135 million years of history in southwestern Philadelphia, Pennsylvania

GSA Field Guide 8: Excursions in Geology and History: Field Trips in the Middle Atlantic States ◽

10.1130/2006.fld008(11) ◽

2006 ◽

pp. 217-227 ◽

Cited By ~ 1

Author(s):

Raymond A. Scheinfeld ◽

Calvin M. Davenger

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