|Geologic age||Upper Cretaceous, upper Maastrichtian|
Unconsolidated > Coarse-detrital > Sand (Bed)Sand, quartz, and glauconite in varying proportions, very clayey and locally indurated by siderite into hard, massive ledges. Sand is dark gray to dark yellow where unweathered; where weathered, siderite changes color of unit to orange brown because of iron oxides, and the formation is stained or cemented in exotic patterns.
Unconsolidated > Fine-detrital > Clay (Bed)very clayey
Unconsolidated > Coarse-detrital > Gravel (Bed)In these updip areas, fine gravel, 1 cm (0.4 in) maximum diameter, or large shell concentrations are found along the basal contact. The typical basal bed is a massive, glauconitic (10-35 percent), fine to medium-grained quartz sand with scattered gravel. The massive character of the basal bed is the result of extensive bioturbation.
Dalton, R.F., Herman, G.C., Monteverde, D.H., Pristas, R.S., Sugarman, P.J., and Volkert, R.A., 1999, New Jersey Department of Environmental Protection, Bedrock Geology and Topographic Base Maps of New Jersey: New Jersey Geological Survey CD Series CD 00-1; ARC/INFO (v. 7.1), scale 1:100,000.
Owens, James P., Sugarman, Peter J., Sohl, Norman F., Parker, Ronald A., Houghton, Hugh F., Volkert, Richard A., Drake, Avery A., Jr., and Orndorff, Randall C., 1998, Bedrock Geologic Map of Central and Southern New Jersey: U.S. Geological Survey Miscellaneous Investigations Series Map I-2540-B, 8 cross sections, 4 sheets, each size 58x41, scale 1:100,000.
Owens, J.P., and Sohl, N.F., 1973, Glauconites from the New Jersey-Maryland Coastal Plains; Their K/Ar ages and use in stratigraphic studies: Geological Society of America Bulletin, v. 84, no. 9, p. 2811-2838.
Richards, H.G., 1958, The Cretaceous fossils of New Jersey: State of New Jersey, Department of Conservation and Economic Development, Bulletin 61, pt. I, 364 p.
Owens, J.P., Sohl, N.F., and Minard, J.P., 1977, A field guide to Cretaceous and lower Tertiary beds of the Raritan and Salisbury embayments, New Jersey, Delaware, and Maryland: Washington, D.C., American Association of Petroleum Geologists and Society of Economic Paleontologists and Mineralogists, 113 p.
Sugarman, P.J., Miller, K.G., Bukry, David, and Feigenson, M.D., 1995, Uppermost Campanian-Maestrichtian strontium isotopic, biostratigraphic, and sequence stratigraphic framework of the New Jersey Coastal Plain: Geological Society of America Bulletin, v. 107, no. 1, p. 19-37.