CHAPTER VI. 



PLEISTOCENE CLAYS. 



CONTENTS. 



Glacial and aqueo-glacial clays. 



Origin. 



In the Hackensack valley. 



In the Lower Passaic valley. 



In the Upper Passaic basin. 



In other localities. 

 Cape May clays. 



Origin. 



Localities. 

 Pensauken clays. 



The Fish House clay. 



Fossils. 

 The Bridgeton formation. 



The Pleistocene formations, as at .present recognized in New 

 Jersey, may be subdivided as follows : 



A. Glacial and aqueo-glacial. 1 



i. Late deposits (Wisconsin age). 



2. Earlier deposits (Kansan (?) age). 



B. Non-glacial, 

 i. Cape May. 



2. Pensauken. 



3. Bridgeton. 



Extensive clay deposits of late-Glacial age occur at several 

 points in northern New Jersey. In southern New Jersey, both 

 the Cape May and Pensauken formations contain beds of work- 

 able clay, and thin seams occur in the Bridgeton formation. 



1 These deposits are described in full in Vol. V, Report on Glacial Geology. 



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