'60 PHYSIOGRAPHY AJTD GEOLOGY" OF THE COASTAL PLAIN PROVINCE. 



Formations represented in the Virginia Coastal Plain. 



Age Formation Group 



Cenozoic 



Quaternary 



Recent fTalbot ^ 



Pleistocene J Wicomico I Columbia group 



[Sunderland 

 Tertiary 



Pliocene (?) Lafayette 



{Yorktown ^ 

 St. Mary's j. Chesapeake group 

 Calvert J 



Eocene 3 ^^J^^^y ( Pamunkey group 



) Aquia ( 



Mesozoic 



Cretaceous 



Upper Cretaceous 



Lower Cretaceous ) ^ apsco (pQ^Qm^g group 



patuxentj " ^ 



