Initial Reports, Volume 197 Ms 197-104 Chapter 4, Table T7. ICP-AES whole-rock major and trace element abundance data for basalts, Holes 1204A and 1204B. Notes: 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. Hole, core, section, piece, interval (cm) 1204A-7R-3 (3, 36-37) 1204A-9R-1 (12B, 96-97) 1204A-9R-2 (5, 50-51) 1204A-10R-2 (5, 77-79) 1204A-10R-3 (2, 54-56) 1204B-2R-2 (1B, 48-50) 1204B-2R-4 (2B, 87-89) 1204B-4R-3 (5, 29-31) 1204B-6R-4 (4, 21-24) 1204B-7R-2 (10, 66-69) 1204B-7R-3 (5A, 42-44) 1204B-7R-3 (5A, 140-142) 1204B-8R-3 (8, 53-55) 1204B-9R-2 (1B, 22-24) 1204B-10R-3 (2A 25-27) 1204B-13R-2 (1, 10-12) 1204B-13R-3 (1A, 32-34) 1204B-14R-2 (5, 115-117) 1204B-14R-3 (14, 68-70) 1204B-15R-1 (9, 131-133) 1204B-17R-1 (13, 89-90) Unit 2 2 2 2 2 1 1 2A 2A 2A 2A 2B 2B 2B 2B 2B 2B 2C 2C 2C 3 Rock type Aphyric basalt (lobed) Aphyric basalt (lobed) Aphyric basalt (lobed) Aphyric basalt (lobed) Aphyric basalt (lobed) Aphyric basalt (lobed) Aphyric basalt (lobed) Aphyric basalt (lobed) Aphyric basalt (lobed) Aphyric basalt (lobed) Aphyric basalt (lobed) Diabase (massive) Diabase (massive) Diabase (massive) Diabase (massive) Diabase (massive) Diabase (massive) Aphyric basalt (lobed) Aphyric basalt (lobed) Aphyric basalt (lobed) Aphyric basalt (lobed) Depth (mbsf) 822.68 839.56 840.60 850.54 851.45 822.08 824.67 842.89 863.24 870.33 871.6 872.57 881.29 887.51 891.80 909.87 911.48 918.17 919.20 926.91 945.79 Major element oxide (wt%): SiO2 38.39 43.76 43.76 45.62 45.37 43.60 45.44 43.57 39.86 41.38 44.34 43.67 45.98 45.64 43.43 44.97 46.47 44.75 45.48 45.20 46.06 TiO2 2.03 2.15 1.98 2.31 2.12 2.30 2.54 2.37 2.26 2.25 2.32 2.26 1.95 2.17 2.14 2.23 2.28 2.26 2.06 2.17 2.52 Al2O3 13.63 14.89 14.75 14.69 15.36 16.33 17.44 16.89 13.81 14.43 14.90 14.65 15.16 15.23 15.41 14.62 14.29 15.73 15.70 15.33 14.01 Fe2O3 10.51 16.07 12.74 14.46 13.84 12.52 15.44 15.02 11.43 12.15 12.30 11.20 14.07 13.77 13.31 13.79 13.93 12.98 12.21 13.60 14.23 MnO 0.14 0.20 0.18 0.18 0.14 0.14 0.19 0.23 0.12 0.16 0.20 0.18 0.17 0.15 0.20 0.18 0.17 0.13 0.11 0.19 0.17 MgO 3.21 4.62 4.97 6.80 9.31 2.31 2.19 2.10 2.91 3.43 4.98 4.49 7.07 8.55 7.28 5.05 8.36 4.23 5.22 5.99 5.12 CaO 19.41 11.69 12.81 10.03 7.43 12.86 9.72 9.58 16.70 15.04 13.34 15.46 9.00 9.08 10.42 10.83 7.01 10.07 10.42 9.29 10.49 Na2O 2.82 3.07 2.96 3.05 3.16 3.32 3.47 2.83 2.95 3.14 2.98 2.95 2.62 3.15 3.02 2.85 3.15 3.13 3.03 2.90 2.88 K2O 0.95 0.84 1.02 0.96 0.41 1.43 1.20 1.57 0.86 1.05 1.30 1.04 1.24 0.38 0.81 1.10 0.55 1.27 1.12 1.08 1.14 P2O5 0.36 0.30 0.24 0.29 0.25 0.28 0.74 1.92 0.37 0.42 0.30 0.26 0.21 0.24 0.26 0.29 0.26 0.78 0.37 0.33 0.34 Total 91.43 97.60 95.41 98.40 97.39 95.10 98.37 96.08 91.27 93.45 96.96 96.15 97.46 98.34 96.29 95.92 96.49 95.33 95.73 96.06 96.95 LOI 9.48 3.63 4.98 3.15 3.62 3.75 1.93 4.17 7.81 5.56 4.25 5.69 3.20 3.19 3.24 4.48 3.71 4.16 4.69 3.98 2.84 Mg# 0.40 0.39 0.46 0.51 0.60 0.29 0.24 0.24 0.36 0.38 0.47 0.47 0.52 0.58 0.55 0.45 0.57 0.42 0.48 0.49 0.44 Trace element (ppm): Sr 243 244 227 203 198 275 300 333 242 243 248 237 191 200 203 214 180 264 237 212 219 Ba 68.9 82.9 70.8 81.2 61.9 83.4 118 130 73.5 80.7 86.7 77.6 64.2 58.2 79.0 74.8 66.1 90.0 62.1 79.3 79.6 Sc 38.6 40.3 40.9 43.8 34.8 39.0 47.4 41.7 43.2 41.9 46.0 42.3 39.4 40.9 40.5 41.9 40.9 41.1 38.2 40.5 46.3 V 342 366 335 362 323 347 440 317 359 370 357 362 341 329 328 335 339 317 280 333 355 Cr 179 158 171 165 158 147 166 156 173 148 166 168 171 175 174 151 152 148 149 169 154 Co 59.7 42.7 50.0 46.1 53.9 46.0 55.4 65.2 40.2 45.1 59.7 57.7 43.7 50.6 60.0 46.6 47.1 48.6 41.4 57.6 70.7 Ni 39.8 64.1 51.5 65.9 79.6 40.8 57.7 55.4 10.1 36.7 81.4 77.8 124 90.5 97.1 56.9 48.3 48.2 46.4 138 64.1 Cu 78.1 90.3 85.3 96.4 94.7 119 107 120 88.0 90.9 97.5 95.8 94.1 98.4 110 94.8 97.4 88.0 82.6 90.5 99.7 Zn 93.4 108 108 102 110 115 143 144 123 123 155 132 169 108 111 120 90.5 165 187 178 233 Y 35.5 45.5 33.3 39.0 35.1 40.0 42.9 50.7 38.5 42.9 40.9 35.5 28.8 34.6 34.3 39.2 33.4 39.8 32.7 35.3 43.7 Zr 145 159 134 165 148 161 171 168 160 164 156 143 120 145 152 153 158 156 142 146 177