Table T8. Shipboard ICP-AES analyses and normative compositions of basalt samples, Site 1185.
 
192-1185A- 192-1185B-
Core, section:
8R-1
9R-2
10R-3
3R-1
4R-7
5R-2
6R-4
8R-2
11R-2
14R-3
17R-3
18R-2
20R-3
22R-6
22R-7
28R-1
Piece:
2
1
1B
16
1C
1D
2
8
5
6
1A
3
3B
6A
2
3B
Interval (cm):
15-18
14-15
51-54
94-97
44-46
135-137
74-76
73-76
28-32
38-41
1-3
17-20
66-68
51-54
42-43
80-82
Unit/Subunit:
1
2
5B
1
2
3
5
7
9
9
10
10
11
11
12
12
Depth (mbsf):
308.55
318.64
325.78
316.64
326.77
331.22
342.66
359.93
388.28
409.07
437.12
445.97
457.09
480.81
482.06
518.40
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.