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Warren Quarry, Phillipsburg, Warren Co., New Jersey, USA

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Latitude & Longitude (WGS84): 40° 41' North , 75° 11' West
Latitude & Longitude (decimal): 40.68333,-75.18333

Ref.: The Iron Mines of New Jersey (1910), Bayley: 45; NJ State Geol. Annual Rpt. (1868): 394. A stone quarry in blue (Kittatinny) limestone.

Mineral List

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Early Ordovician - Furongian
470 - 497 Ma
Allentown Dolomite

Age: Paleozoic (470 - 497 Ma)

Stratigraphic Name: Allentown Dolomite

Description: (Wherry, 1909) - Very thin to very thick bedded dolomite containing minor orthoquartzite and shale. Upper part is medium-light- to medium-dark-gray, fine- to medium-grained, locally coarse-grained, medium- to very thick bedded dolomite. Floating quartz sand grains and two sequences of medium-light- to very light gray, thin-bedded quartzite and discontinuous, dark-gray chert lenses occur directly below upper contact. Rhythmically bedded lower dolomite beds alternate between light and dark gray weathering, medium and very light gray, fine and medium grained, and thin and medium bedded, which are interbedded with shaly dolomite. Ripple marks, crossbeds, edgewise conglomerate, mud cracks, oolites, and algal stromatolites occur throughout unit, but more typically in lower part. Shaly dolomite increases downward toward lower conformable contact with the Leithsville Formation. Oldest beds contain trilobite fauna of early Late Cambrian age; younger beds contain latest Cambrian fauna (Howell, 1945; Howell and others, 1950). Thickness about 580 m (1,900 ft).

Comments: Kittatinny Supergroup (Lower Ordovician and Cambrian) (Drake and Lyttle, 1980)

Lithology: Major:{dolostone}, Minor:{shale}, Incidental:{chert, quartzite}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

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