Mt. Laurel-Navesink Formation

Dark greenish brown and dark gray, highly glauconitic sandy silt and silty sand.
State Delaware
Name Mt. Laurel-Navesink Formation
Geologic age Cretaceous
Lithologic constituents
Major
Unconsolidated > Coarse-detrital > Sandhighly glauconitic sandy silt and silty sand.
Unconsolidated > Fine-detrital > Silthighly glauconitic sandy silt and silty sand.
Comments Upper Cretaceous, Monmouth Group, may be overlain locally by the Pleistocene Columbia Formation
References

Spoljaric, Nenad and Jordan, Robert R., 1966, Generalized Geologic Map of Delaware SP4, State of Delaware, Delaware Geological Survey, scale ca. 1:300,000. Digitized by the Water Resources Division of the U.S. Geological Survey in the mid 1990's.

NGMDB product
Counties New Castle