S109 47 60 Qal Qwcp 7000 FEET 1000 1000 0 2000 3000 4000 5000 6000 .5 1 KILOMETER 1 0 SCALE 1:24 000 1/2 1 0 1 MILE MN N 1981 MAGNETIC NORTH DECLINATION AT CENTER OF SHEET IS 11.5 o LOCATION IN NEW JERSEY 74 o 30' 40 o 22'30" 32'30" 35' 74 o 37'30" 40 o 22'30" 20' 17'30" 40 o 15' 74 o 37'30" 35' 32'30" 74 o 30' 40 o 15' 17'30" 20' Qe Qws Qal Qal Tp Tp Qws Qtl Qtl Qcl Qcl Qtl Qtl Qtl Qtl Qcal Qws Qws Qws Tp Tp 28-4064 28-2-880 28-2-880 28-2-887 28-2-888 HT-4 HT-5 27-3321 28-19204 28-1925 28-927 28-14867 28-8600 28-20103 28-20102 28-4346 28-6103 28-4343 28-2168 15 60 30 22 22 26 74 >51 68 40 >50 48 13 30 >70 40 43 130 120 0 20 40 60 80 100 28-3282 28-2176 28-2344 28-8348 28-10010 28-4965 28-5203 28-12271 28-13037 28-21224 W41 W44 W7 WI W42 W43 WV W14 WD W13 WP W12 W11 W10 WC W8 W15 WO W46 WE WN WK W45 W39 WVI WM W47 WL W17 W49 W36 WQ W19 W28 WG WIV W30 W29 W27 WH W20 W40 WJ W31 WVII WIRL WIII W9 W48 W37 W18 W38 WF W35 W34 W33 W32 33 35 28 34 38 44 28 36 43 44 37 50 53 69 70 70 95 >100 74 63 >38 49 68 68 79 79 47 >35 48 43 47 38 40 70 44 58 64 32 58 39 50 55 54 78 59 70 75 67 >20 79 79 45 44 45 47 >46 45 64 63 35 W3 W1 WA W2 W6 WI WB W4 W5 W23 W21 W22 WII W24 53 62 59 52 54 64 44 50 >25 66 65 65 >42 51 Qal 50 28-6210 28-6056 28-12046 28-6818 28-7792 28-6559 28-7151 28-8784 28-1985 52 52 >77 93 55 >72 >71 30 30 Qal Tp Qs Qal Qws Qtl Qtl Qtl Qal Qtl Qtl Tp Tp Qal Qal Qal Tp Tp Tp Tp Tp Qal Tp Tp Tp Tp 28-3746 28-9289 28-11851 28-14378 28-18561 28-16833 28-13073 28-11754 28-15319 28-13746 S-14H 28-13068 28-13450 28-13083 28-10217 28-12035 28-12359 28-12574 28-2986 28-12739 28-12025 28-4910 28-2440 28-690 28-7187 28-2094 28-890 28-12694 28-10460 28-1423 28-8881 28-8008 28-8670 53 30 >65 50 37 36 32 26 19 34 42 29 28 42 38 38 42 38 76 40 32 35 112 >60 >90 >105 >100 >52 75 23 33 47 45 43 23-787 80 53 63 85 60 43 28-11477 28-5019 28-6086 28-4951 28-6143 28-7021 28-4330 28-7120 28-12284 28-5955 28-6950 77 72 63 70 93 78 57 80 75 75 28-7007 50 10 28-6226 28-5015 28-1989 28-2374 28-1986 28-3460 28-5351 28-5061 20 28 28 55 24 24 20- 30 28-11075 28-11716 28-9985 28-21338 28-13825 28-4941 28-4961 28-5501 28-7523 Qtl Qwcp Qal Qal Qtl Qtl Tp Qtl Qwcp 28 28 35 >76 74 83 68 85 >92 28-8863 28-18045 28-7839 28-6237 25 79 75 65 23-791 28-12136 28-9835 28-9795 S102 S101 S103 S104 S105 28-11501 28-1430 28-13047 28-18517 28-15572 28-13976 28-15267 S106 S107 S108 S109 28-971 28-6654 28-1396 S20A S21A 28-10919 70 >65 68 86 80 78 57 88 74 21 70 50 60 60 27 85 21 24 28 90 S19A 23-8 23-778 28-13514 S18A S100 S99 S17A 28-6186 S16A 28-3371 S15A 28-4876 28-9328 28-5199 28-20915 28-18282 S22A 36 38 8 45 38 42 65 50 71 82 77 >75 7 19 25 19 29 21 21 15 28-5781 28-3483 28-3535 28-3067 28-1364 28-5784 28-5302 20 50 107 52 51 73 32 S110 S111 S112 S113 S114 S115 S116 S117 S26A 28-6117 S25A S24A S23A 28-13701 28-7061 28-12476 28-15179 21-175 21-25 8 24 33 34 38 35 40 68 60 67 63 24 32 22 22 30 11 12 12 10 28-6861 28-5993 28-10999 28-4873 28-1559 35 23 51 30 Qwcp 21-17 <32 Qtl Qwcp Qwcp Qwcp Qtl Qtl 28-11392 28-4232 28-13255 28-12437 38 31 27 42 55 28-14975 23-779 10 Tp Qal Qtl Qwcp Qwcp Qtl Qtl Qal 28-4589 28-1378 28-12003 28-9457 S13A S14A S12A S11A S10A S9A 28-18942 28-18560 S8A 28-6944 30 29 14 15 14 21 41 30 40 23 43 50 27 Tp 22 x S95 S94 S93 S92 28-922 S91 S90 S89 S88 S87 S86 S85 S84 S83 S82 S81 S80 28-10532 28-10991 28-16723 28-9641 28-13138 23-291 28-13934 28-12434 28-14150 S7A 43 43 31 53 48 43 45 53 35 30 12 18 16 27 16 7 24 22 30 13 20 40 28-14787 18 37 37 33 15 13 x 83 86 95 50 40 19 SC96 28-4716 SC98 SC97 43 80 60 40 20 20 20 0 20 20 40 60 20 0 0 20 40 60 60 60 80 60 80 60 60 60 40 20 0 0 20 0 0 20 40 0 20 40 60 80 0 20 40 60 80 60 40 20 20 0 0 20 40 60 20 0 20 20 40 40 60 60 80 80 100 28-2487 28-5649 21-241 28-1265 28-1395 28-2477 28-252 28-1515 28-4352 28-1498 28-5079 28-4967 28-1455 28-5780 28-7337 >66 >75 80 >69 78 71 >71 >60 >72 >70 >72 72 72 >80 >91 59 28-1499 28-4689 28-4979 28-8221 28-7768 28-13193 S120 S119 S118 S121 S122 S123 S124 S125 S126 S127 28-1274 74 >82 59 20 44 27 37 37 41 9 61 85 >82 60 58 65 21-152 32 18 S128 S129 S130 S131 S132 28-4875 20 19 14 19 0 31 Tp Tp Qal Tp Qal Tp Qal Tp Qtl Tp Tp Qtl Qal Tp Tp Tp Qtl Qtl Qal Tp Qwcp Qtl Qwcp Qal Qtl Tp Qwcp Qwcp Qtl Tp Tp Tp Qtl Qal Qwcp Tpg Tp Tpg Qtl Tp Tp Tp Tp Tp Qwcp Qtl Qtl Qtl Tp Tp Qal Qal Qal Qal Tp Tp Tp CONTOUR INTERVAL 20 FEET NATIONAL GEODETIC VERTICAL DATUM OF 1929 SURFICIAL GEOLOGY OF THE HIGHTSTOWN QUADRANGLE, MIDDLESEX AND MERCER COUNTIES, NEW JERSEY by Scott D. Stanford 2002 MAP UNITS Age of unit indicated in parentheses. For units spanning more than one period, principal age is listed first. Order of map units in list does not necessarly indicate chronologic sequence. ARTIFICIAL FILL--Sand, silt, clay, gravel; brown, gray, yellowish brown; may include demolition debris (concrete, brick, asphalt, glass) and trash. As much as 20 feet thick. Many small areas of fill in urban areas are not shown. ALLUVIUM (Holocene and late Pleistocene)--Sand, silt, clay, peat; yellowish brown, dark brown, gray; and pebble gravel. Abundant organic matter. Sand is chiefly quartz, with some glauconite and mica. Gravel is quartz and quartzite with minor ironstone. As much as 20 feet thick. Deposited in floodplains, channels, and groundwater seepage areas. SWAMP AND MARSH DEPOSITS (Holocene and late Pleistocene)--Peat and organic silt, sand, and clay; dark brown to black. As much as 10 feet thick. COLLUVIUM AND ALLUVIUM (Holocene and late Pleistocene)--Interbedded alluvium and colluvium in headwater valleys. As much as 10 feet thick. EOLIAN DEPOSITS (late Pleistocene and Holocene)--Fine sand and silt, very pale brown to reddish yellow. Sand is chiefly quartz with minor shale fragments, glauconite, and mica in places. As much as 6 feet thick. Shown as an overprint pattern where generally continuous but less than 3 feet thick. LOWER TERRACE DEPOSITS (late Pleistocene)--Sand and minor silt; yellow, yellowish brown, reddish yellow; and pebble gravel. Sand is chiefly quartz with some glauconite and mica. Gravel is quartz and quartzite with minor ironstone. Adjacent to Carnegie Lake, gravel includes some gray siltstone and minor red siltstone and gray gneiss. As much as 30 feet thick. Forms stream terraces with surfaces 5 to 20 feet above the modern floodplain. LOWER COLLUVIUM (late Pleistocene)--Sand, silt, minor clay; yellow, yellowish brown, reddish yellow, light gray; some quartz and ironstone pebbles. As much as 10 feet thick. Forms aprons graded to lower terraces or the modern floodplain, UPPER TERRACE DEPOSITS (middle Pleistocene)--Sand and minor silt; yellow, reddish yellow; and pebble gravel. Sand is chiefly quartz; glauconite and mica are less abundant than in the lower terrace deposits and alluvium. Gravel is quartz, quartzite, and minor ironstone. As much as 20 feet thick. Forms stream terraces with surfaces 20 to 30 feet above the modern floodplain. PENSAUKEN FORMATION (Pliocene)--Sand, minor silt and clay; yellow to reddish yellow; pebble gravel and minor cobble gravel, particularly at the base of the deposit. Sand is chiefly quartz with some weathered feldspar and minor glauconite and mica. Gravel is chiefly quartz and quartzite with some chert and ironstone, and minor amounts of deeply weathered sandstone, mudstone, diabase, and gneiss. Locally iron-cemented. Locally includes beds of dark-gray to reddish-yellow clay as much as 6 feet thick. As much as 140 feet thick. In erosional remnants of a dissected river plain. PENSAUKEN FORMATION, GLAUCONITIC PHASE (Pliocene)--Sand, minor silt and clay; reddish yellow to yellowish brown; and pebble gravel. Sand is chiefly quartz with some glauconite and mica and minor feldspar. Gravel is chiefly quartz and quartzite with some chert. As much as 20 feet thick. A phase of the Pensauken Formation deposited by tributaries from the Coastal Plain. WEATHERED COASTAL PLAIN FORMATIONS--Exposed sand and clay of Coastal Plain bedrock formations. May be overlain by thin, patchy alluvium and colluvium. Quartz, chert, and ironstone pebbles left from erosion of surficial deposits may be present on the surface and in the upper several feet of the formation. WEATHERED SHALE AND SANDSTONE--Silty clay to sandy silt; reddish brown, pale red, reddish yellow, gray; with few to some angular pebble- and cobble-sized fragments of siltstone and sandstone, and a few quartz, chert, and ironstone pebbles left from erosion of surficial deposits. As much as 30 feet thick. MAP SYMBOLS Contact--Contacts of alluvium and swamp deposits are well-defined by landforms and are drawn from 1:12,000 scale aerial stereophotos. Contacts of other units are approximately located based on both landforms and field observation points. Material observed in hand-auger hole, exposure, or excavation. Shallow topographic basin--Of probable periglacial origin. Well or boring--Upper number (italicized) is identifier, lower number is thickness of surficial material, in feet. Identifiers of the form '28-xxxx' are N. J. Department of Environmental Protection well permit numbers. Identifiers of the form '23-xxx' and '21-xxx' are from Gronberg, J. M., Birkelo, B. A., and Pucci, A. A., 1989, Selected borehole geophysical logs and drillers' logs, northern Coastal Plain of New Jersey: U. S. Geological Survey Open-File Report 87-243, 133 p. Identifiers of the form 'Sxx' and 'Wxx' are borings made for a proposed ship canal in the 1930s, and for sand-resource exploration, respectively. Logs of these borings are on file at the N.J. Geological Survey. Identifiers of the form 'HT4' are borings made by J. P. Owens and D. S. Powars of the U. S. Geological Survey in 1991 as part of a regional cooperative geologic mapping project with the N. J. Geological Survey. Elevation of base of Pensauken Formation--In feet above sea level. Contour interval 20 feet. Dashed where eroded. Paleocurrent measurement--Arrow indicates paleoflow direction, "x" indicates location of measurement. Measurements made on tabular, planar cross beds. Thin eolian deposits--Veneer of fine sand and silt, generally less than 3 feet thick. Bedrock strike ridge--Low ridge parallel to strike of bedrock. Drawn from airphotos. x MONMOUTH JUNCTION PRINCETON ALLENTOWN JAMESBURG Base from U. S. Geological Survey, 1954 Photorevised 1981 Geology mapped 1991 Qal Qs Qcal Qe Qtl Qcl Tp Tpg Qwcp Qws DEPARTMENT OF ENVIRONMENTAL PROTECTION NEW JERSEY GEOLOGICAL SURVEY SURFICIAL GEOLOGY OF THE HIGHTSTOWN QUADRANGLE MIDDLESEX AND MERCER COUNTIES, NEW JERSEY OPEN-FILE MAP OFM 44 Qal Tp Qtl Qcl Qcl Qal Tp Qal sandstone and shale bedrock Qal Qal Tp Tp Qal Coastal Plain Formations 200 100 0 -100 200 100 0 -100 ELEVATION (feet) VERTICAL EXAGGERATION 20X MILLSTONE RIVER HEATHCOTE BROOK 28-2-880 28-2-880 HT4 28-1971 A 28-5203 U. S. ROUTE 1 AMTRAK DEVILS BROOK SHALLOW BROOK W42 WV WD W13 WP W12 W11 28-6210 28-6559 S93 S12A CEDAR BROOK 28-1378 28-6944 ELEVATION (feet) A' A A' Qal Qtl Qe Qal Qtu Qtu Qtu Qwcp Qwcp