Table
T8. Shipboard ICP-AES analyses and normative compositions of basalt
samples, Site 1185.
192-1185A-
192-1185B-
Major
element (wt%):
SiO2
49.25
48.80
49.09
49.19
49.75
49.34
49.64
49.18
48.42
48.59
50.74
49.35
50.51
50.73
50.20
50.63
TiO2
0.73
0.74
0.75
0.72
0.77
0.74
0.72
0.73
0.76
0.75
1.06
1.07
1.07
1.04
1.03
1.03
Al2O3
15.39
15.42
15.78
15.20
15.93
15.21
15.34
15.53
16.03
156.04
14.18
14.41
14.16
14.13
14.11
14.16
Fe2O3T
10.98
10.99
10.01
10.91
9.26
10.61
10.44
10.73
11.32
10.80
11.50
12.40
11.87
12.39
11.97
12.40
MnO
0.18
0.18
0.18
0.18
0.16
0.17
0.18
0.19
0.20
0.22
0.21
0.22
0.19
0.20
0.20
0.22
MgO
9.30
8.04
8.97
9.63
9.00
9.25
9.53
8.45
6.99
7.43
8.33
8.33
7.42
8.00
6.74
7.61
CaO
12.39
12.60
12.53
12.21
12.72
12.40
11.92
12.55
13.67
13.15
11.81
12.19
11.89
11.50
11.39
11.89
Na2O
1.51
1.78
1.75
1.43
1.85
1.71
1.69
1.86
1.85
1.87
2.09
2.06
2.11
2.08
2.05
2.04
K2O
0.18
0.28
0.08
0.12
0.09
0.07
0.03
0.23
0.71
0.16
0.08
0.07
0.06
0.07
1.00
0.08
P2O5
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.05
0.06
0.06
0.11
0.11
0.11
0.11
0.09
0.09
Total:
100.00
98.91
99.23
99.68
99.61
99.58
99.57
99.51
100.01
100.14
100.12
100.21
99.40
100.24
98.78
100.14
Mg#
0.66
0.62
0.67
0.67
0.69
0.66
0.67
0.64
0.58
0.61
0.62
0.60
0.58
0.59
0.56
0.58
LOI
-0.19
0.79
0.59
-0.28
1.22
0.69
1.31
2.54
2.46
2.26
0.59
0.48
0.19
0.79
0.59
0.48
CIPW
norms:
Q
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.6
0.0
1.4
1.0
0.0
1.1
Or
1.1
1.7
0.5
0.7
0.5
0.4
0.2
1.4
4.2
0.9
0.5
0.4
0.4
0.4
6.0
0.5
Ab
12.9
15.4
15.1
12.3
15.8
14.6
14.5
16.0
15.8
16.0
17.8
17.6
18.2
17.8
17.8
17.4
An
35.0
34.0
35.5
35.1
35.3
34.1
34.6
33.8
33.7
35.2
29.3
30.1
29.4
29.2
26.9
29.5
Di
21.6
23.9
22.0
20.8
22.6
22.5
20.1
23.6
28.2
24.7
23.7
24.7
24.4
22.6
24.9
24.1
Hy
22.7
17.2
19.6
25.4
19.4
21.5
25.4
16.4
3.8
17.3
23.6
17.8
21.6
24.5
19.5
22.8
Ol
3.1
4.2
3.8
2.0
2.9
3.3
1.7
5.3
10.6
2.3
0.0
4.8
0.0
0.0
0.4
0.0
Il
1.4
1.4
1.5
1.4
1.5
1.4
1.4
1.4
1.5
1.4
2.0
2.0
2.1
2.0
2.0
2.0
Mt
1.9
2.0
1.8
1.9
1.6
1.9
1.8
1.9
2.0
1.9
2.0
2.2
2.1
2.2
2.1
2.2
Ap
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.1
0.1
0.2
0.2
0.0
0.0
0.0
0.0
Trace
element (ppm):
Ni
181
168
160
186
192
200
230
168
176
198
108
102
104
107
84
102
Cr
457
456
418
453
448
443
511
463
487
485
190
182
177
190
183
194
V
251
242
250
238
264
242
244
254
265
258
330
318
310
311
306
312
Zr
39
36
42
39
40
41
36
41
42
43
58
57
61
56
57
56
Sc
44
43
43
43
47
43
42
43
45
44
48
49
48
48
47
48
Y
17
17
18
18
16
17
16
18
17
17
23
25
23
22
20
22
Sr
82
85
84
80
89
81
80
83
95
84
106
108
109
105
105
105
Ba
14
8
10
13
10
7
8
5
17
4
15
10
16
15
15
15
Notes: Fe2O3T = total Fe expressed as Fe2O3. Mg# and CIPW norms were calculated assuming Fe2O3/(Fe2O3 + FeO) = 0.13, or Fe2O3/FeO = 0.15. LOI = weight loss on ignition at 1100°C; all analyses were conducted on ignited samples. This table is also available in ASCII format.