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Table 1. Major and trace element analyses of basalts from Leg 163. (Continued on next page.)

Hole: 989A 989B 989B 989B 989B 989B 990A 990A 990A 990A 990A 990A 990A 990A 990A 990A 990A

Core, section
2R-3
5R-2
10R-2
10R-7
11R-1
13R-2
1R-1
1R-1
1R-1
1R-2
1R-2
3R-1
3R-1
5R-4
7R-3
8R-4
9R-3

Interval (cm):
68-81
41-47
9-15
59-64
58-64
120-126
71-75
90-98
137-141
27-31
56-62
10-18
60-66
79-85
34-39
26-32
76-82

Piece:
3
3A
2
5A
7
16
11
14
20
6
11
2
7
3
1A
3A
3C

Depth (mbsf):
12.12
22.60
65.92
73.32
74.68
81.30
182.71
182.90
183.37
183.77
184.06
191.70
192.20
216.89
224.64
235.68
244.33

Unit:
989-1
989-1
989-1
989-1
989-2
989-2
990-clast
990-clast
990-clast
990-clast
990-clast
990-clast
990-clast
990-1
990-1
990-2

990-2
Major elements (wt%):

SiO2
50.22
50.18
49.91
49.99
50.43
50.62
45.66
43.09
49.28
48.17
50.13
50.59
49.62
51.16
51.09
50.61
50.88

TiO2
1.064
1.084
1.006
1.033
0.914
0.901
1.225
1.214
1.387
2.501
1.593
1.591
1.118
1.256
1.198
0.959
0.964

Al2O3
13.68
13.61
13.71
13.41
14.17
14.17
17.70
17.98
19.94
18.58
20.60
20.88
14.73
13.80
13.57
15.16
15.33

Fe2O3
4.84
4.73
5.39
6.11
2.64
2.31
4.16
5.29
5.55
5.58
4.47
5.14
4.18
4.95
3.90
4.66
2.89

FeO
8.03
8.38
7.29
7.01
8.71
8.95
4.50
6.26
4.44
4.62
4.06
3.37
7.65
8.44
9.69
6.90
8.06

MnO
0.22
0.23
0.20
0.20
0.21
0.20
0.29
0.27
0.08
0.16
0.10
0.11
0.18
0.20
0.23
0.21
0.19

MgO
7.27
7.14
7.94
8.03
7.87
7.65
5.23
6.05
4.51
4.30
3.74
3.33
7.57
6.21
6.44
6.99
6.83

CaO
11.60
11.49
11.20
10.67
12.39
12.50
11.58
8.41
8.22
9.05
7.36
7.69
11.14
10.35
10.33
11.26
11.58

Na2O
2.25
2.16
2.05
2.11
1.95
1.88
2.51
2.38
3.41
3.16
3.63
3.90
2.46
2.46
2.21
2.12
2.16

K2O
0.078
0.064
0.057
0.117
0.099
0.056
1.349
1.374
0.839
1.067
1.382
1.323
0.142
0.268
0.224
0.226
0.194

P2O5
0.116
0.109
0.089
0.095
0.090
0.087
0.203
0.175
0.244
0.405
0.310
0.353
0.102
0.126
0.123
0.109
0.098

Volatiles:
1.13
1.18
1.34
1.33
0.77
0.81
4.91
6.76
1.95
2.11
1.97
1.63
1.16
0.92
1.15
1.14
0.94

Sum:
100.50
100.35
100.18
100.10
100.24
100.13
99.32
99.26
99.86
99.71
99.33
99.89
100.04
100.13
100.14
100.35
100.09





































Mg#:
54.28
53.35
56.97
56.50
58.94
58.37
56.19
52.63
49.15
47.45
48.32
45.70
57.30
49.32
49.65
56.03
56.45




































Trace elements (ppm):

Nb
2.4
2.7
1.9
2.1
2.2
2.0
1.7
1.8
1.9
19.2
2.5
2.6
2.0
3.5
3.4
2.4
2.1

Zr
62
58
45
52
47
46
67
65
80
118
94
87
57
72
67
56
57

Y
30
28
24
25
24
23
49
53
22
38
29
26
28
33
33
25
25

Sr
74
71
69
68
84
83
185
162
512
488
555
715
82
98
93
113
119

Rb
1.1
0.6
0.9
1.6
1.7
1.3
5.5
8.4
5.1
13.1
7.5
7.1
1.8
2.3
2.0
1.9
1.6

Th
0.0
1.0
0.7
0.4
0.6
0.6
0.6
0.0
0.0
1.6
0.4
0.9
0.9
0.3
0.9
0.9
0.3

Pb
0.0
1.6
0.3
0.0
0.2
25.5
102.1
1.1
3.5
1.7
3.5
3.5
0.5
0.9
1.2
1.2
1.8

La
4
1
5
2
2
4
8
8
11
21
14
12
2
4
4
4
5

Ce
8
9
7
7
10
7
24
23
29
45
35
37
6
15
11
13
12

Nd
8
9
4
7
7
6
21
20
19
36
26
25
7
10
8
8
7

Zn
98
102
88
91
85
86
104
79
85
128
80
108
101
104
106
88
85

Cu
195
211
195
190
151
151
177
192
115
115
126
107
135
190
102
69
115

Ni
73
69
80
75
96
103
322
280
71
72
79
56
99
54
51
70
72

Co

61
56
64
51
50
52
43
27
29
31
26
81
53
49
44
46

Cr
50
49
54
54
219
229
1825
1845
42
148
64
53
110
36
36
128
129

V
383
413
409
390
328
327
378
400
312
408
363
354
395
394
371
314
309

Ba
15
19
19
17
34
21
107
89
452
405
512
613
28
59
60
58
69

Sc
48
53
52
54
51
52
57
67
49
50
55
48
62
55
51
50
46

Ga

16
16
17
16
15
19
18
22
23
26
24
18
18
17
17
16




































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