Table T5. Major and trace element compositions of rocks, Hole 1274A.
Core, section, interval (cm)
Depth (mbsf)
Piece
Unit
Lithology
Major element oxides (wt%)
LOI
Volatiles (wt%)
SiO2
TiO2
Al2O3
Fe2O3
MgO
MnO
CaO
Na2O
K2O
Total
CO2
H2O
209-1274A-
















3R-1, 87–89 17.77 9B I Harzburgite 43.92 0.01 0.70 8.57 44.31 0.13 0.65 <0.03 <0.01 98.31 10.44 0.34 10.99
5R-1, 121–125 27.51 10B I Harzburgite 43.18 0.01 0.80 8.53 45.74 0.12 0.49 0.04 <0.01 98.90 12.14 0.35 14.52
7R-1, 48–54 36.28 5 I Harzburgite 43.75 0.01 0.66 8.51 44.42 0.12 0.72 <0.03 <0.01 98.22 10.19 0.37 11.95
8R-1, 108–111 41.08 15C I Dunite 40.85 0.01 0.16 8.94 48.11 0.12 0.45 <0.03 0.01 98.66 13.72 0.36 15.49
11R-1, 75–79 55.65 12B I Harzburgite 44.44 0.01 0.75 8.30 44.99 0.12 0.73 <0.03 <0.01 99.37 12.69 0.40 14.18
15R-1, 101–104 75.01 15 I Dunite 41.78 0.01 0.31 8.93 46.78 0.12 0.21 0.03 <0.01 98.17 15.47 0.38 16.47
17R-2, 16–19 89.91 1B I Harzburgite 44.91 0.01 0.91 8.43 45.39 0.12 0.37 0.03 <0.01 100.16 13.37 0.36 14.85
20R-1, 141–144 104.31 26 II Dunite 40.86 0.01 0.16 10.36 47.85 0.12 <0.06 0.04 <0.01 99.41 14.74 0.32 16.24
23R-2, 0–3 127.45 1 II Mud 45.16 0.02 0.94 8.42 44.43 0.10 <0.06 0.14 0.02 99.27 14.56 0.31 15.28
23R-2, 67–70 128.12 1 II Mud 44.02 0.15 1.54 9.20 43.78 0.15 0.78 0.23 0.02 99.87 14.16 0.66 15.30
27R-1, 78–83 146.88 7 III Harzburgite 44.41 0.01 0.77 8.36 45.01 0.11 0.46 <0.03 <0.01 99.14 12.41 0.29 13.68
Core, section, interval (cm)
Depth (mbsf)
Piece
Unit
Lithology
Trace elements (ppm)
S
Cr
Ni
Ba
Sr
V
Y
Zr
Sc
Co
209-1274A-













3R-1, 87–89 17.77 9B I Harzburgite <350 2072 2417 <39 <5 33 <2 3 8.5 114
5R-1, 121–125 27.51 10B I Harzburgite <350 2302 2388 <39 <5 33 <2 <2 8.3 114
7R-1, 48–54 36.28 5 I Harzburgite <350 2038 2390 <39 <5 32 <2 4 8.4 114
8R-1, 108–111 41.08 15C I Dunite <350 1230 2697 <39 <5 14 4 2 5.1 127
11R-1, 75–79 55.65 12B I Harzburgite <350 2801 2346 <39 <5 35 <2 <2 8.7 107
15R-1, 101–104 75.01 15 I Dunite <350 2234 2548 <39 <5 19 <2 2 6.1 123
17R-2, 16–19 89.91 1B I Harzburgite <350 2665 2456 <39 <5 31 <2 <2 7.6 112
20R-1, 141–144 104.31 26 II Dunite 638 1908 2688 <39 <5 15 <2 <2 3.8 126
23R-2, 0–3 127.45 1 II Mud 672 2644 2413 <39 <5 36 3 10 8.7 106
23R-2, 67–70 128.12 1 II Mud 3268 2683 2258 <39 <5 51 5 10 9.1 112
27R-1, 78–83 146.88 7 III Harzburgite <350 2493 2519 157 <5 29 <2 <2 7.4 116

Note: This table is also available in ASCII.