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The Navesink Formation is a 66 to 70
mya Mya may refer to: Brands and product names * Mya (program), an intelligent personal assistant created by Motorola * Mya (TV channel), an Italian Television channel * Midwest Young Artists, a comprehensive youth music program Codes * Burmese ...
greensand glauconitic
marl Marl is an earthy material rich in carbonate minerals, clays, and silt. When hardened into rock, this becomes marlstone. It is formed in marine or freshwater environments, often through the activities of algae. Marl makes up the lower part o ...
and sand geological formation in New Jersey. It is known for its Cretaceous period fossil shell beds and dinosaur bones.


Description

The Navesink Formation, named after Navesink, New Jersey, is typically found above the Mount Laurel Formation and under the Red Bank Formation. There is a 5 mya gap between the Navesink and Mount Laurel Formations. The Navesink varies in depth from to across its range from Sandy Hook to Pennsville. The Navesink has the highest radon gas potential of the New Jersey geologic formations.


Sites

There are several locations where the Navesink Formation is visible including
Poricy Park Poricy Park is a nature preserve and park in Middletown Township, New Jersey, Middletown Township, Monmouth County, New Jersey. It is known for its Cretaceous period fossil shell beds along the Poricy Brook streambed, open to the public for limi ...
in Middletown, New Jersey which has several exposures along Poricy Brook. There is also exposure in Big Brook Park in Marlboro, NJ.


Paleofauna

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References

{{Reflist Cretaceous geology of New Jersey Maastrichtian Stage of North America