Rejuvenated Appalachians in post-Newark time 



The Fall Zone peneplain 



Encroachment of Cretaceous sea and deposition of Coastal Plain beds 



Fig. 10.8. Early stages in Appalachian epeirogeny. Reproduced from Johnson, 1931. Diagrams 1, 2, 

 and 3 from top to bottom. 



143 



