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Mineral Resources On-Line Spatial Data

Tinton Formation

Tinton Formation - Sand, quartz and glauconite, sideritecemented, indurated, reddish-brown to dark-gray. The Tinton was extensively dissected prior to deposition of the overlying Hornerstown Formation. Unit can be traced in the subsurface only as far downdip (south) as the Freehold area, Monmouth County. The Tinton in the Freehold core is about 6 m (20 ft) thick and thickens to the east where at Rumson, Monmouth County, it is 12 m (40 ft) thick. The Tinton unconformably overlies the Kc4 cycle. The Tinton is more quartzose to the west and more glauconitic to the east. The unit represents an incomplete cycle of sedimentation as it consists only of subtidal marine beds and lacks nearshore sands. Siderite cement, which imparts the hardness to the Tinton, is irregularly distributed throughout the unit. Because of its extensive induration, sand and clay mineralogy was not determined. Gamma logs of the Tinton, because of the widespread presence of siderite cement in the matrix, have a relatively high intensity and are similar in shape to gamma logs for clayey units. No fossils were found in subsurface samples of this formation, but fossils from outcrops indicate a late Maastrichtian age.
StateNew Jersey
NameTinton Formation
Geologic ageUpper Cretaceous, upper Maastrichtian
Original map labelKt
CommentsSubsurface unit shown in cross section (NJ002) with different description that surficial units.
Primary rock typesand
Secondary rock type
Other rock types
Lithologic constituents
Major
Unconsolidated > Coarse-detrital > Sand (Bed)sand, quartz and glauconite, siderite-cemented, indurated, reddish-brown to dark-gray
Map references
Dalton, R. F., Herman, G. C., Monteverde, D. H., Pristas, R. S., Sugarman, P. J., 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) export file: geology.e00, scale 1:100,000, unit description files: cslegend.pdf and nlegend.pdf, metadata: metast.pdf.
Unit references
Dalton, R. F., Herman, G. C., Monteverde, D. H., Pristas, R. S., Sugarman, P. J., 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) export file: geology.e00, scale 1:100,000, unit description files: cslegend.pdf and nlegend.pdf, metadata: metast.pdf.
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, scale 1 to 100,000, 8 cross sections, 4 sheets, each size 58x41.
Geographic coverageMonmouth

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