440 



W. B. Clark — The Matawan Formation. 



of the Neocomian and G-ault of Europe. The Cliffwood clays 

 are considered by Professor Hollick and Mr. Berry to show 

 Cenomanian characteristics in the flora, and a study of the 

 fauna will doubtless throw much important new light upon this 

 division of the Cretaceous. 



It is evident, therefore, that the Atlantic Coast Cretaceous 

 formations represent a considerable part of the European series, 

 although the data at hand are insufficient as yet for complete 

 correlation of the several horizons. 



In the following table an approximate correlation of the 

 Atlantic Coast Cretaceous formations is suggested. 



Age. 



Formations. 



Members. 





Eocene 



Sharkriver 

 10-15 ft. 









Q 



Ph 



o 



Danian 



Manasquan 

 30-50 ft. 









Rancocas 

 30-125 ft. 



Vincentown Limesands 



Marl 





Sewell Marls 







Senonian 



Monmouth 

 30-200 it. 



Redbank Sands 



and 





Navesink Marls 







Mt. Laurel Sands 

 (Wenonah Sand of 

 N. J. Geol. Survey) 



Clay 

 Marl 



Cretaceous 



Matawan 

 20-220 ft. 



Hazlet Sands 

 Marshalltown Sand and 



Clay bed 

 Columbus Sand bed 



Series 





Crosswicks Clays 

 Woodbury Clay bed 

 Merchantville Clay bed 







Cenomanian 

 Albian- 



Neocomian 



Magothy and 



Cliffwood 

 bedslO-lOOft, 





Transi- 

 tional 

 deposits 





Raritan 

 200-400 ft. 









Patapsco 

 150-240 ft. 





Potomac 

 Group 





Arundel 

 . 0-125 ft. 







'•) 





Patuxent 

 50-100 ft. 







Geological Laboratory, Johns Hopkins University. 



