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Table T13 (continued).

Hole: 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138
Core, section: 83R-6 84R-1 84R-5 85R-1 85R-2 86R-1 86R-2 86R-3 87R-2 88R-1 88R-2 89R-2
Interval (cm): 22-25 3-7 98-100 106-111 120-124 42-48 113-119 148-150 110-114 82-88 126-130 120-127
Piece: 2 2 6B 12 13 2B 14 15 15 6B 9 9
Unit: 11 12 13 14 15 16 17 18 19 20 21 22
Rock type: Basalt Basalt Basalt Basalt Basalt Basalt Basalt Basalt Plagioclase-
clinopyroxene-
olivine-
phyric basalt		 Basalt Basalt Basalt
Depth (mbsf): 782.48 784.83 790.81 795.56 797.03 804.52 806.73 808.58 816.26 824.22 826.07 835.78
Major element oxides (wt%):









SiO2 49.89 47.89 49.44 48.35 48.36 47.83 47.58 48.63 47.61 46.95 46.99 48.04
TiO2 2.13 2.21 2.20 2.63 2.62 2.84 2.82 2.55 2.96 3.01 3.04 3.22
Al2O3 14.26 13.87 14.36 13.77 12.85 13.17 13.04 14.85 13.80 13.09 13.01 13.65
Fe2O3 14.18 16.35 14.73 16.13 16.57 17.42 17.89 15.94 18.01 18.84 19.21 18.18
MnO 0.26 0.28 0.24 0.34 0.31 0.33 0.32 0.19 0.32 0.31 0.32 0.29
MgO 5.83 6.29 5.71 6.03 5.85 5.48 5.48 4.54 4.90 5.03 5.07 4.85
CaO 10.22 9.27 11.18 9.88 9.47 8.97 9.05 6.79 9.48 9.60 9.68 9.88
Na2O 2.51 2.34 2.39 2.50 2.99 2.75 3.08 5.72 2.47 2.47 2.49 2.53
K2O 0.40 0.50 0.23 0.52 0.48 0.42 0.28 0.41 0.48 0.32 0.33 0.27
P2O5 0.25 0.25 0.26 0.31 0.31 0.35 0.35 0.30 0.38 0.35 0.36 0.38
Total 99.91 99.23 100.72 100.45 99.79 99.54 99.86 99.91 100.39 99.97 100.48 101.27
LOI 1.98 0.49 0.72 0.87 2.16 1.49 1.60 4.12 1.61 0.24 0.25 0.65
Mg#* 0.49 0.49 0.49 0.48 0.47 0.44 0.42 0.41 0.40 0.40 0.39 0.38
Trace elements (ppm):                    
Rb 5 5 1 5 6 14 3 8 16 2 3 2
Sr 329 205 212 206 353 186 168 116 196 203 203 202
Nb† 16 15 15 17 17 19 20 19 22 23 22 23
Zr 176 169 175 198 193 234 230 217 239 244 245 250
Y 37 33 36 42 41 49 43 39 50 44 47 49
V 428 403 422 503 445 424 446 392 442 465 467 515
Cr 79 58 62 31 31 17 20 29 22 22 20 28
Ni 44 46 41 33 35 27 28 26 24 26 26 28
Cu 140 88 155 190 166 175 160 148 190 199 187 201
Zn 111 112 117 133 131 137 139 111 145 146 136 153
Normative mineralogy:                    
Fe2+:Fe3+ = 0.8                        
Q 2.2 0.2 1.7 0.0 0.0 7.0 0.0   0.9 0.4 0.1 7.0
Or 2.3 2.8 1.3 2.9 2.7 6.6 1.6   2.7 1.8 1.9 6.6
Ab 20.5 19.1 19.3 20.2 24.3 21.5 25.0   19.9 20.0 20.0 21.5
An 25.6 25.1 26.6 23.8 19.5 23.2 20.1   24.0 22.6 22.2 23.2
Cor 0.0 0.0 0.0 0.0 0.0 0.0 0.0   0.0 0.0 0.0 0.0
Wo (Di) 9.1 7.5 10.4 8.8 9.9 7.1 8.7   7.7 8.6 8.8 7.1
En (Di) 3.9 3.2 4.5 3.8 4.3 3.1 3.7   3.3 3.7 3.8 3.1
Fs (Di 3.9 3.5 4.7 4.1 4.1 2.4 4.1   4.9 5.6 5.8 2.4
En (Hy) 10.1 11.9 9.1 10.5 7.8 9.6 7.0   8.3 8.2 8.1 9.6
Fs (Hy) 10.0 12.9 9.5 11.3 9.4 7.5 10.1   12.1 12.3 12.4 7.5
Ol (Fo) 0.0 0.0 0.0 0.0 1.3 0.0 1.6   0.0 0.0 0.0 0.0
Ol (Fa) 0.0 0.0 0.0 0.0 1.9 0.0 2.3   0.0 0.0 0.0 0.0
Ilmenite 3.9 4.1 4.0 4.8 4.8 4.7 5.1   5.4 5.5 5.5 4.7
Magnetite 8.0 9.2 8.2 9.0 9.3 6.5 10.0   10.0 10.5 10.6 6.5
Apatite 0.5 0.5 0.5 0.6 0.7 0.8 0.7   0.8 0.7 0.7 0.8
Total 99.9 99.9 99.9 99.9 99.9 99.9 99.9   99.9 99.9 99.9 99.9

Notes: * = (Mg# = Mg/[Mg+Fe2+]), where Fe2+:Fe3+ = 0.8. LOI = loss on ignition at 1025°C for 4 hr. † = analyzed Nb concentrations were adjusted using BHVO-1 as a secondary standard.

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