Jutland Klippe Sequence Unit B

Jutland Klippe Sequence Unit B of Perissoratis and others (1979) - Heterogeneous sequence of interbedded red, green, tan and gray shale; interlaminated dolomite and shale; interbedded fine-grained graywacke siltstone and beds or lenses of sandstone; light-gray to pale-pinkish-gray quartzite; and interbedded fine-grained, thin-bedded limestone and red and green shale. Limestone locally resembles an intraformational conglomerate because it is disrupted, boudinaged, and surrounded by shale beds. Lower contact gradational and within interbedded sequence of thin- to medium-bedded sandstone, siltstone, and limestone. Perissoratis and others (1979) placed this contact at boundary between graptolite faunas Isograptus caduceus and Paraglossograptus etheridgei of Berry (1968). The youngest graptolites occur within Climacograptus bicornis zone of Berry (1968). Some shale beds contain conodonts (Ethington and others, 1958; Karklins and Repetski, 1989) and brachiopod fragments. Carbonate and pelitic rocks locally contain conodonts of Prioniodus triangularis to Pygodus anserinus faunas of North Atlantic Realm. Thickness varies due to structural complexity, but may be about 460 to 550 m (1,500-1,800 ft).
State New Jersey
Name Jutland Klippe Sequence Unit B
Geologic age Middle Ordovician
Lithologic constituents
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Carbonate > Dolostone (Bed)
Metamorphic > Metasedimentary > Metaclastic > Quartzite
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Clastic > Siltstone (Bed)siltstone and graywacke siltstone
Sedimentary > Clastic > Sandstone (Bed)

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.


Perissoratis, Constantine, Brock, P.W.G., Bruckner, H.K., Drake, A.A., Jr., and Berry, W.B.N., 1979, The Taconides of western New Jersey; New evidence from the Jutland klippe; summary: Geological Society of America Bulletin, p. II, v. 90, no. 1, p. II154-II177.

Berry, W.B.N., 1968, Ordovician peleogeography of New England and adjacent areas based on graptolites, in Zen,E-an, White, W.S., Hadley, J.B., and Thompson, J.B., Jr., eds., Studies in Appalachian Geology, northern and maritime: New York, Interscience Publishers, Chap. 2, p. 23-35.

Ethington, R.L., Furnish, W.M., and Markewicz, F.J., 1958, Ordovician conodonts in New Jersey: Journal of Paleontology, v. 32, no. 4, p. 763-765.

Karklins, O.L., and Repetski, J.E., 1989, Distribution of selected Ordovician conodont faunas in northern New Jersey: U.S. Geological Survey Miscellaneous Field Studies Map MF-2066, scale 1:185,000.


NGMDB product
Counties Hunterdon - Morris - Somerset