183 Initial Reports Chapter 6, Table T13. X-ray fluorescence analyses of major and trace elements for Site 1138 igneous units. Notes: * = (Mg# = Mg/[Mg+Fe2+]), where Fe2+:Fe3+ = 0.8. LOI = loss on ignition at 1025 degrees C for 4 hr. ** = analyzed Nb concentrations were adjusted using BHVO-1 as a secondary standard. Hole: 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 1138 Core, section: 74R-1 74R-1 78R-3 80R-1 80R-3 80R-5 81R-2 81R-5 82R-1 82R-5 83R-4 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): 13-16 24-30 50-54 53-56 19-23 17-20 23-25 5-Feb 127-131 69-72 33-37 22-25 7-Mar 98-100 106-111 120-124 42-48 113-119 148-150 110-114 82-88 126-130 120-127 Piece: 1 4 - 8 2 3 1B 1A 12 6B 2 2 2 6B 12 13 2B 14 15 15 6B 9 9 Unit: 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Pumice lithic Plagioclase- Plagioclase- Plagioclase- Rock type: Dacite Dacite breccia phyric basalt phyric basalt Basalt Basalt phyric basalt Basalt Basalt Basalt Basalt Basalt Basalt Basalt Basalt Basalt Basalt Basalt Plagioclase-clinopyroxene-olivine-phyric basalt Basalt Basalt Basalt Depth (mbsf): 698.23 698.34 730.5 746.83 749.39 752.21 757.54 761.38 766.87 772.23 779.84 782.48 784.83 790.81 795.56 797.03 804.52 806.73 808.58 816.26 824.22 826.07 835.78 Major element oxides (wt%): SiO2 63.97 63.85 68.06 49.45 48.67 48.89 47.91 47.95 48.19 48.75 48.44 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 1.57 1.53 0.52 1.92 2.11 2.17 2.14 2.02 2.27 2.18 2.19 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 14.77 14.76 15.11 16.76 15.30 15.81 15.73 14.70 14.42 15.72 14.38 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 9.40 9.33 5.13 12.07 13.46 11.93 13.54 14.01 14.47 11.90 14.88 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 0.04 0.04 0.05 0.26 0.30 0.22 0.28 0.34 0.35 0.22 0.26 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 0.34 0.25 1.32 5.21 6.40 6.03 6.38 6.96 6.46 6.05 5.72 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 3.43 3.58 0.86 11.59 10.69 11.62 10.92 9.93 10.55 11.58 11.05 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 3.40 3.53 2.62 2.33 2.45 2.38 2.20 2.15 2.31 2.48 2.41 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 2.65 2.70 6.92 0.22 0.24 0.23 0.38 1.07 0.37 0.23 0.26 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 0.59 0.58 0.02 0.19 0.22 0.21 0.22 0.20 0.26 0.21 0.26 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: 100.13 100.13 100.58 99.96 99.84 99.48 99.68 99.31 99.62 99.31 99.84 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 2.25 1.69 2.52 1.09 0.49 0.43 1.04 0.80 0.18 0.89 0.41 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#* 0.08 0.06 0.39 0.52 0.54 0.56 0.52 0.55 0.52 0.56 0.49 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 69 73 187 3 4 2 5 12 3 11 2 5 5 1 5 6 14 3 8 16 2 3 2 Sr 182 198 173 243 227 244 211 193 207 206 210 329 205 212 206 353 186 168 116 196 203 203 202 Nb** 51 48 116 11 14 13 13 12 15 15 16 16 15 15 17 17 19 20 19 22 23 22 23 Zr 673 711 1016 130 147 137 135 129 164 157 176 176 169 175 198 193 234 230 217 239 244 245 250 Y 67 73 39 33 33 31 32 29 38 35 37 37 33 36 42 41 49 43 39 50 44 47 49 V 36 46 21 385 413 452 417 401 460 390 401 428 403 422 503 445 424 446 392 442 465 467 515 Cr 10 2 11 88 80 113 88 78 100 56 72 79 58 62 31 31 17 20 29 22 22 20 28 Ni 6 9 22 57 53 61 57 56 50 46 42 44 46 41 33 35 27 28 26 24 26 26 28 Cu 29 35 9 120 124 119 194 114 170 154 170 140 88 155 190 166 175 160 148 190 199 187 201 Zn 147 143 115 96 108 110 104 106 125 111 116 111 112 117 133 131 137 139 111 145 146 136 153 Normative mineralogy: Fe2+:Fe3+ = 0.8 Q 24.2 22.0 19.7 2.1 0.1 1.0 0.0 7.0 0.1 0.4 0.6 2.2 0.2 1.7 0.0 0.0 7.0 0.0 0.9 0.4 0.1 7.0 Or 15.7 15.6 40.1 1.2 1.4 1.3 2.1 6.6 2.1 1.3 1.5 2.3 2.8 1.3 2.9 2.7 6.6 1.6 2.7 1.8 1.9 6.6 Ab 28.9 29.1 21.7 19.1 20.1 19.6 18.1 21.5 18.9 20.5 19.7 20.5 19.1 19.3 20.2 24.3 21.5 25.0 19.9 20.0 20.0 21.5 An 13.2 13.6 4.0 33.6 29.1 31.0 31.0 23.2 27.0 30.4 26.7 25.6 25.1 26.6 23.8 19.5 23.2 20.1 24.0 22.6 22.2 23.2 Cor 1.5 0.9 1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Wo (Di) 0.0 0.0 0.0 8.7 8.7 10.0 8.4 7.1 9.2 10.2 10.3 9.1 7.5 10.4 8.8 9.9 7.1 8.7 7.7 8.6 8.8 7.1 En (Di) 0.0 0.0 0.0 3.8 3.8 4.3 3.6 3.1 4.0 4.4 4.4 3.9 3.2 4.5 3.8 4.3 3.1 3.7 3.3 3.7 3.8 3.1 Fs (Di 0.0 0.0 0.0 3.5 3.2 3.3 3.0 2.4 3.6 3.3 4.7 3.9 3.5 4.7 4.1 4.1 2.4 4.1 4.9 5.6 5.8 2.4 En (Hy) 0.8 0.6 3.2 8.8 11.6 10.3 11.3 9.6 11.6 10.3 9.3 10.1 11.9 9.1 10.5 7.8 9.6 7.0 8.3 8.2 8.1 9.6 Fs (Hy) 8.4 8.8 5.4 8.2 9.9 7.9 9.6 7.5 10.5 7.8 9.9 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 0.0 0.0 0.3 0.0 0.0 0.0 0.0 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 0.0 0.0 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.9 0.0 2.3 0.0 0.0 0.0 0.0 Ilmenite 3.0 2.8 1.0 3.5 3.9 4.0 4.0 4.7 4.2 4.0 4.0 3.9 4.1 4.0 4.8 4.8 4.7 5.1 5.4 5.5 5.5 4.7 Magnetite 2.7 5.3 2.9 6.8 7.6 6.8 7.6 6.5 8.1 6.8 8.4 8.0 9.2 8.2 9.0 9.3 6.5 10.0 10.0 10.5 10.6 6.5 Apatite 1.3 1.2 0.0 0.4 0.5 0.4 0.5 0.8 0.5 0.4 0.5 0.5 0.5 0.5 0.6 0.7 0.8 0.7 0.8 0.7 0.7 0.8 Total: 99.8 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9