378 
UPPER DELAWARE VALLEY 
HENRY B. KUMMEL 
MIOCENE 
Kirkwood formation 
(Sand and clay) 
Unconformity 
EOCENE 
Shark River marl 
CRETACEOUS 
Manasquan marl 
Vincentown sand 
Hornerstown marl 
Tinton bed 
Red Bank sand 
Navesink marl 
Mt. Laurel sand 
Wenonah sand 
Marshalltown clay-marl 
Englishtown sand 
Woodbury clay 
Merchantville clay 
Magothy formation 
(Sand and lignitic clay) 
Unconformity 
Raritan formation 
(Sands and variegated clays) 
Great unconformity 
TRIASSIC 
Brunswick shales 
Lockatong argillites 
Stockton arkose sandstones 
Three or more basalt flows and one or 
more intrusive diabase sills at various 
horizons. ‘Total maximum thickness 
Great unconformity 
DEVONIAN 
GREEN POND 
100 feet 
11 feet 
25 feet 
25-70 feet 
30 feet 
10-20 feet 
o-100 feet 
25-40 feet 
5-60 feet 
35-20 feet 
30-35 feet 
20-100 feet 
50 feet 
60 feet 
25-175 1eet 
150-250 feet 
6,000-8,000 feet 
3,500 feet 
2,300-3,100 feet 
3,000 feet 
Skunnemunk conglom- 
erate 
Bellvale sandstone 
Marcellus shale Traces Pequanac shale 
Onondaga limestone Undet. Kanouse sandstone 
Esopus grit 
375 feet Not recognized 
Oriskany formation 170 feet 
a3 “cc 
(Siliceous limestones and 
sandstones) 
MT. REGION 
