|Name||Beekmantown Group, Lower Part|
|Geologic age||Lower Ordovician|
Sedimentary > Carbonate > Dolostone (Bed)Very thin to thick-bedded, interbedded dolomite and minor limestone. Upper beds are light-olive-gray to dark-gray, fine- to medium-grained, thin- to thick-bedded dolomite. Middle part is olivegray-, light-brown-, or dark-yellowish-orange- weathering, dark-gray, aphanitic to fine-grained, laminated to medium-bedded dolomite. Lower beds consist of medium-light- to dark-gray, aphanitic to coarse-grained, laminated to medium-bedded, locally slightly fetid dolomite having thin black chert beds, quartz-sand laminae, and oolites.
Sedimentary > Carbonate > Limestone (Bed)light-gray to light-bluish-gray-weathering, medium-dark- to dark-gray, fine-grained, thin- to medium-bedded limestone.
Sedimentary > Chemical > Chert (Bed)locally slightly fetid dolomite having thin black chert beds, quartz-sand laminae, and oolites.
|Comments||Kittatinny Supergroup (Lower Ordovician and Cambrian) (Drake and Lyttle, 1980)|
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.
Drake, Avery A. Jr.,Volkert, Richard, A., Monteverde, Donald H., Herman, Gregory C., Houghton,Hugh F., Parker, Ronald A., and Dalton, Richard F., 1996, Bedrock Geologic Map of Northern New Jersey: U.S. Geological Survey Miscellanenous Investigations Map I-2540-A, 4 cross sections, 2 sheets, size 56x40; 58x41, scale 1:100.000.
Clarke, J.M., and Schuchert, Charles, 1899, The nomenclature of the New York series of geological formations: Science, new series, v. 10, p. 874-878.
Drake, A.A., Jr., and Lyttle, P.T., 1980, Alleghanian thrust faults in the Kittatinny Valley, New Jersey, in Manspeizer, Warren, ed., Field studies of New Jersey geology and guide to field trips; 52nd annual meeting of the New York State Geological Association: Newark, N.J., Rutgers University Press, p. 92-114.
Sweet, W.C., and Bergstrom, S.M., 1986, Conodonts and biostratigraphic correlation: Annual Review of Earth and Planetary Science, v. 14, p. 85-112.
Drake, A.A., Jr., and Lyttle, P.T., 1985, Geologic map of the Blairstown quadrangle, Warren County, New Jersey: U.S. Geological Survey Geologic Quadrangle Map GQ-1585, scale 1:24,000.
Drake, A.A., Jr., Kastelic, R.L., Jr., and Lyttle, P.T., 1985, Geologic map of the eastern parts of the Belvidere and Portland Quadrangles, Warren County, New Jersey: U.S. Geological Survey Miscellaneous Investigations Series Map I-1530, scale 1:24,000.
Markewicz, F.J., and Dalton, Richard, 1977, Stratigraphy and applied geology of the lower Paleozoic carbonates in northwestern New Jersey, in Markewicz, F.J., Dalton, Richard, Spink, Walter, Metsger, Robert, and Lucey, Carol, Stratigraphy and applied geology of the lower Paleozoic carbonates in northwestern New Jersey, 42nd annual field conference of Pennsylvania Geologists, guidebook: Harrisburg, Pa., p. 1-37.
|Counties||Hunterdon - Morris - Sussex - Warren|