Passaic Formation from the Newark rift basin. BOTTOM: New Brunswick, NJ, outcrop of part of Perkasie Member of Passaic Formation. Non-red lake highstand unit at base is overlain my deposits of shoaling lake. TOP: Lake low-stand deposit in Perkasie Member contains numerous vugs that previously were filled with sulphate evaporites. Photos by R.W. Schlische.
Passaic Formation from the Newark rift basin