Passaic Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Passaic Formation
RTTriassic
 Jurassic
 Upper Triassic
 Lower Jurassic
 Pennsylvania
 New York
 New Jersey
 Brunswick Formation
 Newark Supergroup
 Newark Basin
SNLower Jurassic and Upper Triassic. SE Pennsylvania, New Jersey, and New York. In Newark Supergroup. Conformably overlies Lockatong Formation; underlies Orange Mountain Basalt. Formerly lower part of Brunswick Formation. Indexed with ages as applicable. Ad