IODP SEDIS - Thesaurus -

Wissahickon Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Wissahickon Formation
RT	Virginia
	Pennsylvania
	Maryland
	Delaware
	lower Paleozoic
	Glenarm Series
SN	Lower Paleozoic (?). Prevalent structure is schistose. Delaware, N Maryland, SE Pennsylvania, and Virginia.