Initial Reports, Volume 197 Ms 197-106 Chapter 6, Table 8. Whole-rock major and trace element abundances in basement rocks determined by ICP-AES, Site 1206. Notes: * = See Table 3 for Eruption unit information. LOI = loss on ignition at 1025 degrees C for 4 hr. Mg# = MgO/(MgO+FeO), in molar percent, with FeO calculated (as 90% of total Fe). in all figures these data are renormalized to 100% in order to correct for variable LOI. Core, section, piece, interval (cm): 3R-2 (8, 94-96) 4R-3 (4A, 72-74) 7R-1 (21, 123-125) 8R-1 (1, 2-3) 8R-1 (24, 99-101) 8R-2 (1, 3-5) 15R-1 (7A, 72-74) 16R-4 (8, 80-82) 16R-5 (8, 66-67) 17R-2 (6, 74-76) 18R-1 (4, 80-83) 19R-3 (4B, 46-48) 21R-5 (9, 66-68) 24R-3 (2, 10-12) 28R-1 (17C, 100-102) 31R-1 (11, 60-63) 32R-2 (26, 136-137) 38R-1 (2B, 55-58) 41R-1 (5A, 22-24) 42R-2 (3, 76-78) Lithostratigraphic Unit: 1 1 2C 4 4 4 5 6 6 6 6 7 8I 10 11 13 14 17 18B 21 Eruption Unit*: I I I II II II III IV IV IV IV V V VI VI VI VII VIII IX X Rock type: Sparsely to moderately olivine-phyric basalt Sparsely to moderately olivine-phyric basalt Hyaloclastite olivine-basalt breccia Sparsely to highly olivine-phyric basalt Sparsely to highly olivine-phyric basalt Sparsely to highly olivine-phyric basalt Moderately olivine-plagioclase-phyric basalt Moderately to highly olivine-phyric basalt Moderately to highly olivine-phyric basalt Moderately to highly olivine-phyric basalt Moderately to highly olivine-phyric basalt Aphyric to moderately olivine-phyric basalt Hyaloclastite olivine basalt breccia and moderately olivine-phyric basalt Aphyric to sparsely olivine-phyric basalt Hyaloclastite basalt breccia and aphyric to sparsely olivine-phyric basalt Calcareous lithic-vitric sandstone Hyaloclastite basalt breccia and sparsely olivine-phyric basalt Hyaloclastite basalt breccia and sparsely olivine-phyric basalt Aphyric basalt Sparsely phyric basalt Depth (mbsf): 60.84 69.56 85.93 90.42 91.39 91.93 128.92 138.29 139.60 145.04 153.20 157.26 178.39 195.80 225.00 249.50 261.36 297.45 311.32 318.03 Major element oxide (wt%): SiO2 48.43 50.15 47.10 49.90 47.18 46.44 48.94 47.11 46.38 47.25 45.25 48.91 47.28 50.07 48.32 49.01 46.64 46.28 48.37 49.06 TiO2 2.32 1.88 2.14 2.16 2.35 2.21 2.35 2.82 2.80 2.56 1.92 2.71 3.14 2.44 2.99 2.53 2.33 1.86 2.84 2.09 Al2O3 14.36 13.14 14.26 14.78 15.72 14.13 13.74 14.69 13.69 12.82 10.80 14.39 17.17 14.57 15.08 15.41 15.36 10.64 15.49 13.75 Fe2O3 13.25 13.64 12.20 11.42 13.60 14.20 12.96 12.15 12.83 13.67 10.87 13.19 10.31 14.16 10.51 10.59 10.65 12.15 11.97 12.82 MnO 0.14 0.17 0.23 0.10 0.09 0.11 0.17 0.15 0.12 0.16 0.17 0.18 0.23 0.18 0.31 0.12 0.26 0.16 0.17 0.16 MgO 7.47 10.61 7.83 8.08 7.10 7.99 7.84 7.56 8.11 9.60 14.76 7.54 7.32 6.64 6.63 7.40 8.09 17.27 6.26 7.33 CaO 8.99 8.06 10.05 8.53 7.19 6.53 10.53 10.65 8.48 9.28 8.63 10.91 6.80 10.38 9.10 8.35 10.28 7.25 9.69 9.84 Na2O 3.24 2.73 3.06 2.95 3.20 2.54 2.44 2.70 2.70 2.44 1.56 2.55 3.36 2.70 2.84 2.88 2.75 1.70 3.03 2.45 K2O 0.27 0.30 0.35 0.54 0.78 0.88 0.31 0.35 0.67 0.26 0.13 0.31 0.54 0.31 0.55 0.64 0.43 0.20 0.95 0.20 P2O5 0.30 0.21 0.35 0.19 0.20 0.15 0.25 0.35 0.37 0.29 0.21 0.26 0.39 0.24 0.40 0.25 0.33 0.17 0.39 0.21 Totals 98.77 100.89 97.58 98.64 97.42 95.17 99.53 98.52 96.14 98.33 1.69 100.95 96.54 101.67 96.73 97.19 97.13 97.69 99.17 97.91 LOI 1.67 2.39 2.96 1.96 2.93 4.85 0.01 0.95 3.81 1.59 94.30 0.65 3.66 -0.24 3.35 1.98 2.41 3.23 -0.32 0.34 Mg# 0.55 0.63 0.59 0.61 0.53 0.55 0.57 0.58 0.58 0.61 5.25 0.56 0.61 0.51 0.58 0.61 0.63 0.76 0.53 0.56 Trace element (ppm): Sr 287 237 364 274 255 158 331 376 378 356 204 363 395 311 351 327 331 198 357 294 Ba 86.7 76.9 73.5 56.1 59.6 44.6 88.3 47.4 57.5 71.2 35.3 90.3 48.0 51.8 44.4 80.5 44.7 93.0 102 069 Sc 28.2 25.1 28.1 29.6 33.6 32.8 31.7 32.1 30.4 28.4 27.5 34.2 35.3 29.4 32.8 35.3 31.0 25.0 30.2 27.0 V 342 287 318 301 304 289 295 335 342 291 241 337 380 332 342 324 296 244 314 263 Cr 300 435 411 401 419 388 355 330 526 583 768 303 335 260 238 304 308 743 235 277 Co 52.0 59.2 49.2 51.2 44.8 54.5 54.9 58.7 64.4 56.5 61.1 61.8 63.3 64.7 79.3 57.7 56.1 69.5 61.4 62.2 Ni 161 307 199 135 119 134 136 142 237 220 574 115 95.3 84.5 90.8 95.7 120 670 79.9 82.8 Cu 34.3 80.9 97.8 117 158 145 189 84.9 50.1 95.8 131 52.6 111 95.5 132 103 119 67.3 217 111 Zn 148 126 191 117 142 121 121 150 250 122 128 120 146 119 225 181 151 120 159 304 Y 32.6 27.1 37.4 24.5 25.1 21.7 28.9 30.7 29.6 25.9 19.2 27.8 32.5 27.5 34.3 22.2 28.0 23.4 36.0 29.8 Zr 168 142 155 128 136 128 152 150 250 173 128 163 206 145 225 181 151 120 159 304