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Bedrock Geologic Map of the Stanhope Quadrangle Morris And

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Bedrock Geologic Map of the Stanhope Quadrangle Morris And DEPARTMENT OF ENVIRONMENTAL PROTECTION Prepared in cooperation with the BEDROCK GEOLOGIC MAP OF THE STANHOPE QUADRANGLE WATER RESOURCES MANAGEMENT U.S. GEOLOGICAL SURVEY MORRIS AND SUSSEX COUNTIES, NEW JERSEY NEW JERSEY GEOLOGICAL AND WATER SURVEY NATIONAL GEOLOGIC MAPPING PROGRAM OPEN FILE MAP OFM 124 (NEWTON WEST) (FRANKLIN) 74°45’ 42’30” (NEWTON EAST) 40’ 74°37’30” 41°00’ 41°00’ 75 _l 40 65 M 39 24 71 78 Yp 62 64 72 82 A _h 43 U M 41 58 D Ybh Yk Yps 35 44 Ybs 82 72 Ybh 60 _ 60 a 38 56 61 83 T Granite and related rocks of the Byram and Lake Hopatcong Intrusive Suites are widespread and O_bl L CORRELATION OF MAP UNITS REFERENCES CITED 70 70 67 79 U 24 81 61 Ym Ybh 80 abundant in the map area where they intrude rocks of the Losee Suite and supracrustal rocks. The A 49 66 DESCRIPTION OF MAP UNITS Barnett, S.G., III, 1970, Upper Cayugan and Helderbergian stratigraphy of southeastern New York and F Ya 64 82 Stanhope quadrangle is designated as the type section (location in the Highlands where the rocks are Ybh 76 56 70 Yfw Ya Green Pond Mountain Region northern New Jersey: Geological Society of America Bulletin, v. 81, p. 2375-2402. M 61 Ybs GREEN POND MOUNTAIN REGION best exposed) for both suites that together comprise the Vernon Supersuite (Volkert and Drake, 1998). 31 Ym Ybh Ya Baum, J.L., 1967, The Tranquility prospect, Sussex County, New Jersey: New Jersey Zinc Company, 54 78 Byram and Lake Hopatcong rocks form a complete differentiation series that includes monzonite and Dkec Kanouse Sandstone, Esopus Formation and Connelly Conglomerate, undivided (Lower Devo- 20 30 Yb unpublished inter-office correspondence on file in the office of the New Jersey Geological 22 17 Ybh 57 Ym 70 nian) 84 Ybs Dkec syenite, quartz monzonite and quartz syenite, granite, and alaskite. Granite of both suites yielded sim- 82 54 Ypg and Water Survey, Trenton, New Jersey, 14 p. 19 74 Ybs Ym 51 ilar U-Pb zircon ages of 1188 to 1182 Ma (Volkert and others, 2010). 49 Yk 53 57 74 Bayley, W.S., 1910, Iron mines and mining in New Jersey: New Jersey Geological Survey Bulletin 7, 59 Yp 79 60 72 Kanouse Sandstone (Kümmel, 1908) – Medium-gray, light-brown, and grayish-red, fine- to coarse- 43 80 70 74 Unconformity 39 46 Ylo Zd 512 p. T 26 D 80 The youngest high-grade crystalline rocks in the quadrangle are granite pegmatites that are un- grained, thin- to thick-bedded sandstone and pebble conglomerate. Basal conglomerate is interbedded S Ybs Ybh U _ 70 58 Bayley, W.S., Salisbury, R.D., and Kummel, H.B., 1914, Description of the Raritan quadrangle, New a U 45 Ylo deformed and have discordantly intruded most other Mesoproterozoic rocks as small, irregular bodies. with siltstone and contains well-sorted, subangular to subrounded, gray and white quartz pebbles less 49 Ybs Sbp R Ybs Yp Yfw 59 65 R than 0.4 in. long. Lower contact with Esopus Formation gradational. Unit is about 46 ft. thick. Jersey: U.S. Geological Survey Geologic Atlas Folio 191, 32 p. H 61 None of the pegmatites are large enough to be shown on the map. Elsewhere in the Highlands, un- Ym 67 T 32 Yk Boucot, A.J., 1959, Brachiopods of the Lower Devonian rocks at Highland Mills, New York: Journal of 42 deformed coarse-grained felsic intrusions and pegmatites yielded U-Pb thermal ionization mass spec- 65 46 44 63 Ybh LT Sl 47 Yps 57 Paleontology, v. 33, p. 727-769. U 54 troscopy (TIMS) zircon ages of 1004 to 987 Ma (Volkert and others, 2005), indicating they are latest Esopus Formation (Vanuxem, 1842; Boucot, 1959) – Light- to dark-gray, laminated to thin-bedded 61 Yfw 47 A 69 Chadwick, H.G., 1908, Revision of “the New York series”: Science, new series, v. 28, p. 346-348. 71 U F 45 59 59 Mesoproterozoic to earliest Neoproterozoic in age. siltstone interbedded with dark-gray to black mudstone, dusky-blue sandstone and siltstone, and yel- Ya 55 Sg D Ybs Chapman, D.F., 1966, Petrology and structure of the Byram Cove synform, Precambrian Highlands, Ym lowish-gray, fossiliferous siltstone and sandstone. Lower contact is probably conformable with Connelly 45 86 40 Ya 35 73 50 42 New Jersey: New Brunswick, N. J., Rutgers University, unpublished M.S. thesis, 116 p. 80 Yfw 86 Conglomerate. Unit is about 180 ft. thick in the map area. Y Ya 69 46 Unconformity STRUCTURE T Clarke, J.M., and Schuchert, C., 1899, The nomenclature of the New York series of geological forma- I Paleozoic bedding L Yb I tions: Science, new series, v. 10, p. 874-878. 75 VALLEY AND RIDGE Connelly Conglomerate (Chadwick, 1908) – Grayish-orange weathering, very light gray to yellow- U 79 Ylo 64 Bedding in the Paleozoic rocks has a mean strike of N53°E ± 29°(fig. 1). Beds dip northwest and, Dalton, R.F., Volkert, R.A., Monteverde, D.H., Herman, G.C., and Canace, R.J., 2014, Bedrock geolog- 68 Ybh 51 60 ish-gray, thin-bedded quartz-pebble conglomerate. Quartz pebbles are subrounded to well rounded, NQ 40 88 less commonly, southeast, although in the tectonic lens along Kennedys-East fault they are overturned ic map of the Hamburg quadrangle, Sussex County, New Jersey: New Jersey Geological and A 67 _bl well sorted, and as much as 0.8 in. long. Unit is about 36 ft. thick. Ym 54 Ya O R 66 75 58 and dip moderately to steeply southeast. The dip of all beds ranges from 21° to 87° and averages Water Survey Geologic Map Series GMS 14-3, scale 1:24,000. T Ylo 68 48°. Dames and Moore, 1981, Preliminary engineering analyses, dam, and dike facilities, proposed Hack- 50 67 Ybh M _a Sbp Berkshire Valley and Poxono Island Formations, undivided (Upper Silurian) 59 73 Ybs Ymr 56 ettstown reservoir, Hackettstown, New Jersey: Unpublished consultants’ report for New Jer- 70 19 48 82 37 57 Yps M _l Proterozoic foliation Berkshire Valley Formation (Barnett, 1970) – Yellowish-gray weathering, medium-gray to pink- sey Department of Environmental Protection Division of Water Resources, unpaginated. On Ybh 64 25 42 Ybs 56 Ypd file in the office of the New Jersey Geological and Water Survey, Trenton, New Jersey. 61 41 ish-gray, very thin to thin-bedded fossiliferous limestone interbedded with gray to greenish-gray calcar- 60 51 Ybs 59 Ypg Crystallization foliation (the parallel alignment of mineral grains) is a penetrative metamorphic 55 44 T 50 _ Darton, N.H., 1894, Geologic relations from Green Pond, New Jersey, to Skunnemunk Mountain, New 51 h fabric formed as a result of directed compressional stresses during high-grade metamorphism that eous siltstone and silty dolomite, medium-gray to light-gray dolomite conglomerate, and grayish-black 45 54 50 UL 59 T 80 Ya A 30 Yb 84 York: Geological Society of America Bulletin, v. 5, p. 367-394. 55 59 60 34 F 49 78 deformed Mesoproterozoic rocks during the Grenvillian Orogeny. The strike of crystallization foliation is thinly laminated shale. Lower contact is conformable with Poxono Island Formation. Unit ranges in T Ybs AS Ypg M Yp 20 Ybh L 78 E thickness from 90 to 125 ft. Drake, A.A., Jr., 1984, The Reading Prong of New Jersey and eastern Pennsylvania - An appraisal U Unconformity fairly uniform throughout most of the map area, but varies somewhat locally because of folding of the 46 32 24 80 of rock relations and chemistry of a major Proterozoic terrane in the Appalachians, in Bar- A 67 30 31 83 51 F Yp 78 rocks. The mean strike of foliation is N32°E ± 4° (fig. 2). Foliation dips southeast and, less commonly, Ym 55 58 Ya Ya 44 76 86 NEW JERSEY HIGHLANDS tholomew, M.J., ed., The Grenville event in the Appalachians and related topics: Geological 52 Ylo Ya northwest between 9° to 90° and averages 56°. Locally, in the hinge areas of major folds, foliations Poxono Island Formation (White, 1882; Barnett, 1970) – Very thin to medium-bedded sequence Ya Yk 55 Society of America Special Paper 194, p. 75-109. Ybh Ya 70 strike northwest and dip gently to moderately northeast. of medium-gray, greenish-gray, or yellowish-gray, mud-cracked dolomite; light-green, pitted, medi- Ybs Ybh _ 14 82 81 Zd Drake, A.A., Jr., Aleinikoff, J.N., and Volkert, R.A., 1991, The Byram Intrusive Suite of the Reading 54 Ybh 60 D l 60 um-grained calcareous sandstone, siltstone, and edgewise conglomerate containing gray dolomite; 73 59 49 55 Prong - Age and tectonic environment, in Drake, A.A., Jr., ed., Contributions to New Jersey 65 75 PON 49 Yb 84 Folds and quartz-pebble conglomerate containing angular to subangular pebbles as much as 0.8 in. long. 59 35 Yfw 55 Zd 50 Geology: U.S. Geological Survey Bulletin 1952, p. D1-D14. Ya 70 87 75 58 Ybs 45 83 INTRUSIVE CONTACTS Interbedded grayish-green shales at lower contact are transitional into underlying Longwood Shale. 70 66 70 _l Yps Folds in the Paleozoic rocks postdate the development of bedding and they were formed during Drake, A.A., Jr., Kastelic, R.L., Jr., and Lyttle, P.T., 1985, Geologic map of the eastern parts of the 15 Ybh 14 Ya 32 70 Unit ranges in thickness from 160 to 275 ft. 61 70 47 Yp 26 78 Vernon Supersuite 76 45 Ym 64 the Taconian and (or) Alleghanian orogenies at about 450 Ma and 250 Ma, respectively.
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