; o=Ottazva basin ; Q^=Quebec basin. The 

 line or lines between basins represent anticlines. The domes 

 are: The Adirondack; west of this the Ontario: north of this the 

 North Ontario; southwest of this the Wisconsin dome. In the 

 southern area are: the Cincinnati, the Nashviile, and the Ocark 

 domes. 



809 



