Table
T11. Geochemical data for whole-rock samples analyzed by
shipboard ICP-AES, Hole 1183A.
192-1183A-
Core,
section:
54R-3
55R-2
55R-3
55R-4
58R-3
59R-1
60R-1
64R-2
64R-2
65R-3
67R-3
Piece:
5
1A
5B
4
13
7C
19
2
10B
2
16
Interval
(cm):
125-127
12-15
128-129
38-39
109-112
107-109
139-141
15-17
136-138
18-19
119-121
Unit/Subunit:
1
3B
4B
4B
5B
5B
6
6
7
7
7
Depth (mbsf):
1130.42
1137.87
1140.42
1140.91
1159.7
1161.67
1167.89
1192.15
1193.36
1198.34
1209.02
Major
element (wt%):
SiO2
49.66
49.62
50.34
49.49
49.10
49.95
50.00
50.70
49.87
47.92
49.39
TiO2
1.20
1.11
1.21
1.08
1.12
1.09
1.12
1.08
1.08
1.09
1.10
Al2O3
15.54
14.39
15.57
13.81
14.58
14.21
14.33
14.39
13.81
14.75
14.27
Fe2O3T
10.92
12.15
9.73
13.69
11.91
12.50
12.58
12.40
13.52
12.11
12.26
MnO
0.16
0.19
0.19
0.24
0.22
0.20
0.23
0.20
0.22
0.22
0.24
MgO
7.35
7.22
8.40
7.31
7.68
7.64
7.94
7.78
7.35
7.50
7.76
CaO
11.63
11.63
11.82
11.70
12.30
12.15
12.36
11.97
11.76
12.46
12.38
Na2O
2.38
2.19
2.30
2.00
2.15
2.15
2.10
2.07
2.03
2.15
2.10
K2O
0.43
0.58
0.07
0.46
0.10
BD
0.09
0.10
0.51
BD
0.14
P2O5
0.11
0.12
0.12
0.09
BD
BD
BD
BD
0.11
0.17
BD
Total:
99.37
99.18
99.74
99.87
99.16
99.89
100.73
100.69
100.27
98.37
99.64
LOI
2.38
2.18
1.75
0.09
0.30
-0.59
0.09
0.57
0.19
0.29
0.19
Mg#
0.60
0.57
0.66
0.54
0.59
0.58
0.60
0.59
0.55
0.59
0.60
CIPW
norms:
Q
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.5
0.0
0.0
0.0
Or
2.6
3.5
0.4
2.7
0.6
0.1
0.5
0.6
3.1
0.1
0.8
Ab
20.4
18.8
19.7
17.1
18.5
18.4
17.8
17.5
17.3
18.7
18.0
An
30.9
28.2
32.3
27.7
30.4
29.4
29.5
29.8
27.3
31.4
29.5
Di
22.0
24.4
21.2
25.2
25.9
25.8
26.2
24.4
25.4
24.4
26.7
Hy
14.9
17.1
20.7
19.7
16.0
20.9
18.6
22.8
19.7
13.0
16.5
Ol
4.5
3.3
1.3
2.7
4.2
0.9
3.0
0.0
2.4
6.6
3.9
Il
2.3
2.2
2.3
2.1
2.2
2.1
2.1
2.1
2.1
2.1
2.1
Mt
1.9
2.2
1.7
2.4
2.1
2.2
2.2
2.2
2.4
2.2
2.2
Ap
0.2
0.3
0.3
0.2
0.0
0.0
0.0
0.0
0.2
0.4
0.0
Trace
element (ppm):
Ni
112
88
117
93
108
Cr
215
203
215
198
201
198
197
193
19
219
196
V
343
324
353
317
326
316
322
315
313
331
319
Sc
53
48
55
48
49
50
50
49
48
49
49
Zr
65
56
66
69
68
61
60
57
58
66
59
Y
25
23
23
24
25
24
24
24
24
22
27
Sr
143
124
141
113
120
114
119
113
109
119
115
Ba
10
9
9
10
10
13
12
17
12
12
13
Notes: All analyses were conducted on ignited samples. Fe2O3T = total Fe expressed as Fe2O3. LOI = weight loss on ignition at 1100ēC. BD = below detection limit (0.01% is assumed for norm calculations). Mg# and CIPW norms were calculated assuming 12% of the total iron is Fe3+, which is equivalent to Fe2O3/(Fe2O3 + FeO) = 0.13 or Fe2O3/FeO = 0.15. = not determined. This table is also available in ASCII format.