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Table T2. Major and trace element compositions of crust rocks, Site C0012.

Hole: C0012G C0012G C0012G C0012G C0012F C0012G C0012G C0012G C0012G C0012E C0012G C0012G
Core, section,
interval (cm): 		15R-1,
81–84 		13R-1,
58.5–62.5 		2R-2,
119–123 		9R-1,
35–39 		1R-1,
58–62 		11R-CC,
6–12 		7R-1,
20–25 		12R-3,
12–18 		12R-1,
90–95 		12-3X-8,
68–72 		14R-3,
42–46 		3R-CC,
17–21
Depth (mbsf): 626.34 616.13 526.12 591.39 520.62 601.12 572.25 613.50 611.45 526.82 623.72 534.82
Major elements (wt%):
SiO2 50.9 49.1 53.1 49.7 49.9 52.4 50.7 48.3 50.9 51.3 50.5 48.4
Al2O3 16.2 14.8 14.8 15.1 15.7 13.5 14.9 14.4 15.0 16.1 14.4 18.5
Fe2O3 8.72 12.4 9.70 12.2 10.5 12.0 11.6 13.3 10.8 9.40 12.3 9.63
FeOt 7.84 11.13 8.73 11.02 9.49 10.82 10.45 11.95 9.74 8.45 11.09 8.67
MgO 8.82 7.61 7.45 6.40 7.95 7.20 6.38 6.69 6.06 6.40 6.88 6.52
MnO 0.15 0.28 0.26 0.37 0.55 0.21 0.24 0.32 0.29 0.34 0.26 0.24
TiO2 0.88 1.56 1.35 2.12 1.55 1.55 1.64 2.03 1.76 1.49 1.60 1.38
CaO 10.18 8.33 8.12 8.00 9.86 6.78 6.90 8.62 9.23 10.52 9.04 10.21
Na2O 3.71 2.02 2.57 3.23 3.25 2.75 7.11 2.82 3.40 3.63 3.15 4.45
K2O 0.37 3.74 2.43 2.66 0.53 3.35 0.39 3.30 2.38 0.67 1.71 0.51
P2O5 0.06 0.20 0.17 0.20 0.15 0.19 0.18 0.18 0.17 0.16 0.18 0.17
LOI 4.86 3.04 1.69 2.37 1.82 2.36 3.82 3.74 1.88 1.65 1.64 5.47
Mg# 67 55 60 51 60 54 52 50 53 57 53 57
Trace elements (ppm):
Li 21.8 12.5 11.1 21.2 11.6 12.3 20.2 19.0 21.0 9.4 19.1 14.7
Be 0.36 0.35 0.36 0.48 0.36 0.53 0.36 0.47 0.47 0.33 0.39 0.35
B 14.7 22.1 19.5 16.8 16.5 22.7 18.2 12.9 9.9 10.6 11.3 20.7
Sc 70.5 46.8 59.5 55.4 64.0 47.1 63.6 57.5 51.6 57.4 49.6 56.9
Ti 5271 9378 8071 12716 9308 9320 9842 12158 10553 8913 9569 8281
V 269 371 339 448 365 343 368 432 356 346 357 331
Cr 391 75 182 78 171 74 105 83 80 141 80 163
Co 39.7 42.8 40.4 44.3 44.3 38.5 44.5 47.2 45.7 37.2 42.5 40.1
Ni 94.8 53.6 61.9 41.0 74.7 38.6 49.2 42.4 58.7 49.5 41.2 53.0
Cu 90.9 58.6 66.9 32.6 71.3 65.4 32.7 56.1 17.0 59.4 56.4 67.6
Zn 65.8 87.0 73.8 98.2 85.9 75.6 81.0 94.7 74.8 75.8 63.1 91.7
Ga 16.1 16.0 19.9 19.4 20.0 15.6 14.6 22.6 20.7 18.6 19.0 24.3
Rb 10.4 42.9 38.6 35.5 15.9 36.6 16.3 44.3 39.1 8.5 31.8 13.8
Sr 399 520 138 531 160 155 104 732 456 165 277 467
Y 22.5 38.3 32.4 43.4 31.7 36.7 36.4 42.4 33.9 30.4 34.8 31.7
Zr 48.8 93.9 74.8 123 80.9 89.9 96.1 118 98.2 82.8 94.0 77.5
Nb 0.95 1.79 1.43 2.27 1.65 1.70 1.81 2.11 1.81 1.61 1.76 1.53
Cs 3.15 0.46 0.57 0.28 0.37 0.25 3.91 0.31 0.61 0.21 0.22 5.40
Ba 65.1 1228 892 256 70.7 1081 67.7 259 59.6 128 46.2 94.4
La 2.32 3.98 3.72 4.72 4.08 4.15 3.90 4.15 3.88 3.49 4.13 3.28
Ce 6.85 12.8 11.1 15.2 12.1 12.8 12.9 13.8 12.8 11.2 12.9 10.4
Pr 1.22 2.26 1.94 2.76 2.08 2.20 2.22 2.46 2.24 1.98 2.25 1.86
Nd 6.35 12.2 10.3 13.9 10.9 11.6 12.0 13.5 11.7 10.5 12.0 9.8
Sm 2.19 4.03 3.51 4.79 3.62 3.86 4.09 4.43 3.92 3.55 3.91 3.33
Eu 0.89 1.51 1.32 1.72 1.35 1.39 1.44 1.63 1.46 1.29 1.41 1.25
Gd 3.08 5.53 4.76 6.26 4.79 5.17 5.30 6.10 5.33 4.68 5.27 4.56
Tb 0.54 0.94 0.81 1.10 0.83 0.88 0.93 1.01 0.88 0.79 0.88 0.77
Dy 3.67 6.28 5.58 7.27 5.39 6.15 6.25 7.11 5.96 5.35 5.95 5.22
Ho 0.81 1.38 1.22 1.55 1.17 1.34 1.40 1.52 1.27 1.16 1.27 1.16
Er 2.36 4.04 3.64 4.51 3.29 3.84 4.05 4.50 3.66 3.37 3.65 3.35
Yb 2.24 3.59 3.24 4.09 2.83 3.52 3.67 4.08 3.29 3.05 3.34 3.06
Lu 0.33 0.55 0.48 0.61 0.41 0.53 0.55 0.59 0.48 0.44 0.50 0.44
Hf 1.44 2.65 2.14 3.19 2.37 2.53 2.64 3.04 2.59 2.31 2.58 2.16
Ta 0.08 0.13 0.11 0.16 0.12 0.13 0.13 0.15 0.13 0.12 0.12 0.11
Pb 0.38 0.77 0.88 0.85 2.70 1.80 0.87 1.11 2.64 3.94 1.47 1.21
Th 0.18 0.26 0.22 0.30 0.26 0.23 0.27 0.28 0.24 0.24 0.22 0.22
U 0.04 0.16 0.04 0.11 0.10 0.06 0.11 0.10 0.29 0.06 0.08 0.04

Hole: C0012F C0012G C0012G C0012G C0012G C0012G C0012G
Core, section,
interval (cm): 		2R-1,
60.5–65 		4R-CC,
25–32 		10R-2,
41–46 		14R-1,
37–41 		6R-1,
23–28 		8R-1,
84.5–89.5 		5R-1,
26–32
Depth (mbsf): 523.15 544.37 596.75 620.91 562.78 582.40 553.32
Major element (wt%):
SiO2 50.7 51.2 50.3 50.3 51.7 50.4 47.3
Al2O3 15.1 13.6 14.6 14.6 14.1 15.7 19.5
Fe2O3 10.6 12.1 11.8 12.1 11.5 10.4 9.40
FeOt 9.50 10.90 10.61 10.93 10.37 9.32 8.46
MgO 8.00 7.40 5.92 6.06 6.20 6.31 5.37
MnO 0.36 0.27 0.33 0.30 0.31 0.28 0.22
TiO2 1.51 1.93 1.90 1.87 2.10 1.91 1.41
CaO 9.30 6.61 9.65 9.72 7.67 9.55 11.92
Na2O 3.58 3.71 3.34 3.50 4.76 5.03 4.31
K2O 0.69 2.91 1.96 1.32 1.40 0.31 0.41
P2O5 0.17 0.24 0.17 0.19 0.22 0.20 0.17
LOI 2.05 2.31 1.38 1.34 2.23 3.44 6.18
Mg# 60 55 50 50 52 55 53
Trace element (ppm):
Li 17.1 22.2 22.8 20.2 21.2 23.4 11.0
Be 0.47 0.78 0.55 0.57 0.65 0.51 0.35
B 14.8 15.5 14.8 20.4 26.3 16.8 8.30
Sc 64.7 58.3 59.9 52.9 70.2 66.7 44.1
Ti 9075 11554 11393 11205 12608 11472 8441
V 360 436 395 396 428 420 309
Cr 193 110 81 81 91 114 68
Co 48.6 47.0 42.0 40.9 41.2 51.6 30.9
Ni 69.7 63.3 50.6 42.5 44.3 56.3 29.5
Cu 77.8 71.8 53.5 10.8 47.3 68.0 49.7
Zn 65.6 71.2 80.7 86.2 96.0 95.1 74.4
Ga 20.8 15.6 22.0 22.0 18.3 22.6 24.9
Rb 14.3 33.8 43.6 23.1 24.7 17.4 5.8
Sr 171 278 394 263 295 265 595
Y 32.3 43.7 38.9 41.1 46.8 38.4 30.2
Zr 83.4 113 111 108 123 103 82.0
Nb 1.65 2.06 2.03 1.99 2.25 1.96 1.56
Cs 0.47 0.39 0.59 0.26 0.71 1.93 0.11
Ba 506 776 148 39.8 180 58.3 56.6
La 3.81 5.11 4.50 4.47 5.79 4.16 3.11
Ce 11.4 15.8 14.7 14.0 17.0 13.5 10.4
Pr 2.13 2.76 2.58 2.47 2.95 2.40 1.86
Nd 11.1 14.1 13.4 13.3 15.5 12.9 10.3
Sm 3.61 4.68 4.45 4.31 4.97 4.34 3.39
Eu 1.36 1.67 1.59 1.55 1.80 1.57 1.21
Gd 4.79 6.07 5.79 5.82 6.61 5.57 4.60
Tb 0.83 1.04 0.99 0.98 1.10 0.97 0.76
Dy 5.64 6.93 6.85 6.67 7.54 6.66 5.10
Ho 1.22 1.53 1.46 1.47 1.65 1.44 1.12
Er 3.58 4.31 4.34 4.22 4.82 4.11 3.19
Yb 3.34 4.24 4.06 3.99 4.44 3.90 2.92
Lu 0.51 0.65 0.61 0.60 0.67 0.57 0.42
Hf 2.38 2.89 3.02 2.86 3.17 2.83 2.21
Ta 0.12 0.15 0.15 0.14 0.16 0.14 0.11
Pb 1.31 4.18 1.93 0.54 1.37 0.59 1.33
Th 0.24 0.28 0.27 0.26 0.31 0.28 0.22
U 0.06 0.08 0.31 0.11 0.12 0.12 0.05

LOI = loss on ignition (wt%), Mg# = 100 × Mg/(Mg + Fe).

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