Table 1. Composition of Leg 165 sediments, based on shipboard XRF and coulometry.

Core, section, interval (cm) Depth
(mbsf) 		Age
(Ma) 		Cr
(ppm) 		Carbonate (wt%) Terrigenous (wt%) Ash (wt%) Accumulation rate
Carbonate (g/cm2/k.y.)
Terrigenous (g/cm2/k.y.)
Ash
(g/cm2/k.y.)
165-998A-








1H-2, 28-30 1.78 ND 22 74 20 6 ND ND ND
1H-6, 33-35 7.83 ND 20 73 18 9 ND ND ND
2H-3, 27-29 12.07 0.65 14 84 13 3 1.61 0.24 0.06
2H-5, 27-29 15.07 0.81 17 76 15 9 1.36 0.28 0.15
3H-5, 33-35 24.63 1.31 21 75 19 6 1.34 0.34 0.11
4H-2, 27-29 29.57 1.58 34 66 31 3 1.21 0.57 0.06
4H-5, 27-29 34.07 1.82 26 69 24 7 1.32 0.45 0.14
5H-1, 27-29 37.57 2.00 16 79 15 6 1.61 0.30 0.13
6H-1, 28-30 47.08 2.51 21 79 19 2 1.58 0.38 0.04
7H-2, 50-51 58.30 3.10 18 78 16 6 1.64 0.34 0.12
8H-2, 110-112 68.40 3.63 24 75 22 3 1.58 0.46 0.07
9H-2, 37-39 77.17 4.09 18 78 16 6 1.76 0.37 0.13
10H-5, 100-102 91.80 4.87 19 78 17 5 1.69 0.38 0.10
11H-4, 28-30 99.08 5.26 25 73 23 4 1.60 0.50 0.09
12H-4, 26-28 108.56 6.04 28 71 25 4 0.76 0.27 0.04
13H-1, 27-29 113.57 6.66 41 56 37 7 0.60 0.40 0.07
13H-4, 27-29 118.12 7.22 36 55 33 12 0.59 0.35 0.13
14H-1, 26-28 123.06 7.84 15 74 14 12 0.71 0.13 0.12
15H-1, 27-29 132.57 9.00 12 83 11 6 0.89 0.12 0.07
16H-1, 27-29 142.07 10.18 13 74 12 14 0.69 0.11 0.13
16H-4, 28-30 146.58 10.74 81 12 74 14 0.11 0.67 0.13
17H-1, 26-28 151.56 11.35 83 BDL 75 25 BDL 0.59 0.19
18X-4, 10-12 165.40 13.06 12 74 11 15 0.67 0.10 0.14
19X-4, 28-30 170.98 13.77 13 77 12 11 1.44 0.22 0.21
20X-1, 29-31 176.19 14.10 9 77 8 15 1.15 0.12 0.22
21X-1, 40-42 185.90 14.71 9 74 8 18 1.36 0.15 0.33
21X-4, 42-44 190.42 14.98 4 88 4 8 1.67 0.07 0.16
23X-4, 31-33 209.61 16.18 5 ND 5 ND ND 0.08 ND
25X-4, 10-12 228.60 17.37 4 86 4 10 1.44 0.06 0.17
27X-4, 41-43 248.11 18.59 5 ND 5 ND ND 0.10 ND
29X-1, 27-29 262.77 19.51 7 82 6 12 1.75 0.14 0.25
33X-1, 54-56 301.44 21.92 3 91 3 6 1.85 0.06 0.13
38X-2, 62-64 351.12 24.65 3 92 3 5 3.17 0.09 0.18
41X-2, 99-100 380.39 25.87 4 ND 4 ND ND 0.13 ND
48X-2, 49-51 447.29 28.64 ND 93 ND ND 3.03 ND ND
53X-1, 27-29 493.57 30.56 3 91 3 6 3.22 0.10 0.22
60X-3, 62-64 564.32 33.50 4 88 4 8 3.24 0.13 0.31
61X-1, 45-47 570.75 33.76 4 88 4 8 3.18 0.13 0.30
62X-1, 65-67 580.55 34.17 8 87 7 6 3.52 0.29 0.23
63X-1, 0-2 589.50 34.54 10 ND 9 ND ND 0.37 ND
65X-1, 28-30 608.98 35.35 6 ND 5 ND ND 0.23 ND
165-998B-








11R-1, 47-49 654.97 37.34 4 89 4 7 2.54 0.10 0.21
165-999A-








1H-3, 77-79 3.77 0.11 80 31 73 BDL 0.78 1.82 BDL
2H-3, 127-129 11.87 0.36 56 46 51 3 1.27 1.40 0.09
3H-5, 7-9 23.17 0.69 61 48 55 BDL 1.39 1.60 BDL
4H-3, 53-55 30.13 0.90 77 34 70 BDL 1.12 2.31 BDL
5H-3, 112-114 40.22 1.20 75 35 68 BDL 1.11 2.17 BDL
6H-4, 3-5 50.13 1.49 58 42 53 5 1.25 1.57 0.16
7H-5, 30-32 61.40 1.83 55 48 50 2 1.57 1.64 0.07
8H-3, 97-99 68.57 2.04 51 49 46 5 1.56 1.48 0.15
9H-3, 77-79 77.87 2.32 37 57 34 9 1.78 1.05 0.29
10H-2, 82-84 85.92 2.56 38 60 35 5 1.72 0.99 0.16
11H-3, 7-9 96.17 2.87 36 56 33 11 1.54 0.90 0.31
12H-3, 49-51 106.09 3.20 38 50 35 15 1.12 0.78 0.35
13H-1, 88-90 112.98 3.43 36 57 33 10 1.64 0.94 0.30
14H-4, 128-130 127.38 3.91 37 59 34 7 1.75 1.00 0.22
15H-2, 77-79 133.37 4.11 43 51 39 10 1.49 1.14 0.29
16H-3, 97-99 144.57 4.48 47 46 43 11 1.54 1.43 0.38
17H-3, 92-94 154.02 4.61 45 50 41 9 0.87 0.72 0.16
18H-2, 97-99 162.07 5.03 26 67 24 9 1.46 0.52 0.20
19H-2, 78-80 171.38 5.51 33 57 30 13 1.17 0.61 0.27
21H-5, 92-94 195.02 6.75 44 48 40 12 1.06 0.88 0.27
22X-2, 78-80 199.88 7.00 32 54 29 17 1.14 0.62 0.36
23X-1, 144-146 202.04 7.12 31 63 28 9 1.34 0.60 0.19
24X-4, 98-100 215.78 7.84 37 50 34 16 1.10 0.74 0.36
25X-4, 101-103 225.41 8.35 40 48 36 16 0.72 0.55 0.24
26X-1, 98-100 230.48 8.61 33 53 30 17 0.91 0.52 0.29
27X-4, 127-129 244.87 9.36 37 53 34 13 1.14 0.72 0.29
29X-1, 127-129 259.67 10.14 35 55 32 13 1.15 0.66 0.27
29X-6, 13-15 266.03 10.47 89 11 81 8 0.25 1.85 0.19
30X-2, 128-130 270.78 10.72 54 37 49 14 0.81 1.07 0.30
30X-7, 18-20 277.18 11.06 97 10 88 2 0.22 1.96 0.04
31X-5, 126-128 284.86 11.46 116 2 105 BDL 0.04 2.28 BDL
32X-5, 89-91 294.09 11.94 61 32 55 13 0.73 1.26 0.29
33X-5, 87-89 303.57 12.44 34 51 31 18 0.94 0.57 0.33
34X-3, 90-92 310.20 12.78 40 40 36 24 0.68 0.62 0.40
36X-2, 97-99 328.07 13.72 30 50 27 23 1.03 0.56 0.47
37X-6, 102-104 343.72 14.54 18 53 16 31 1.14 0.35 0.66
39X-1, 129-131 355.69 15.17 12 71 11 18 1.65 0.25 0.42
40X-3, 97-99 367.97 15.74 20 63 18 19 2.39 0.69 0.71
42X-4, 129-131 389.19 16.45 13 71 12 17 2.65 0.44 0.64
43X-3, 77-79 396.77 16.71 13 66 12 22 2.36 0.42 0.79
45X-4, 99-100 417.59 17.41 15 62 14 24 2.28 0.50 0.89
47X-5, 79-81 438.19 18.12 7 75 6 19 3.13 0.27 0.78
47X-5, 81-83 438.21 18.12 7 74 6 20 3.09 0.27 0.82
48X-5, 119-121 448.29 18.45 10 71 9 20 2.88 0.37 0.81
50X-3, 84-86 464.14 19.00 12 55 11 34 2.39 0.47 1.48
51X-4, 127-129 475.67 19.38 9 70 8 22 2.82 0.33 0.88
52X-1, 101-103 480.51 19.54 11 57 10 33 2.28 0.40 1.32
53X-5, 82-84 495.92 20.07 10 67 9 24 3.06 0.41 1.09
54X-3, 104-106 502.74 20.30 8 69 7 24 3.25 0.34 1.12
55X-CC, 7-9 508.37 20.50 14 62 13 25 3.24 0.67 1.32
56X-CC, 6-8 513.88 20.68 12 68 11 21 3.77 0.60 1.17
57X-CC, 10-12 518.31 20.83 14 70 13 17 3.25 0.59 0.80
58X-5, 30-32 533.90 21.36 10 57 9 34 2.53 0.40 1.51
59X-1, 37-39 537.57 21.48 9 66 8 26 3.06 0.38 1.20
60X-4, 58-60 551.88 21.96 8 66 7 27 3.24 0.36 1.31
61X-3, 92-94 560.42 22.26 6 75 5 20 3.69 0.27 0.96
165-999B-








5R-2, 24-26 574.30 22.73 5 71 5 24 4.67 0.30 1.61
6R-1, 75-77 577.95 22.85 12 65 11 24 4.13 0.69 1.53
8R-2, 28-30 593.58 23.38 10 69 9 22 4.56 0.60 1.45
9R-5, 93-95 607.10 23.93 8 62 7 31 1.63 0.19 0.81
10R-1, 31-33 611.41 24.27 8 72 7 21 2.05 0.21 0.59
11R-3, 98-100 624.15 25.27 9 70 8 22 1.98 0.23 0.62
12R-5, 75-77 635.70 26.18 7 72 6 22 2.09 0.18 0.63
13R-4, 9-11 644.49 26.87 4 81 4 15 2.38 0.11 0.45
15R-2, 72-74 661.32 28.20 6 72 5 23 2.10 0.16 0.66
19R-1, 58-61 682.48 29.86 BDL 84 BDL 16 2.51 0.00 0.48
20R-1, 57-59 685.47 30.10 4 87 4 9 2.54 0.11 0.27
21R-3, 117-119 692.07 30.62 BDL 79 BDL 21 2.38 0.00 0.63
22R-3, 81-83 701.41 31.35 4 80 4 16 2.42 0.11 0.50
23R-1, 102-104 708.22 31.89 4 70 4 26 2.17 0.11 0.82
24R-3, 69-71 720.39 32.85 3 72 3 25 2.04 0.08 0.72
26R-5, 84-86 743.14 34.64 ND ND ND ND ND ND ND
27R-3, 41-43 749.39 35.14 4 72 4 24 2.23 0.11 0.75
28R-4, 79-81 760.99 36.05 BDL 73 BDL 27 2.08 0.00 0.77
29R-5, 93-95 772.33 36.97 BDL 78 BDL 22 1.75 0.00 0.49
31R-2, 2-4 786.42 40.57 BDL 76 BDL 24 2.53 0.00 0.80
32R-2, 46-48 796.26 41.26 BDL 62 BDL 38 2.16 0.00 1.32
33R-5, 30-32 811.00 42.29 BDL 87 BDL 13 3.08 0.00 0.46
34R-3, 35-38 817.85 42.77 5 61 5 34 2.21 0.16 1.25
36R-2, 63-65 835.83 44.02 BDL 83 BDL 17 2.93 0.00 0.60
38R-3, 105-107 856.95 45.50 BDL 67 BDL 33 2.23 0.00 1.10
39R-3, 83-85 866.43 46.17 BDL 73 BDL 27 2.62 0.00 0.97
40R-4, 53-56 877.23 46.92 BDL 82 BDL 18 2.91 0.00 0.64
41R-2, 69-71 884.09 47.40 5 77 5 18 2.81 0.17 0.67
42R-2, 79-81 888.79 47.72 10 51 9 40 1.41 0.25 1.10
44R-3, 112-114 905.22 48.88 12 54 11 35 1.86 0.38 1.21
45R-5, 63-66 917.33 49.72 15 54 14 32 1.76 0.45 1.06
46R-1, 120-122 921.50 50.02 13 47 12 41 1.46 0.37 1.28
47R-2, 122-124 932.72 50.80 40 47 36 17 1.41 1.09 0.50
48R-5, 81-83 946.41 51.76 17 57 15 28 1.93 0.52 0.93
49R-3, 67-68 952.87 52.28 25 65 23 12 1.47 0.51 0.28
50R-4, 97-99 964.27 53.52 21 70 19 11 1.41 0.39 0.22
51R-2, 142-144 971.32 54.29 17 67 15 18 1.55 0.36 0.41
52R-3, 4-6 981.14 55.35 29 62 26 12 1.40 0.60 0.26
53R-4, 96-98 991.83 56.52 20 59 18 23 1.34 0.41 0.52
54R-3, 116-118 1001.56 57.58 18 63 16 21 1.36 0.35 0.45
55R-5, 23-25 1013.33 58.86 34 60 31 9 1.22 0.63 0.18
56R-4, 65-67 1021.85 59.78 18 73 16 11 1.69 0.38 0.25
57R-3, 65-67 1029.95 61.57 4 77 4 19 1.01 0.05 0.25
58R-5, 75-77 1042.15 63.62 6 55 5 40 0.81 0.08 0.58
61R-5, 59-61 1061.69 65.70 4 89 4 7 2.12 0.09 0.18
62R-CC, 17-19 1066.45 66.21 4 87 4 9 2.09 0.09 0.22
165-1001A-








2R-1, 42-44 6.82 ND 44 ND 40 ND ND ND ND
3R-1, 110-112 17.20 1.20 41 58 37 4 0.82 0.52 0.06
6R-1, 145-150 46.35 3.22 55 57 50 BDL 0.80 0.70 BDL
9R-1, 145-150 75.25 5.23 45 54 41 5 0.76 0.58 0.07
11R-4, 98-100 98.48 6.84 51 60 46 BDL 0.98 0.76 BDL
12R-3, 145-150 107.05 7.44 56 57 51 BDL 1.00 0.90 BDL
15R-3, 145-150 135.95 9.44 51 55 46 BDL 0.90 0.76 BDL
17R-4, 98-100 156.18 12.17 19 72 17 11 0.54 0.13 0.08
18R-1, 145-150 161.75 13.00 14 65 13 22 0.49 0.10 0.17
18R-4, 98-100 165.78 19.36 4 68 4 28 0.75 0.04 0.32
21R-1, 84-86 180.44 52.56 8 62 7 31 1.64 0.19 0.82
24R-1, 86-88 209.26 54.08 4 66 4 30 2.01 0.11 0.93
28R-1, 58-60 247.48 56.11 6 73 5 22 2.09 0.16 0.63
34R-3, 145-150 309.05 59.36 8 74 7 19 2.04 0.20 0.52
36R-1, 145-150 325.25 60.22 12 71 11 19 2.47 0.38 0.65
36R-4, 43-45 328.73 60.41 8 60 7 32 2.14 0.26 1.15
40R-3, 0-5 365.30 65.87 9 76 8 16 1.41 0.15 0.29
43R-4, 109-111 396.79 69.15 3 90 3 8 1.98 0.06 0.17
46R-2, 47-49 421.97 71.48 3 93 3 5 2.20 0.06 0.11
51R-3, 93-95 471.61 76.08 3 95 3 2 2.22 0.06 0.06

Notes: ND = not determined, BDL = below detection limit. See text for description of analyses.