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Monmouth Group, Matawan Group and Magothy Formation

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Silty clay, glauconitic sandy clay, sand, gravel.
State New York
Name Monmouth Group, Matawan Group and Magothy Formation
Geologic age Upper Cretaceous
Lithologic constituents
Major
Unconsolidated > Coarse-detrital > Gravel
Unconsolidated > Fine-detrital > Claysilty clay, glauconitic sandy clay
Unconsolidated > Coarse-detrital > Sandsandy clay, sand
Minor
Unconsolidated > Fine-detrital > Siltsilty clay
Comments part of Coastal Plain Sediments 0-2000 ft. (0-600 m).
References

Fisher, D.W., Isachsen, Y.W., and Rickard, L.V., 1970, Geologic Map of New York State, consisting of 5 sheets: Niagara, Finger Lakes, Hudson-Mohawk, Adirondack, and Lower Hudson, New York State Museum and Science Service, Map and Chart Series No. 15, scale 1:250,000.
NGMDB product
Counties Kings - Nassau - Queens - Suffolk