183 Initial Reports "Chapter 7, Table T11. X-ray fluorescence analyses of major and trace elements for Site 1139 igneous units." "Notes: * = determined using Mg# = MgO/(MgO+Fe), mol%, with FeO calculated (as 80% of total Fe). ** = loss on ignition at 1025 degrees C for 4hr." Hole: 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A 1139A "Core, section:" 51R-1 56R-3 57R-1 60R-2 61R-1 62R-2 64R-1 64R-4 65R-2 65R-3 65R-5 66R-3 66R-7 67R-5 68R-4 68R-6 69R-2 70R-1 70R-2 71R-4 71R-7 72R-2 73R-3 Interval (cm): 0-3 92-95 124-127 114-119 78-81 110-112 81-84 78-82 15-19 90-93 81-85 44-47 12-Aug 105-108 42-45 54-57 4-Jan 17-20 141-145 135-138 25-27 57-60 39-42 Piece: 21 15 1F 1 13B 3F 1A 5C 1D 1B 3 9 1 1 1 2A 1F 1I 1B 2B 2B Unit: 1 3 4 5 5 6 7 8 9 10 11 12 13 14 15 16 17 18 18 19 19 19 19 Highly "altered," Sanidine-quartz crystalvitric phyric Feldspar-phyric Feldspar-phyric Aphyric Aphyricbasaltic Aphyric Aphyric Sparsely plagioclase- Aphyric Aphyric Aphyric Basaltic Plagioclase-phyric basaltic Aphyric basaltic Plagioclase-phyric basaltic Sanidine-phyric Sanidine-phyric Sanidine-phyric Sanidine-phyric Sanidine-phyric Sanidine-phyric Rock type: Rhyolite tuff-breccia rhyolite trachyte trachyte trachybasalt trachyandesite trachybasalt trachybasalt phyric trachybasalt trachybasalt trachybasalt trachybasalt trachyandesite trachyandesite trachyandesite trachyandesite trachyandesite trachyandesite (altered) trachyte trachyte trachyte trachyte Depth (mbsf): 479.5 531.06 538.14 568.22 575.98 586.83 605.01 609.42 615.35 Major element oxides (wt%): SiO2 73.45 69.51 79.58 67.10 66.56 50.57 53.59 49.09 50.17 46.78 50.37 49.67 46.78 52.22 51.77 52.51 52.76 59.46 61.68 67.86 70.68 70.00 68.44 TiO2 0.41 0.53 0.34 0.56 0.57 3.15 2.67 3.89 4.18 4.37 3.82 3.86 4.23 2.60 3.84 3.37 3.03 1.02 1.00 0.50 0.50 0.49 0.54 Al2O3 10.24 15.92 8.36 16.30 16.38 18.62 17.45 14.89 16.64 16.81 15.87 14.72 16.93 16.73 18.03 17.50 15.89 18.59 15.95 13.30 14.24 13.67 14.29 Fe2O3 6.03 5.24 3.67 5.36 4.37 16.99 10.60 14.14 13.43 12.53 12.97 12.76 13.13 12.36 11.29 13.81 11.79 10.57 11.36 10.10 3.84 5.94 6.88 MnO 0.07 0.06 0.06 0.22 0.27 0.16 0.30 0.26 0.28 0.51 0.21 0.20 0.28 0.25 0.18 0.13 0.20 0.11 0.29 0.15 0.11 0.16 0.23 MgO 0.10 4.21 0.00 0.05 0.08 1.36 1.09 4.33 2.34 1.08 3.00 3.81 0.89 0.87 0.58 1.76 2.37 0.76 0.51 0.83 0.09 0.14 0.14 CaO 0.00 0.00 0.00 0.00 0.00 2.55 5.85 7.67 6.41 10.70 6.79 8.47 9.84 6.37 5.28 3.57 6.69 0.02 0.00 0.28 0.36 0.00 0.00 Na2O 3.32 2.75 2.58 4.91 4.31 2.27 4.36 3.17 3.67 3.41 3.72 3.20 3.65 4.20 4.14 3.19 3.69 3.36 2.96 2.39 3.64 3.55 3.29 K2O 6.50 2.04 4.34 6.02 5.98 4.13 3.68 2.31 2.75 2.51 2.77 2.44 2.94 3.85 4.01 3.75 3.12 5.41 3.90 5.01 6.57 6.48 5.25 P2O5 0.03 0.00 0.00 0.01 0.00 1.50 1.09 1.05 1.44 1.12 1.77 1.67 1.39 1.13 1.64 1.55 1.30 0.01 0.17 0.03 0.01 0.00 0.00 Total 100.14 100.24 98.91 100.50 98.50 101.29 100.66 100.77 101.28 99.80 101.27 100.77 100.05 100.56 100.74 101.11 100.82 99.30 97.81 100.42 100.04 100.42 99.05 Mg#* 0.02 0.53 0.00 0.01 0.02 0.10 0.12 0.30 0.19 0.11 0.24 0.29 0.08 0.09 0.07 0.15 0.22 0.09 0.06 0.10 0.03 0.03 0.03 LOI** 0.93 5.66 0.17 1.73 2.04 3.73 4.38 2.69 4.38 7.86 1.25 2.40 8.36 6.22 3.41 2.44 2.53 1.89 7.02 6.02 1.87 2.65 3.21 CO2 1.20 7.30 0.70 2.60 1.80 4.20 5.80 3.50 5.30 8.20 2.80 3.20 8.70 6.50 3.90 2.70 2.90 2.30 7.90 7.30 2.10 2.90 3.80 H2O 1.10 7.20 0.60 0.60 0.00 4.20 1.40 1.90 1.70 1.30 1.10 1.40 1.00 0.90 1.00 2.60 1.40 2.20 1.50 1.70 0.80 0.90 0.80 Trace elements (ppm): Rb 221 22 139 93 70 47 47 34 41 38 43 35 35 50 57 59 50 41 42 87 146 139 116 Ba 49 40 66 79 75 791 1570 757 923 846 1061 939 1150 2286 1092 997 1015 290 268 123 130 118 69 Sr 7 34 0 4 3 113 451 421 466 474 499 467 461 488 481 326 460 23 9 25 12 8 9 Nb 259 311 142 107 108 49 45 36 41 38 44 39 39 44 49 52 46 84 65 166 189 182 161 Zr 1678 213 903 629 388 343 367 292 332 292 345 295 256 354 343 420 387 521 420 1131 1467 1372 1104 Y 106 59 42 58 56 45 45 38 40 43 50 46 40 46 42 51 46 54 49 50 49 156 296 V 98 14 19 19 19 99 138 350 338 424 254 274 326 95 275 175 175 13 13 15 20 19 17 Cr 23 18 25 24 26 13 24 21 9 28 10 7 13 6 25 18 23 17 13 12 20 18 13 Ni 11 2 1 3 3 3 4 12 7 13 7 4 7 3 2 3 3 2 1 1 2 3 3 Cu 5 6 6 Zn 252 555 105 146 366 212 125 119 127 148 140 137 319 131 149 142 133 209 207 212 76 164 221 Normative mineralogy: 28 21.9 21.4 26 Q 31.0 36.7 47.4 12.9 16.7 11.6 0.3 1.3 1.0 1.4 1.5 8.5 2.6 13.4 23.9 29.7 38.9 38.3 31.5 Or 38.5 12.0 26.0 35.5 35.9 24.4 21.7 13.7 16.2 15.0 16.3 14.4 17.5 22.8 23.7 22.1 18.4 32.4 23.7 20.3 30.8 30.0 28.2 Ab 16.6 23.7 19.1 41.3 37.1 19.2 36.9 26.9 31.1 23.3 31.2 27.1 23.3 35.4 35.1 27.4 31.2 28.9 25.8 1.2 1.7 An 2.8 17.2 19.7 20.7 23.4 18.5 18.7 21.5 15.7 15.6 7.6 17.6 3.5 0.5 0.8 3.3 Corundum 9.1 1.7 2.9 9.4 1.2 5.3 7.3 7.1 Nepheline 3.2 4.2 Leucite Acmite 3.5 2.2 Na Metasilicate 1.8 0.2 Wo (Di) 1.9 4.8 0.7 9.6 1.5 5.2 7.8 3.6 3.0 En (Di) 0.5 2.4 0.3 2.5 0.7 2.7 1.6 0.7 1.2 Fs (Di) 1.6 2.3 0.4 7.6 0.8 2.5 6.7 3.2 1.8 2.1 0.1 0.3 0.4 En (Hy) 0.2 10.6 0.2 0.2 3.4 2.2 7.8 5.5 6.8 6.8 0.5 1.4 4.4 4.7 1.9 1.3 11.2 3.8 6.4 7.6 Fs (Hy) 7.4 5.3 4.5 5.7 4.7 14.8 6.9 7.5 8.7 8.2 6.3 2.2 7.1 10.7 7.2 10.9 12.4 Ol (Fo) 0.4 0.2 0.4 0.7 Ol (Fa) 0.5 0.5 1.6 3.9 0.9 1.0 0.9 1.0 Ilmenite 0.8 1.0 0.6 1.1 1.1 6.0 5.1 7.4 7.9 8.4 7.2 7.4 8.1 5.0 7.3 6.4 5.8 2.0 2.0 2.9 1.1 1.7 2.0 Magnetite 1.5 1.6 1.3 4.9 3.1 4.1 3.9 3.7 3.7 3.7 3.9 3.6 3.3 4.0 3.4 3.1 3.4 0.1 Apatite 3.3 2.4 2.3 3.1 2.5 3.9 3.6 3.1 2.5 3.6 3.4 2.8 0.4 99.9 99.9 99.9 99.9 Total: 99.9 99.9 99.9 99.9 99.9 99.8 99.8 99.8 99.8 99.8 99.7 99.7 99.8 99.8 99.7 99.7 99.8 99.9 99.9 28.0