Arching of Fall Zone peneplain and its Coastal Plain cover; regional superposition of southeastward-flowing streams 



The Schooley peneplain 



Arching of Schooley peneplain 



Fig. 10.9. Tertiary stages in Appalachian epeirogeny. Reproduced from Johnson, 1931. Diagrams 4, 

 5, and 6 from top to bottom. 



144 



