Towaco and Boonton formations from the Newark rift basin. TOP: Glacially polished basalt-clast-bearing conglomerate from Boonton Formation near Ramapo fault in Montville, NJ; the implication is that some basalt extended beyond the border fault, was eroded, and deposited in alluvial fans along the border fault. BOTTOM: Bedding-plane surface with numerous Grallator footprints from Towaco Formation near Boonton, NJ. Exhibit is from the Rutgers Geology Museum. Photos by R.W. Schlische.
Towaco and Boonton formations from the Newark rift basin