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Table 1. Whole-rock analyses.

Leg, hole: 38-338
152-917A
BHVO

Core,
section:
43-1
43-3
45-1


9R-1
11R-4
16R-4
18R-3
19R-4
20R-1
55R-4
64R-1
92R-4
101R-4


(Six)
S.D.
Accepted
S.D.

Interval (cm):
102-107
117-121
62-65


5-10
45-50
39-44
102-107
38-43
9-14
22-27
75-80
57-64
35-40










Unit:
1
1
2


7
13
21
25
31A
31B
60
68
87
92










Series:








Upper
Upper
Upper
Upper
Upper
Upper
Lower
Lower
Lower
Lower


















































XRF






































SiO2


47.03
48.16

46.97
47.73
44.34
46.86
46.98
46.08
48.78
48.79
48.38
50.24









TiO2


1.01
1.10

1.18
1.27
1.12
1.69
1.86
1.47
1.55
1.41
1.09
1.16









Al2O3


15.83
15.18

15.36
14.82
10.34
12.02
13.21
11.52
14.71
15.52
16.19
16.24









Fe2O3


10.43
10.75

12.59
12.22
13.63
14.11
13.72
13.47
12.15
11.14
11.09
9.49









MnO


0.12
0.23

0.21
0.19
0.21
0.23
0.22
0.18
0.17
0.16
0.14
0.2









MgO


8.83
7.95

10.46
10.79
25.35
18.09
13.59
18.41
9.25
7.94
9.31
8.13









CaO


10.33
11.74

10.87
10.89
4.07
7.92
8.82
7.36
12.11
12.19
10.45
12.55









Na2O


2.27
2.20

1.76
2.05
0.7
1.42
1.74
1.28
2.06
1.91
2.33
2.24









K2O


0.08
0.09

0.24
0.04
0.02
0.13
0.24
0.13
0.12
0.29
0.16
0.19









P2O5


0.08
0.08

0.05
0.06
0.07
0.12
0.13
0.1
0.12
0.13
0.13
0.13










Total


96.01
97.48

99.67
100.04
99.84
102.57
100.49
99.97
101.01
99.47
99.25
100.53









LOI


3.88
2.83

3.08
2.1
9.51
5.51
5.12
5.01
0.12
1.61
4.08
3.32









Mg#


0.651
0.619

0.646
0.660
0.804
0.738
0.685
0.750
0.626
0.611
0.649
0.653










V


260
311

304
286
222
383
386
328
393
333
260
302









Cr


323
218

359
365
998
753
518
995
309
240
416
678









Ni


101
86

194
223
1257
626
438
866
189
107
262
252









Cu


86
156

59
126
62
86
116
103
133
107
74
115









Zn


72
93

74
74
76
89
88
83
73
74
77
80









Rb





6.9
4.6
5.1
6.9
9.8
8.0
4.9
7.8
4.3
4.2









Sr


136
128

96
116
23
100
120
92
184
228
319
360









Y


16
24

26
26
24
27
29
26
27
26
25
26









Zr


54
62

52
55
58
83
82
67
92
93
64
60









Nb





1.0
1.2
2.3
3.7
4.4
3.5
7.6
8.3
2.4
3.6










INAA






































Na (%)
1.73
1.69
1.8

1.26
1.48
0.75
1.29
1.39
1.08
1.64
1.6
2.31
1.58

1.58
0.07
1.68
0.05

Fe (%)
6.31
6.96
7.85

8.56
8.51
8.1
9.2
8.95
8.78
8.5
7.45
7.35
6.94

8.60
0.15
8.55
0.15

Sc
44.0
42.5
50.1

41.1
39.0
22.6
32.5
36.7
30.2
38.5
37.5
35.7
37.2

31.2
0.4
31.8
1.3

Cr
349
352
217

412
441
1260
909
713
1310
386
291
514
804

296
9
289
22

Co
45.8
44.7
49.0

59.2
58.7
94.0
70.9
60.4
80.4
52.4
44.0
53.9
57.6

45.2
0.6
45
2

Ni
75
66
68

172
211
1130
574
415
844
192
85
171
275

114
20
121
2

Zn
88
85
105

96
89
71
85
80
85
81
75
94
97

104
13
105
5

La
3.86
3.83
4.1

1.48
1.85
2.21
4.75
4.86
3.8
6.8
8.4
9.64
6.57

15.5
0.3
15.8
1.3

Ce
8.63
8.80
9.25

4.43
6.66
10.3
14.4
14.7
16.9
16.8
18.9
22.8
17.7

37.9
0.7
39
4

Sm
2.42
2.36
2.58

2.33
2.44
2.23
3.94
4.15
3.2
3.86
3.45
3.58
3.33

6.28
0.13
6.2
0.3

Eu
0.96
0.93
1.01

0.97
0.97
0.77
1.30
1.42
1.12
1.31
1.26
1.22
1.24

2.04
0.05
2.06
0.08

Tb
0.55
0.47
0.52

0.57
0.46
0.43
0.80
0.74
0.56
0.76
0.48
0.63
0.52

0.93
0.10
0.96
0.08

Yb
1.71
1.75
2.33

2.03
1.94
1.53
2.32
2.32
2.06
2.06
1.89
1.78
1.82

1.84
0.04
2.02
0.20

Lu
0.25
0.25
0.31

0.28
0.26
0.21
0.34
0.34
0.26
0.31
0.25
0.26
0.25

0.24
0.01
0.291
0.026

Hf
1.76
1.61
1.85

1.62
1.59
1.50
2.77
2.64
2.28
2.93
2.88
1.94
1.69

4.59
0.17
4.38
0.22

Ta
0.20
0.21
0.20

ND
ND
0.05
0.19
0.15
0.15
0.40
0.48
0.14
0.17

1.17
0.09
1.23
0.13

Th
ND
0.26
ND


ND
ND
ND
0.21
0.19
0.26
0.66
0.86
0.41
ND

1.16
0.08
1.08
0.15

Notes: S.D. = standard deviation. Oxides in wt%, others in ppm. Mg# = Mg/(Mg + Fe), assuming 90% of Fe is ferrous. LOI = loss-on-ignition; ND = not detected (below detection limits). XRF Data for Leg 152 samples from Larsen, Saunders, Clift, et al. (1994). XRF Data from Leg 38 samples from Talwani, Udintsev, et al. (1976)

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