| Upper Cretaceous & Tertiary Formations of New Jersey Coastal Plain |
Cohansey - Cross bedded quartz sand. Coastal conditions.
Miocene / Pliocene.
Kirkwood - Light- colored massive to thick bedded
micaceous, very coarse quartz sand Inner shelf conditions.
Miocene.
Shark River - Glauconitic sand and quartz glauconitic
mudstone. A consolidated 1 meter layer lies at the top of the
formation. Middle shelf conditions. Eocene
Manasquan - Farmingdale member is mottled, somewhat
clayey, medium to coarse, quartz glauconitic sand. Deal
member is a thick, slightly glauconitic, clayey, fine grained
quartz sand to a clayey, sandy silt. Middle shelf conditions.
Eocene.
Vincentown - Massive quartz sand to a quartz limesand.
Inner shelf conditions. Paleocene.
Hornerstown - Massive bedded sand and clay that is richly
glauconitic. May contain lignite and amber. Middle to outer
shelf conditions. Cretaceous to Paleocene.
Monmouth Group - Group of formations consisting of the
Mount Laurel, Navesink, Red Bank, and Tinton formations.
For group information, see Monmouth group. Cretaceous.
Miocene / Pliocene.
Kirkwood - Light- colored massive to thick bedded
micaceous, very coarse quartz sand Inner shelf conditions.
Miocene.
Shark River - Glauconitic sand and quartz glauconitic
mudstone. A consolidated 1 meter layer lies at the top of the
formation. Middle shelf conditions. Eocene
Manasquan - Farmingdale member is mottled, somewhat
clayey, medium to coarse, quartz glauconitic sand. Deal
member is a thick, slightly glauconitic, clayey, fine grained
quartz sand to a clayey, sandy silt. Middle shelf conditions.
Eocene.
Vincentown - Massive quartz sand to a quartz limesand.
Inner shelf conditions. Paleocene.
Hornerstown - Massive bedded sand and clay that is richly
glauconitic. May contain lignite and amber. Middle to outer
shelf conditions. Cretaceous to Paleocene.
Monmouth Group - Group of formations consisting of the
Mount Laurel, Navesink, Red Bank, and Tinton formations.
For group information, see Monmouth group. Cretaceous.
Matawan Group - Group of formations consisting of the
Woodbury, Englishtown, Marshalltown, and Wenonah. For
group information, see Matawan group
Magothy - Interbedded dark micaceous silts and clays, light
colored sands and occasional sandstone beds. May contain
marcasite / pyrite concretions, lignite and amber. Continental to
coastal conditions (youngest beds are total marine).
Raritan - Light colored sands and clays. May contain
marcasite / pyrite concretions, lignite (fossil wood) and amber.
Continental conditions (except the upper most Woodbridge clay
member, which is marginal marine).
Woodbury, Englishtown, Marshalltown, and Wenonah. For
group information, see Matawan group
Magothy - Interbedded dark micaceous silts and clays, light
colored sands and occasional sandstone beds. May contain
marcasite / pyrite concretions, lignite and amber. Continental to
coastal conditions (youngest beds are total marine).
Raritan - Light colored sands and clays. May contain
marcasite / pyrite concretions, lignite (fossil wood) and amber.
Continental conditions (except the upper most Woodbridge clay
member, which is marginal marine).
Tinton - Thick dark gray to brownish gray to reddish brown,
medium to coarse, quartz and glauconite sandstone. The only
Cretaceous formation that is consolidated in the state. Inner
shelf conditions.
Red Bank - Shrewsbury member is a cross-bedded light gray
to white to orange-pink and reddish-brown, micacous, fine to
medium feldspathic quartz sand. Sandy Hook member is a dark
gray, micacous, silty, feldspathic, clayey quartz sand. Inner to
middle shelf
conditions.
Navesink - Thick dark greenish- grey clayey glauconitic sand.
Middle to outer shelf conditions.
Mount Laurel - Thinly bedded dark clays and light
cross-bedded sands interbedded with massively bedded sands,
massive sand beds, bioturbated pebble sand. May contain
lignite. Inner to middle shelf conditions.
medium to coarse, quartz and glauconite sandstone. The only
Cretaceous formation that is consolidated in the state. Inner
shelf conditions.
Red Bank - Shrewsbury member is a cross-bedded light gray
to white to orange-pink and reddish-brown, micacous, fine to
medium feldspathic quartz sand. Sandy Hook member is a dark
gray, micacous, silty, feldspathic, clayey quartz sand. Inner to
middle shelf
conditions.
Navesink - Thick dark greenish- grey clayey glauconitic sand.
Middle to outer shelf conditions.
Mount Laurel - Thinly bedded dark clays and light
cross-bedded sands interbedded with massively bedded sands,
massive sand beds, bioturbated pebble sand. May contain
lignite. Inner to middle shelf conditions.
Wenonah - Massive, gray, poorly sorted clayey and silty,
micaceous sand. Inner shelf conditions.
Mashalltown - Dark, silty to clayey, mottled, micacous,
quartz, glauconitic sand. May contain marcasite / pyrite
concretions, lignite and amber. Middle to outer shelf
conditions.
Englishtown - Pure white to yellow, sometimes
cross-bedded quartz sand. Coastal conditions.
Woodbury - Dark, massive, micacous, somewhat clayey silt
with small amounts of siderite, glauconite, and lignite
(fossilized wood). Inner (embayment type) conditions.
Merchantville - Dark, sometimes interbedded glauconitic,
micaceous silts and clays. Inner to middle shelf conditions.
micaceous sand. Inner shelf conditions.
Mashalltown - Dark, silty to clayey, mottled, micacous,
quartz, glauconitic sand. May contain marcasite / pyrite
concretions, lignite and amber. Middle to outer shelf
conditions.
Englishtown - Pure white to yellow, sometimes
cross-bedded quartz sand. Coastal conditions.
Woodbury - Dark, massive, micacous, somewhat clayey silt
with small amounts of siderite, glauconite, and lignite
(fossilized wood). Inner (embayment type) conditions.
Merchantville - Dark, sometimes interbedded glauconitic,
micaceous silts and clays. Inner to middle shelf conditions.
| Monmouth Group |
| Matawan Group |
| * A solid line in between formations denotes a disconformable contact. |
A. Continental fluvial (overbank / natural levee) - Raritan, Magothy.
B. Continental fluvial (river fill / point-bar) - Raritan, Magothy, Englishtown, and Cohansey.
C. Continental fluvial ("mangrove" swamp, marginal marine) - Raritan.
D. Continental fluvial (flood basin) - Raritan, Magothy.
E. Coastal (beach) - Magothy, Englishtown, Cohansey.
F. Near-shore deltaic (marginal marine) - Magothy and Englishtown.
G. Off-shore deltaic (full marine) - Merchantville.
H. Near-shore marine - Mount Laurel, Red Bank, Vincentown, and Kirkwood.
I. Inner shelf (embayment) - Woodbury, Marshalitown
J. Inner shelf (open marine) - Merchantville, Woodbury, Englishtown, Wenonah, Red Bank, Tinton, Vincentown,
Manasquan, and Kirkwood.
K. Middle shelf (open marine) - Merchantville, Marshailtown, Wenonah, Mount Laurel, Navesink, Red Bank,
Hornerstown, Manasquan, and Shark River.
L. Outer-shelf (open marine) - Marshailtown, Navesink, Hornerstown, and Manasquan.
M. Basement rock (subsurface) - Pre-Cretaceous formations.
B. Continental fluvial (river fill / point-bar) - Raritan, Magothy, Englishtown, and Cohansey.
C. Continental fluvial ("mangrove" swamp, marginal marine) - Raritan.
D. Continental fluvial (flood basin) - Raritan, Magothy.
E. Coastal (beach) - Magothy, Englishtown, Cohansey.
F. Near-shore deltaic (marginal marine) - Magothy and Englishtown.
G. Off-shore deltaic (full marine) - Merchantville.
H. Near-shore marine - Mount Laurel, Red Bank, Vincentown, and Kirkwood.
I. Inner shelf (embayment) - Woodbury, Marshalitown
J. Inner shelf (open marine) - Merchantville, Woodbury, Englishtown, Wenonah, Red Bank, Tinton, Vincentown,
Manasquan, and Kirkwood.
K. Middle shelf (open marine) - Merchantville, Marshailtown, Wenonah, Mount Laurel, Navesink, Red Bank,
Hornerstown, Manasquan, and Shark River.
L. Outer-shelf (open marine) - Marshailtown, Navesink, Hornerstown, and Manasquan.
M. Basement rock (subsurface) - Pre-Cretaceous formations.
| Regions Of Deposition (Cross sectional View) Of The Continental Shelf |
| Regions Of Deposition (Aerial View) Of The Continental Shelf |