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NEW YORK STATE MUSEUM 



or pegmatic dikes. In many places they constitute a large propor- 

 tion of the formation in which they occur. They doubtless vary 

 in age, but for the most part seem to belong to the later period of 

 metamorphism. ]\Iany of them are massive and largely free from 

 foliation. They no doubt have a complex origin between simple 

 aqueous segregation on the one side and true igneous intrusion on 

 the other. 



Summary of formations 

 Group a Quaternary deposits 



(i) Glacial drift 



Till and modified drift, extra 

 marginal outwash, sands and 

 gravels, etc. 



r 



Occurs as a surface 

 mantle over nearly all 

 of the region under 

 discussion, except the 



immediate sea margin 



UX CONFORMITY 



Group b Tertiary and Cretaceous deposits 



(2) Tertiary outHers 



(a) Pliocene littoral deposits 



(Bridgetons?) 



(b) Pliocene ''fluffy'" sand (Beacon 



hill) 



(3) Upper Cretaceous beds 



(a) Lignitiferous sand (marl series) 



(b) ^Matawan beds (clay marls) 



(c) Raritan (clays and sands) 



Confined to Long Is- 

 land, Staten Island 

 and the New Jersey 

 coast 



UX CONFORMITY 



Group c Jura-Trias formations 



(4) Palisade diabase intrusion "^ Confined 



(5) Newark series of conglomerates, 



sandstones and shales 



to the west 

 side of the Hudson 

 south of the 

 lands 



High- 



