Table T1. Core descriptions, Medford borehole, Leg 174AXS.
Run
number
Date
(2007)
Cored interval
(ft)
Run length
(ft)
Recovered
(ft)
Recovered
(%)
Lithology
Formation
Color
1 24 Apr 1.5–6 4.5 2.90 64 Glauconitic clay Manasquan 5Y 4/2 Olive gray
2 24 Apr 6–10 4 1.10 28 Glauconitic clay Manasquan/Vincentown contact 5Y 7/2 Light gray
3 24 Apr 10–15 5 4.5 90 Glauconitic sand to clay Vincentown 2.5Y 2.5/1 Black
4 24 Apr 15–20 5 4 80 Glauconitic clay Vincentown 2.5Y 2.5/1 Black
5 25 Apr 20–30 10 7.6 76 Glauconitic sand to clay Vincentown 2.5Y 4/1 Dark gray
6 25 Apr 30–32.5 2.5 1.6 64 Clayey glauconitic quartz sand Vincentown 2.5Y 4/1 Dark gray
7 25 Apr 32.5–34 1.5 1.8 120 Calcarenite Vincentown 5GY 6/1 Greenish gray
8 25 Apr 34–40 6 6.50 108 Calcarenite and glauconitic clayey sand Vincentown 5GY 4/1 Dark greenish gray
9 25 Apr 40–47 7 5.7 81 Clayey glauconitic quartz sand; glauconite sand Vincentown 5GY 4/1 Dark greenish gray
10 25 Apr 47–55 8 1.6 20 Clayey glauconitic quartz sand with shells over glauconite quartz sand Vincentown/Hornerstown contact 5B 4/1 Dark bluish gray
11 25 Apr 55–56 1 0.6 60 Glauconite sand Hornerstown 2.5Y 2.5/1 Black
12 25 Apr 56–60 4 2.4 60 Slightly clayey glauconite sand Hornerstown 5G 4/2 Greenish gray
13 25 Apr 60–70 10 2.3 23 Interbedded clay and glauconite sand Hornerstown/Navesink contact 5G 4/2 Greenish gray
14 25 Apr 70–75 5 2.5 50 Glauconitic sand to clay Navesink 2.5Y 2.5/1 Black;Clay: 2.5YR 3/1 Dark reddish gray
15 25 Apr 75–80 5 2.5 50 Clayey glauconitic sand Navesink 2.5Y 2.5/1 Black
16 25 Apr 80–85 5 5 100 Clayey glauconitic sand Navesink 10YR 3/1 Very dark gray
17 25 Apr 85–90 5 5.2 104 Shelly clayey glauconite sand Navesink 10YR 3/1 Very dark gray
18 25 Apr 90–100 10 9.2 92 Glauconite sand over dirty shelly sand Navesink 2.5YR 4/1 Dark reddish gray
19 26 Apr 100–107 7 6.5 93 Glauconitic medium very coarse sand Navesink/Mount Laurel contact 5Y 5/2 Olive gray
20 26 Apr 107–113 6 3.9 65 Shelly glauconitic medium to very coarse sand Mount Laurel 5Y 4/2 Olive gray
21 26 Apr 113–120 7 6.2 89 Shelly glauconitic medium to very coarse sand Mount Laurel 5B 2.5/1 Bluish black
22 26 Apr 120–130 10.0 2.7 27 Shelly glauconitic medium to very coarse sand Mount Laurel 5GY 2.5/1 Greenish black
23 26 Apr 130–140 10 4.1 41 Shelly glauconitic medium to very coarse sand Mount Laurel 5GY 2.5/1 Greenish black
24 26 Apr 140–150 10 5.7 57 Slightly glauconitic fine to medium quartz sand Mount Laurel 10GY 3/1 Very dark greenish gray
25 26 Apr 150–160 10 8.5 85 Laminated silty fine sand and silt, trace of shells Mount Laurel 5G 3/1 Very dark greenish gray
26 26 Apr 160–170 10 2.9 29 Glauconitic fine to medium sand with some clay laminae Mount Laurel 5G 3/1 Very dark greenish gray
27 26 Apr 170–180 10 8.3 83 Interbedded silty very fine sand and silty clay; glauconitic Mount Laurel/Wenonah contact 5G 3/1 Very dark greenish gray
28 26 Apr 180–190 10 9.7 97 Muddy very fine sands with silty clay Wenonah 10Y 2.5/1 Greenish black
29 26 Apr 190–200 10 8.6 86 Muddy very fine sands with silty clay Wenonah 10Y 3/1 Very dark greenish gray
30 26 Apr 200–210 10 9.6 96 Glauconitic very fine sandy clayey silt Wenonah 10Y 3/1 Very dark greenish gray
31 27 Apr 210–220 10 10 100 Glauconitic very fine sandy clayey silt Wenonah/Marshalltown contact 10Y 3/1 Very dark greenish gray
32 27 Apr 220–223.5 3.5 2.7 77 Glauconitic very fine sandy clayey silt Marshalltown 10Y 3/1 Very dark greenish gray
33 27 Apr 223.5–225 1.5 1.1 73 Glauconitic very fine sandy clayey silt; sandstone Marshalltown/Englishtown contact 10Y 3/1 Very dark greenish gray
34 27 Apr 225–230 5 1.6 32 Sandstone Upper Englishtown 5BG 5/1 Greenish gray
35 27 Apr 230–240 10 7.5 75 Interbedded quartz sand and clay Upper Englishtown 5BG 5/1 Greenish gray
36 27 Apr 240–250 10 8.9 89 Clayey silt Upper Englishtown N3/ Very dark gray
37 27 Apr 250–260 10 10.25 103 Clayey silt Upper Englishtown N3/ Very dark gray
38 27 Apr 260–270 10 7.95 80 Silty clay Upper Englishtown N3/ Very dark gray
39 28 Apr 270–280 10 7.4 74 Clayey silt Upper Englishtown N3/ Very dark gray
40 28 Apr 280–290 10 9.7 97 Clayey silt to silty clay Upper Englishtown N3/ Very dark gray
41 28 Apr 290–300 10 10.3 103 Clayey silt to silty clay Upper Englishtown 2.5Y 3/2 Very dark grayish brown
42 28 Apr 300–310 10 6.7 67 Silty clay Upper Englishtown 2.5Y 3/2 Very dark grayish brown
43 28 Apr 310–320 10 10 100 Silty clay Upper Englishtown N3/ Very dark gray
44 28 Apr 320–330 10 9.5 95 Clayey silt to glauconitic silty clay Upper Englishtown/Lower Englishtown contact 2.5Y 3/1 Very dark gray to 2.5Y 3/2 Very dark grayish brown
45 28 Apr 330–333 3 3.9 130 Fine to medium quartz sand Lower Englishtown 5Y 7/2 Light gray
46 28 Apr 333–340 7 7 100 Fine to medium quartz sand Lower Englishtown 5Y 4/1 Dark gray
47 28 Apr 340–350 10 3.6 36 Very fine sand with clay and silt Lower Englishtown 5Y 4/1 Dark gray
48 28 Apr 350–360 10 2 20 Fine sand with clay and silt Lower Englishtown 2.5YR 3/2 Very dark grayish brown
49 29 Apr 360–362.45 2.45 2.45 100 Fine sand with clay and silt; increasing glauconite Lower Englishtown N 2.5/ Black
50 29 Apr 362.45–373 10.55 9.4 89 Fine sand with glauconite; clayey silt Lower Englishtown/Woodbury contact N 2.5/ Black
51 29 Apr 373–380 7 8.2 117 Glauconitic clay and clayey glauconite sand Woodbury/Merchantville contact N 2.5/ Black
52 29 Apr 380–390 10 10.1 101 Clayey glauconite sand Merchantville N 2.5/ Black
53 29 Apr 390–400 10 10.1 101 Clayey glauconite sand; silt Merchantville N 2.5/ Black
54 29 Apr 400–405 5 5.1 102 Clayey glauconite sand Merchantville N 2.5/ Black
55 29 Apr 405–410 5 5.3 106 Glauconitic sand to clay Merchantville N 2.5/ Black
56 29 Apr 410–420 10 6.1 61 Glauconitic sand to clay Merchantville N 2.5/ Black
57 29 Apr 420–430 10 7 70 Glauconitic sand to clay Merchantville N 2.5/ Black
58 29 Apr 430–435 5 8.2 164 Glauconitic sand to clay Merchantville/?Cheesequake contact N 2.5/ Black
59 29 Apr 435–440 5 5.3 106 Glauconitic sand to clay ?Cheesequake/Magothy contact N 2.5/ Black
60 30 Apr 440–448.5 8.5 5.5 65 Clay Magothy 10YR 6/1 Gray
61 30 Apr 448.5–452.5 4 3.8 95 Medium to coarse sand Magothy 2.5Y 4/1 Dark gray
62 30 Apr 452.5–460 7.5 6.5 87 Medium to coarse sand Magothy 5Y 4/1 Dark gray
63 30 Apr 460–467 7 5.6 80 Medium to coarse sand Magothy 5Y 4/1 Dark gray
64 30 Apr 467–467.5 9.5 3.9 41 Medium sand to clay Magothy 10YR 6/1 Gray
65 30 Apr 467.5–480 3.5 3.9 111 Clayey silt to silty clay Magothy 2.5Y 6/1 Gray
66 30 Apr 480–490 10 8.4 84 Clay to fine quartz sand Magothy 2.5YR 4/1 Dark gray
67 30 Apr 490–500 10 5.9 59 Fine sand with lignitic laminae Magothy 5Y 5/1 Gray
68 30 Apr 500–510 10 6.2 62 Coarse sand and granules Magothy 5Y 5/ Gray
69 1 May 510–520 10 3.25 33 Medium to coarse sand over sandy gravel Magothy N5/ Gray
70 1 May 520–526 6 5.8 97 Clay, clay, and silt Magothy N4/ Dark gray to N6/ Gray
71 1 May 526–528.5 2.5 2 80 Very fine very silty clayey sand; sandstone Magothy N5/ Gray
72 1 May 528.5–539 10.5 9.9 94 Very fine very silty clayey sand; sandstone; medium sand; very fine sand Magothy N5/ Gray
73 1 May 539–549.5 10.5 10.35 99 Fine to medium lignitic sand; sandstone Magothy N5/ Gray
74 1 May 549.5–560 10.5 9.45 90 Fine to medium lignitic sand; sandstone Magothy N5/ Gray and N6/ Gray
75 1 May 560–570 10 3.4 34 Silty sand and silty clay Magothy N4/ Dark gray to N3/ Very dark gray
76 2 May 570–575 5 4.2 84 Laminated clay with lignite Magothy/Raritan contact 10YR 4/1 Dark gray
77 2 May 575–580 5 4.7 94 Laminated clay with lignite Raritan 10YR 5/2 Grayish brown
78 2 May 580–585 5 3 60 Laminated clay with lignite Raritan 10YR 3/2 Grayish brown
79 2 May 585–590 5 3 60 Laminated clay Raritan 10YR 4/1 Dark gray
80 2 May 590–600 10 2.8 28 Laminated clay Raritan 10YR 5/2 Grayish brown
81 2 May 600–610 10 4.6 46 Clayey silty very fine sand over silty clay over medium sand Raritan 10YR 4/1 Dark gray
82 2 May 610–620 10 7.5 75 Clay, clay, and silt Raritan 10YR 3/1 Very dark gray
83 3 May 620–627 7 7 100 Laminated clay Raritan 10YR 4/2 Dark grayish brown
84 3 May 627–635 8 5.9 74 Lignitic clayey silt to clay Raritan 10YR 4/2 Dark grayish brown
85 3 May 635–640 5 4.9 98 Silty clay Raritan 10YR 6/1 Gray to10YR 4/2 Dark grayish brown
86 3 May 640–650 10 8.4 84 Quartz sand from fine to medium Raritan 10YR 6/1 Gray
87 3 May 650–660 10 3.3 33 Medium to coarse sand Raritan 10YR 5/1 Gray
88 3 May 660–670 10 9.2 92 Quartz sand from fine to medium Raritan 10YR 5/1 Gray
89 3 May 670–675 5 4 80 Quartz sand from fine to medium Raritan 10YR 5/1 Gray
90 4 May 675–680 5 3.85 77 Interbedded quartz sand and clay; muddy sand at bottom Raritan 10Y 3/1 Very dark greenish grayto 10Y 5/1 Greenish gray
91 4 May 680–688.5 8.5 2 24 Muddy sand with granules, mud clasts, siderite; mottled silt at bottom Raritan/Potomac contact 2.5Y 5/2 Grayish brown
92 4 May 688.5–690 1.5 3.7 247 Silt, mottled, clayey Potomac N 6/1 Gray to 10R 4/6 Red
93 4 May 690–695 5 5 100 Silt, mottled, clayey Potomac 10Y 5/1 Greenish gray, 10R 4/2 Weak red, 5Y 5/4 Olive
94 4 May 695–700 5 5 100 Clay, very silty, mottled Potomac 10Y 5/1 Greenish gray,N4/Dark gray, N6/Gray
95 4 May 700–710 10 10.2 102 Clayey silt; clay; sand Potomac 5Y 4/2 Olive gray
96 4 May 710–720 10 4.7 47 Sand; sand with clay Potomac 5Y 4/1 Dark gray
97 5 May 720–730 10 4 40 Coarse to very coarse sand; fine to medium sand Potomac 5Y 4/1 Dark gray
98 5 May 730–740 10 3.6 36 Interbedded clay and silty fine to medium sand with some lignite Potomac N7/ Light gray
99 5 May 740–750 10 10.5 105 Clayey silt with very fine sand Potomac 10R 7/1 Light gray to 10R 4/6 Red
100 5 May 750–760 10 5.5 55 Interbedded silty fine to medium sand and laminated silty clay Potomac 7.5YR 4/1 Dark gray
101 5 May 760–770 10 5.2 52 Laminated silty fine to medium sand with thin clay beds Potomac 5YR 6/1 Gray
102 5 May 770–780 10 10 100 Sand, medium with lignite and rip-up clasts Potomac 6/N Gray
103 5 May 780–790 10 6.8 68 Medium to coarse sand Potomac 10Y 6/1 Gray
104 6 May 790–800 10 7.7 77 Clay Potomac 10R 4/8 Red
105 7 May 800–810 10 10 100 Clay Potomac N/4 Dark gray
106 7 May 810–820 10 6.8 68 Silty sand and silty clay Potomac N/6 Gray
107 7 May 820–830 10 5.05 51 Medium to coarse sand with lignite Potomac 2.5Y 5/2 Grayish brown
108 7 May 830–840 10 5.1 51 Medium to coarse sand with lignite Potomac 2.5Y 5/1 Gray
109 7 May 840–850 10 4.7 47 Silty sand and silty clay Potomac 2.5Y 5/1 Gray
110 7 May 850–859 9 10.45 116 Mottled clay Potomac 10YR 7/1 Light gray/ 2.5YR 4/6 Dark red
111 8 May 859–869.3 10.3 2 19 Mottled red clay Potomac 2.5YR 4/6 Red
112 8 May 869.3–879.3 10 2.4 24 Silty fine to medium sand with lignite Potomac 2.5Y 6/1 Gray; 2.5Y 4/1 Dark gray
113 8 May 879.3–890 10.7 3.8 36 Sand over clay Potomac 2.5Y 6/1 Gray; 2.5Y 4/1 Dark gray
114 9 May 890–900 10 4.15 42 Interbedded quartz sand and grayish clay Potomac 10Y 6/1 Gray
115 9 May 900–910 10 7.55 76 Mostly medium sand, some clay, some plant debris Potomac 10Y 6/1 Gray
116 9 May 910–920 10 8.4 84 Mostly sand, coarse, some granules Potomac 10Y 6/1 Gray
117 9 May 920–930 10 2.5 25 Mostly sand, very coarse to medium, thin clay Potomac 10Y 6/1 Gray
118 9 May 930–940 10 7.75 78 Mostly silty clay, some sand, clean to very muddy Potomac 10Y 6/1 Gray
119 10 May 940–944.5 4.5 3.2 71 Clean fine to medium sand with lignite, clay silt Potomac 10Y 4/1 Dark gray
120 10 May 944.5–950 5.5 5.2 95 Clay, clean fine to medium sand with lignite Potomac 10Y 4/1 Dark gray
121 10 May 950–960 10 8.7 87 Clean fine to medium sand with lignite, paleosol, clay Potomac 5Y 7/1 Light Gray, 5Y 5/1 Gray,10Y R 5/2 Grayish brown
122 10 May 960–970 10 8.6 86 Muddy to clean sand with dark lamination, pyrite at the bottom Potomac 5Y 7/1 Light gray,5Y 3/1 Very dark gray
123 10 May 970–980 10 2.2 22 Sand and clayey sand Potomac 5Y 4/1 Dark gray
124 10 May 980–990 10 5 50 Laminated clay over coarse to very coarse sand Potomac 7/N Light gray
125 11 May 990–1000 10 1.9 19 Gravel, very coarse sand, and laminated clay Potomac 7/N Light gray
126 11 May 1000–1010 10 10 100 Very coarse sand with pebbles and clay laminae Potomac 7/N Light gray
127 11 May 1010–1020 10 10 100 Very coarse sand with pebbles and clay laminae Potomac 7/N Light gray
128 11 May 1020–1030 10 9.4 94 Very coarse sand with pebbles and clay laminae Potomac 7/N Light gray
129 12 May 1030–1040 10 1 10 Sandy, silty clay Potomac 7/N Light gray
130 12 May 1040–1042 2 0.9 45 Medium to coarse sand Potomac 7/N Light gray
131 12 May 1042–1047 5 3.3 66 Medium to coarse sand Potomac 7/N Light gray
132 12 May 1047–1055 8 6.35 79 Medium to coarse sand Potomac 7/N Light gray
133 12 May 1055–1065 10 1 10 Gravel Potomac 7/N Light gray
134 13 May 1065–1070 5 1 20 Gravel Potomac 7/N Light gray
135 13 May 1070–1073 3 0 50 No recovery Potomac
136 13 May 1073–1080 7 6.2 89 Medium to coarse sand Potomac 7/N Light gray
137 13 May 1080–1090 10 2.9 29 Medium to coarse sand Potomac 7/N Light gray