Table T1. Core descriptions, Ocean View borehole, Leg 174AX.

Core
Interval
(ft)
Recovery (ft)
Recovery
(%)
Primary lithology
Color (Munsell)
Formation
Hole A




1 5-10 2.45 49 Sand and pebble gravel 10YR 4/6 yellowish brown Unnamed gravel member; Cape May
2 10-15 1.35 27 Sandy gravel 10YR 4/6 yellowish brown Unnamed gravel member; Cape May
3 15-20 0.3 6 Gravel (caved) Not recorded Caved
4 20-25 1.2 24 Fine-very fine sand 10YR 5/6 yellowish brown Cape May
5 25-30 3.85 77 Fine-medium sand 10YR 5/4 yellowish brown Cape May
6 30-35 1.65 33 Very fine sand 2.5Y 6/3 light yellowish brown Cape May
7 35-40 3.4 68 Poorly sorted fine-medium sand 2.5Y 6/3 light yellowish brown Cape May
8 40-45 2.7 54 Clayey fine-very coarse sand 10YR 7/2 light gray Cape May
9 45-50 3.5 70 Fine sand with clay-bedded clay drapes 2.5Y 6/2 light yellowish brown Cape May
10 50-56 4 67 Cross-bedded sand/fining-upward sand 10YR 6/6 brownish yellow Cape May
11 56-60 3.6 90 Poorly sorted fine-coarse sand 10YR 6/2 light yellowish brown Cape May
12 60-63 2.25 75 Clay and medium-coarse sand 7.5YR 6/8 reddish yellow Cape May
13 63-66 1.9 63 Fine-very coarse sand 10YR 6/6 brownish yellow Cape May
14 66-70 2.75 69 Fine-very coarse sand 10YR 6/4 light brownish yellow Cape May
15 70-73 1.7 57 Gravel (0-0.9 ft) and silty fine-coarse cross-bedded sand 10YR 6/4 light yellowish brown; 10YR 7/3 very pale brown Cape May
16 73-77 2.55 64 Slightly silty, slightly gravelly medium sand 2.5Y 7/3 pale yellow Cape May
17 77-80 2.6 87 Medium-coarse sand; possible contact (color change) 7.5YR 6/6 reddish yellow with 10YR 7/2 light gray Cape May
18 80-85 3.7 74 Medium to coarse quartz sand 2.5Y 8/4 pale yellow to 2.5Y 7/6 yellow Cape May
19 85-90 3.5 70 Fine to medium to occasional coarse quartz sand; occasional bedding 2.5Y 7/5 yellow to 2.5Y 6/6 olive yellow to 5YR 5/8 yellowish red Cape May
20 90-95 3.9 78 Medium to very coarse quartz sand 2.5Y 7/4 pale yellow Cape May
21 95-100 3.3 66 Medium to coarse quartz sand 2.5Y 7/5 yellow to 2.5Y 6/6 olive yellow to 5YR 5/8 yellowish red Cape May
22 100-105 1.6 32 Medium to very coarse quartz sand with pebbles 2.5Y 7/5 yellow to 5YR 3/4 dark reddish brown Cape May
23 105-110 3.7 74 Medium to coarse quartz sand; silty fine sand; contact at 107.5 ft 10YR 6/6 brownish yellow to 7.5YR 6/6 reddish yellow with 7.5YR 2.5/3 very dark brown; 2.Y5 5/6 light olive brown; 2.5Y 6/6 olive yellow; 5Y 3/1 very dark gray Cape May/?Cohansey
24 110-120 8.4 84 Silty fine sand 5Y 3/1 dark gray to 5Y 4/1 very dark gray ?Cohansey
25 120-130 0 0 No recovery
?Cohansey
26 130-140 9.8 98 Clayey fine sand to silty sandy clay; clay Dark gray to very dark gray 5Y 4/1 to 5Y 3/1 above 5Y 5/3 olive ?Cohansey
27 140-144.5 3.3 73 Mottled clay to 141.9 ft; medium to pebbly quartz sand below 5Y 5/3 olive to 2.5Y 4/1 dark gray ?Cohansey
28 144.5-150 1.7 31 Coarse quartz sand 2.5Y 5/1 gray ?Cohansey
29 150-155 1.8 36 Silty fine quartz sand, fining downward to clayey fine quartz sand at base; occasional lignite in upper portion N 3/ to N 4/ dark gray-very dark gray ?Cohansey
30 155-160 5.6 112 Interbedded clays and clayey silty very fine quartz sand; ?sequence boundary at 159.8 ft; silty clayey fine quartz sand 10YR 4/3 brown, 5YR 5/2 reddish brown, 5GY 6/1 greenish gray; 7.5YR 5/1 gray ?Cohansey
31 160-167.5 7.5 100 Clayey silty quartz sand; massive medium sand below; contact at 66.7 ft 5YR 5/2 reddish gray; 5Y 3/1 very dark gray; 5Y 5/1 gray; 7.5YR 5/1 gray; 5G 5/2 grayish green; 5B 4/1 dark bluish gray ?Cohansey/Cohansey
32 167.5-170 2.5 100 Fine-medium quartz sand N6/ gray Cohansey
33 170-180 1.2 12 Medium quartz sand N6/ gray Cohansey
34 180-190 9.4 94 Fine-medium quartz sands; poorly sorted slightly gravelly fine-coarse sand 10YR 6/2 light brownish gray; 10YR 6/4 light yellowish brown Cohansey
35 190-200 9 90 Slightly pebbly fine-coarse sand 10YR 6/4 light yellowish brown Cohansey
36 200-208 7.8 98 Medium-coarse quartz sand 10YR 6/2 light brownish gray; 10YR 6/6 brownish yellow Cohansey
37 208-210 2.97 149 Medium-coarse quartz sand 2.5Y 6/3 light yellowish brown Cohansey
38 210-220 3.6 36 Gravelly medium-coarse quartz sand/sandy silty clay 10YR 6/2 light brownish gray; 10YR 6/6 brownish yellow Cohansey
39 220-226.5 5.9 91 Sandy silty clay; organic medium-coarse sands; contact at 220.55 ft 5GY 5/1 greenish gray; 10YR 3/1; very dark gray; 10YR 3/1 very dark gray Cohansey/Kirkwood (Kw-C)
40 226.5-230 3.6 103 Fine and medium quartz sand 2.5Y 4/1 dark gray Kirkwood (Kw-C)
41 230-240 9.7 97 Medium quartz sand 2.5Y 4/1 dark gray; 2.5Y 3/1 very dark gray (subordinate) Kirkwood (Kw-C)
42 240-250 9.7 97 Fine-medium quartz sand/silty clays; lithology change at 246.9 ft 2.5Y 4/1 dark gray; 5Y 4/1 dark gray; 5Y 4/2 olive gray Kirkwood (Kw-C)
43 250-260 10.35 104 Silty clay (dominant) and clayey silt 5GY 5/1 to 5GY 4/1; greenish gray-dark greenish gray Kirkwood (Kw-C)
44 260-270 7 70 Finely laminated silty clay; sand with silt and clay; sequence boundary at 267 ft 5Y 3/2 dark olive gray; 5Y 3/1 very dark gray Kirkwood (Kw-C)
45 270-280 9.6 96 Silty fine sand 5GY 4/1; dark greenish gray Kirkwood (Kw-C)
46 280-290 4.8 48 Silty fine sand, cross bedding 5GY 4/1; dark greenish gray Kirkwood (Kw-C)
47 290-300 10.4 104 Slightly sandy silty clay, shelly throughout, light and dark lenses 5GY 4/1 dark greenish gray; 5Y 5/2 olive gray; 5Y 2.5/1 black Kirkwood (Kw-C)
48 300-310 10.9 109 Slightly silty clay, shells throughout; darker interval; shell hash 5GY 4/1 dark greenish gray; 5Y 2.5/1 black Kirkwood (Kw-C)
49 310-320 8.9 89 Silty clay, thin shells throughout, occasional dark lenses and thin organic-rich beds; shell hash 5GY 4/1 dark greenish gray; 5Y 2.5/1 black Kirkwood (Kw-C)
50 320-326.5 7.6 117 Very slightly silty clay, shells throughout; silty fine sand; indurated at base 5Y 3/2-5Y 2/2 olive gray-black; 5Y 4/1-5Y 3/1 dark gray-very dark gray Kirkwood (Kw-C)
51 326.5-330 0.7 20 Shell bed, indurated, fine sand matrix; silty fine sand; sequence boundary at 327.1 ft 5Y 3/2 dark olive gray; 5Y 2.5/1 black; 5Y 2.5/2 black Kirkwood (Kw-C/Kw3)
52 330-340 9.4 94 Silty fine sand with clay and shells; silty fine sand with shells; slightly silty fine sand 5Y 3/2 dark olive gray; 5Y 2.5/1 black; 5Y 2.5/2 black Kirkwood (Kw3)
53 340-350 1 10 Silty fine quartz sand; clayey fine quartz sand; shell hash 5Y 3/2 dark olive gray Kirkwood (Kw3)
54 350-360 10.5 105 Micaceous very silty very fine sand to sandy silt, shells; shell hash; laminated clays 5Y 3/1 very dark gray to 5Y 2.5/1 black; 2.5Y 5/1 gray to 5Y 5/2 olive; 5Y 3/2 dark olive gray to 5Y 4/1 dark gray Kirkwood (Kw3)
55 360-370 10.35 104 Laminated silty clay; silty clay; fine sandy silty clay with abundant shell fragments; shell hash 5Y 2.5/1 black to 5Y 3/2 dark olive gray to 5Y 5/1 gray; 5G 4/1 dark greenish gray; N2.5/ black; 5Y 2.5/1 black Kirkwood (Kw3)
56 370-380 10 100 Slightly silty clay 5Y 3/2 dark olive gray; 5GY 4/1 dark greenish gray Kirkwood (Kw3)
57 380-383 3.5 117 Slightly silty clay; shells 0-3.4 ft 5GY 4/1 dark greenish gray Kirkwood (Kw3)
58 383-390 7.6 109 Slightly silty clay 5GY 4/1 dark greenish gray Kirkwood (Kw3)
59 390-400 10.55 106 Slightly silty clay, shell debris in lower part 5GY 4/1 dark greenish gray Kirkwood (Kw3)
60 400-410 9.75 98 Slightly silty clay with shell debris 5GY 4/1 dark greenish gray Kirkwood (Kw3)
61 410-420 7.1 71 Clayey medium-coarse sand/sandy shelly clay; contact at 410.05 ft 5GY 3/2 dark olive gray; 5GY 4/1 dark greenish gray Kirkwood (Kw3/Kw2b)
62 420-430 8.05 81 Shelly very clayey fine sand 5GY 4/1 dark greenish gray Kirkwood (Kw2b)
63 430-440 9.9 99 Shelly clayey sand; large burrow at 433.25 ft; silty clay 5GY 4/1 dark greenish gray; 5Y 3/2 dark olive gray Kirkwood (Kw2b)
64 440-450 1.5 15 Shelly clayey sand 5GY 4/1 dark greenish gray Kirkwood (Kw2b)
65 450-460 9.2 92 Shelly clayey sand N4 dark gray 5GY 4/1 dark gray Kirkwood (Kw2b)
66 460-465 4.5 90 Clay with burrowed sand; sequence boundary at 465 ft 7.5YR 3/2 dark brown; 5Y 4/1 dark gray (burrow) Kirkwood (Kw2b)
67 465-470 4.45 89 Shelly medium-coarse quartz sand; three fining upward cycles 5Y 4/1 dark gray; 10YR 4/1 interbeds Kirkwood (Kw2a3)
68 470-480 7.3 73 Interbedded medium-very coarse sand; dark silty clay; lithology change at 477.1 ft to silt 5Y 4/1 dark gray; 10YR 4/1 interbeds Kirkwood (Kw2a3)
69 480-490 2.3 23 Silt 5Y 3/2 dark olive gray Kirkwood (Kw2a3)
70 490-500 10.4 104 Silt; lithology change at 495 ft; silty clay 5Y 3/2 dark olive gray; 2.5Y 3/2 very dark grayish brown Kirkwood (Kw2a3)
71 500-507.5 6.65 89 Silty clay grading down to shell bed and shell hash; sequence boundary at 503.8 ft 5Y 3/2 dark olive gray; 2.5Y 3/2 very dark grayish brown Kirkwood (Kw2a3/Kw2a2)
72 507.5-510 2.75 110 Shelly medium sand to sandy shell hash 5Y 3/2 dark olive gray Kirkwood (Kw2a2)
73 510-520 7.55 76 Shelly medium sand to sandy shell hash 5Y 3/2 dark olive gray Kirkwood (Kw2a2)
74 520-530 8.6 86 Clayey sand with shell hash; laminated clayey with shell hash; facies change at 524 ft 5Y 3/2 dark olive gray; 5Y 2.5/2 black Kirkwood (Kw2a2)
75 530-534 3.1 78 Laminated clayey silt; sandy silt to silty sand; sequence boundary at 531.6 ft 5Y 2.5/2 black; 5Y 3/2 dark olive gray Kirkwood (Kw2a2/Kw2a1)
76 534-540 5.1 85 Cross-bedded silty fine sand interbedded with laminated silty clay 5Y 2.5/2 black; 5Y 3/1 very dark gray Kirkwood (Kw2a1)
77 540-550 10.2 102 Laminated to thin-bedded clay-silt 5Y 2.5/2 black Kirkwood (Kw2a1)
78 550-560 4.9 49 Laminated silty-clay 5Y 3/2 dark olive gray Kirkwood (Kw2a1)
79 560-570 9.4 94 Laminated silty-clay 5Y 3/2 dark olive gray; 5Y 2.5/2 black Kirkwood (Kw2a1)
80 570-580 10.3 103 Laminated silty-clay; trace shell 5Y 3/2 dark olive gray; 5Y 2.5/2 black Kirkwood (Kw2a1)
81 580-590 8.3 83 Laminated silty-clay; trace shell 5Y 3/2 dark olive gray Kirkwood (Kw2a1)
82 590-600 10 100 Micaceous slightly silty clay 5Y 3/2 dark olive gray Kirkwood (Kw2a1)
83 600-610 10.5 105 Micaceous slightly silty clay 5Y 3/2 dark olive gray Kirkwood (Kw2a1)
84 610-619 8.1 90 Micaceous slightly silty clay 5Y 3/2 dark olive gray Kirkwood (Kw2a1)
85 619-627 8.2 103 Micaceous slightly silty clay; contact clayey sand to sandy clay/shell bed/indurated zone; facies change at 627.0-627.2 ft 5Y 3/2 dark olive gray; 5Y 3/1 very dark gray to 5Y 2.5/1 very dark gray to 5Y 3/1 black; 5Y 6/2 light olive gray Kirkwood (Kw2a1)
86 627-630 3 100 Indurated zone; sandy, shelly, clay; clayey fine sand 5Y 6/1 gray; 5Y 3/2 dark olive gray; 5Y 3/2 Kirkwood (Kw2a1)
87 630-636 6.25 104 Micaceous silty clay; clayey very fine sand; indurated zone 5Y 4/1 dark gray; 5Y 3/1 very dark gray; 5Y 6/1 gray Kirkwood (Kw2a1)
88 636-640 3.6 90 Interbedded clay and sands 5Y 3/1 very dark gray to 5Y 2.5/1 black Kirkwood (Kw2a1)
89 640-650 1.65 17 Clayey fine to medarkosic sand; shell hash; sequence boundary at 641.55 ft 5Y 3/2 dark olive gray Kirkwood (Kw2a1/Kw1b)
90 650-660 7 70 Shell hash; shelly sand; shell bed; very shelly sand 5Y 3/2 dark olive gray Kirkwood (Kw1b)
91 660-670 1.5 15 Shelly fine-medium sand 5Y 4/1 dark gray Kirkwood (Kw1b)
92 670-675 4.95 99 Medium-coarse quartz 5Y 3/1 very dark gray Kirkwood (Kw1b)
93 675-680 3.8 76 Alternations of fine-coarse sands 5Y 5/1 gray; 5Y 3/2 dark olive gray Kirkwood (Kw1b)
94 680-687.5 7.3 97 Alternations of fine-coarse sands and clay 5Y 5/1 gray; 5Y 3/2 dark olive gray Kirkwood (Kw1b)
95 687.5-695 7.6 101 Alternations of fine-coarse sands and clay 5Y 4/1 dark gray; 10YR 3/1 very dark gray Kirkwood (Kw1b)
96 695-700 5.1 102 Alternations of fine-coarse sands and clay 5Y 3/1 to 5Y 2.5/2 very dark gray to black; 10YR 3/1 very dark gray Kirkwood (Kw1b)
97 700-705 2.1 42 Mainly fine to medium quartz sand with clay laminations 5Y 3/2 dark olive gray to 5Y 3/2 dark olive gray Kirkwood (Kw1b)
98 705-710 4.4 88 Slightly silty to sandy clays 10YR 3/1 very dark gray to 5Y 3/2 dark olive gray Kirkwood (Kw1b)
99 710-713 3.9 130 Alternations of clayey silty fine sands and silty micaceous clay 10YR 3/1 very dark gray; 5Y 3/2 dark olive gray; 5Y 3/1 very dark gray Kirkwood (Kw1b)
100 713-720 5.7 81 Clayey glauconitic fine quartz sand at top massive shell bed at bottom; sequence boundary 718.7 ft 5GY 4/1 dark greenish gray to 5Y 3/1 very dark gray Kirkwood (Kw1b/Kw1a3)
101 720-730 2.3 23 Fine, medium to coarse quartz sand 5Y 4/1 dark gray Kirkwood (Kw1a3)
102 730-735 4 80 Fine-medium quartz sand with clay interbeds 5Y 4/1 dark gray; 10YR 4/1 dark gray Kirkwood (Kw1a3)
103 735-740 4.7 94 Fine-medium quartz sand with silty clay interbeds; sequence boundary at 740 ft 5Y 4/1 dark gray; 10YR 3/1 very dark gray Kirkwood (Kw1a3)
104 740-750 1.6 16 Medium-very coarse quartz sand 5Y 4/1 dark gray Kirkwood (Kw1a2)
105 750-760 9.1 91 Cross-bedded medium quartz sand; some medium-coarse sand 10YR 4/2 dark grayish brown Kirkwood (Kw1a2)
106 760-765 4.6 92 Cross-bedded fine-medium sand 10YR 4/2 dark grayish brown; 10YR 5/1 gray Kirkwood (Kw1a2)
107 765-775 10.05 101 Cross-bedded fine-medarkosic sand; clay at base 10YR 4/1 dark gray to 10YR 4/2 dark grayish brown; 10YR 3/1 very dark gray and 10YR 2/2 very dark brown Kirkwood (Kw1a2)
108 775-780 0.9 18 Clay at top; silty fine sand to medarkosic-coarse sand; sequence boundary at 775.9-780 ft 10YR 3/1 very dark gray; 10YR 4/1 dark gray Kirkwood (Kw1a2)
109 780-785 0.3 6 Clay at top; fine sandy clay with fine-medarkosic sand interbeds to fine-medarkosic sand 10YR 3/1 very dark gray; 10YR 3/2 very dark grayish brown to 10YR 4/1 dark gray Kirkwood (Kw1a1)
110 785-790 4.1 82 Slightly silty fine-medium sand 10YR 3/2 very dark grayish brown Kirkwood (Kw1a1)
111 790-800 9.15 92 Fine-medium sand 10YR 4/1 dark gray Kirkwood (Kw1a1)
112 800-810 9.05 91 Fine-medium sand/interbedded sand and slightly silty clay 10YR 4/1 dark gray; 10YR 3/1 very dark gray Kirkwood (Kw1a1)
113 810-820 10.3 103 Fine-medium sand/lithology change to sandy silty clay at 811.3 ft 10YR 4/1 dark gray; 10YR 3/1 very dark gray Kirkwood (Kw1a1)
114 820-830 10.5 105 Silty clay with sandy interbeds 10YR 4/1 dark gray; 10YR 3/1 very dark gray Kirkwood (Kw1a1)
115 830-840 8.8 88 Silty clay with sandy interbeds 10YR 3/1 very dark gray Kirkwood (Kw1a1)
116 840-850 10.55 106 Laminated silty fine sand interbedded with laminated silty clay dark gray-black Kirkwood (Kw1a1)
117 850-860 9.65 97 Laminated silty fine sand interbedded with laminated silty clay 2.5Y 3/1 very dark gray; 25Y 4/1 dark gray Kirkwood (Kw1a1)
118 860-870 3.55 36 Interbedded silty clay and silty fine sand 2.5Y 3.1 very dark gray; 25Y 4/1 dark gray Kirkwood (Kw1a1)
119 870-880 9.1 91 Sandy glauconite silt overlying silty clay with shells 7.5YR 3/1 very dark gray/5G 4/1 dark greenish gray Kirkwood (Kw1a1)
120 880-890