Initial Reports, Volume 209 Ms 209IR-110 Chapter 10, Table T4. Major and trace element compositions of rocks, Holes 1275B and 1275D. Note: LOI = loss on ignition. Core, section, interval (cm) Depth (mbsf) Piece Unit Lithology Gabbro group Major element oxides (wt%): SiO2 TiO2 Al2O3 Fe2O3 MgO MnO CaO Na2O K2O Total LOI Volatiles (wt%): CO2 H2O Trace elements (ppm): S Cr Ni Ba Sr V Y Zr Sc Co 209-1275B- 3R-1, 82-86 13.82 13 I Diabase 1 51.76 1.26 15.07 10.66 9 0.18 10.36 2.9 0.07 101.26 1.23 0.28 1.92 <350 245 140 <39 140 244 28 89 38 53 3R-1, 103-107 14.03 17 I Gabbro 2 51.78 3.63 13.84 12.41 6.19 0.21 8.99 4.04 0.12 101.21 0.72 0.1 1.13 <350 <41 <165 <39 178 321 23 44 55 74 5R-1, 134-137 23.94 22 I Gabbro 2 50.04 6.85 11.86 14.91 4.99 0.26 9.34 3.71 0.17 102.12 0.56 0.08 1.13 <350 <41 <165 <39 146 539 28 76 64 110 6R-1, 61-64 28.21 10 II Troctolite 40.74 0.17 3.8 10.26 37.55 0.15 5.91 0.14 0.12 98.83 12.16 3.2 8.46 <350 3738 1946 <39 30 44 6 21 7 123 6R-2, 27-30 29.33 4A II Troctolite 42.45 0.12 4.82 9.9 39.34 0.14 2.25 0.12 0.06 99.18 9.72 0.26 9.35 <350 3761 2008 <39 493 62 <2 10 9 129 6R-2, 102-107 30.08 9 II Troctolite 43.02 0.08 5.11 9.71 40.15 0.12 2.24 0.07 0.03 100.54 11.09 0.23 10.65 <350 3389 1887 <39 13 45 2 8 9 126 9R-1, 109-112 42.89 15 III Fine-grained gabbro 2 44.79 5.36 11.88 18.71 5.68 0.27 9.45 3.2 0.12 99.47 -0.34 0.1 1 362 <41 <165 <39 130 596 20 47 56 117 10R-1, 74-76 47.54 10 III Coarse-grained gabbro 2 47.18 5.24 13.32 16.3 4.71 0.23 9.58 3.64 0.13 100.35 -0.38 0.17 1.08 1618 <41 <165 42 162 568 26 76 52 109 12R-2, 89-92 58.36 1B III Gabbro 2 47.73 5.31 13.28 16.51 4.87 0.23 9.83 3.5 0.12 101.39 -0.97 0.11 0.98 778 <41 <165 <39 161 575 26 79 52 117 14R-1, 84-86 66.64 13 III Fine-grained diabase 1 47.87 1.24 15.35 12.78 9.16 0.2 11.06 2.29 0.1 100.04 2.33 0.34 2.28 <350 325 165 <39 199 212 24 91 35 76 15R-2, 68-71 72.54 11 III Fine-grained gabbro 2 45.37 5.54 12.13 19.03 5.41 0.25 9.73 3.15 0.13 100.75 0.05 0.05 0.96 <350 <41 <165 <39 134 866 23 66 57 106 17R-1, 65-67 80.75 11 III Fine-grained diabase 1 51.1 0.79 17.59 7.88 8.58 0.12 12.33 2.57 0.22 101.19 1.25 0.1 1.28 <350 408 168 <39 123 188 17 44 32 79 17R-1, 123-125 81.33 19 III Coarse-grained gabbro 2 48.39 4.89 12.74 17.06 5.72 0.24 9.44 3.55 0.17 102.22 0.47 0.13 1.37 <350 <41 <165 <39 149 765 25 63 52 108 19R-1, 48-50 89.88 5A III Fine-grained gabbro 1 51.28 1.01 16.06 8.88 9.51 0.15 11.22 2.75 0.22 101.08 1.34 0.11 1.59 <350 407 <165 <39 160 191 21 32 33 53 19R-1, 135-137 90.75 6B III Coarse-grained gabbro 2 45.19 6.6 13.07 16.38 4.9 0.22 9.47 3.41 0.16 99.4 -0.94 0.12 0.94 1241 <41 <165 <39 159 663 19 73 53 128 20R-2, 105-107 96.61 7 III Fine-grained gabbro 2 50.79 2 13.5 14.35 6.91 0.23 10.75 3.1 0.18 101.83 0 0.13 0.99 966 <41 <165 <39 154 589 15 31 52 94 20R-2, 117-119 96.73 8 III Coarse-grained gabbro 2 45.14 4.07 12.85 19.68 5.14 0.23 9.41 3.21 0.25 99.99 -0.12 0.31 1.04 1424 <41 <165 48 149 1038 35 66 44 127 21R-1, 26-28 99.26 1D III Fine-grained gabbro 2 44.18 5.45 11.47 20.18 6.36 0.24 10.4 2.62 0.11 101.01 -0.05 0.16 1.24 <350 <41 <165 <39 130 1144 16 29 62 170 21R-1, 90-92 99.9 4C III Coarse-grained gabbro 2 42.6 8.87 10.93 21.69 6.1 0.29 9.31 2.63 0.11 102.53 -0.42 0.08 0.9 <350 <41 <165 <39 125 1093 23 88 62 163 21R-2, 0-4 100.5 1 III Coarse-grained gabbro (altered) 2 45.42 5.25 11.53 19.13 6.45 0.25 10.77 2.72 0.12 101.63 -0.13 BDL 0.86 1521 <41 <165 <39 132 1053 24 61 64 111 21R-2, 136-138 101.86 7B III Coarse-grained gabbro 2 47.43 4.23 12.19 18.7 6.04 0.24 10.55 3.02 0.14 102.54 -0.09 0.1 1.36 1546 <41 <165 <39 135 938 28 51 57 124 209-1275D- 1R-1, 113-115 1.13 19B I Gabbro 2 52.3 2.96 12.36 11.17 6.72 0.14 10.42 3.92 0.1 100.09 0.85 0.31 2.29 <350 <41 <165 61 192 230 83 103 44 84 2R-1, 137-140 9.37 27 I Troctolite 45.07 0.15 3.8 10.75 37.02 0.16 1.44 0.22 0.1 98.71 10.95 0.29 10.99 <350 3791 1691 <39 10 66 6 18 14 110 6R-1, 89-91 27.99 17 I Troctolite 40.36 0.08 3.91 9.54 31.16 0.14 13.3 0.19 0.1 98.78 15.85 9.01 6.83 <350 4441 1596 <39 149 70 4 14 8 116 10R-1, 50-52 46.6 6 I Troctolite 43 0.17 1.31 12.53 40.07 0.14 1.13 0.16 0.06 98.55 13.92 1.83 12 <350 4279 1790 48 16 67 5 17 12 130 10R-2, 104-106 48.57 14A I Troctolite 41.48 0.14 2.24 10.44 40.65 0.17 2.72 0.13 0.07 98.03 15.65 2.97 12.47 <350 3990 1912 <39 17 67 3 7 10 125 12R-2, 42-46 57.58 8 II Gabbro 2 44.36 5.86 12.24 18.69 5.31 0.26 9.87 3.08 0.11 99.77 0.09 0.2 1.38 <350 <41 <165 <39 145 596 22 49 60 102 13R-2, 49-51 62.45 1B II Gabbro 2 47.91 3.94 11.94 19.44 6.31 0.32 9.04 3.01 0.1 102.02 1.31 0.51 1.69 1856 <41 <165 <39 128 539 34 47 53 101 15R-2, 11-13 71.82 1A II Fine-grained gabbro 2 46.18 4.39 12.07 20.78 6.01 0.27 10.16 2.82 0.07 102.76 -0.24 0.28 1.25 2467 <41 <165 <39 127 922 23 33 60 119 17R-2, 93-95 82.05 15A III Troctolite 43.29 0.13 4.11 10.2 39.95 0.15 2.11 0.07 0.07 100.08 13.3 1.09 11.87 <350 3738 2048 <39 124 52 4 10 10 115 18R-1, 133-135 85.73 17B III Coarse-grained gabbro 2 45.81 4.08 12.52 22.01 5.66 0.23 9.78 2.87 0.11 103.07 -0.02 0.13 1.55 1327 <41 <165 <39 128 1305 28 63 51 122 21R-1, 63-65 99.6 8A IV Diabase 1 53.3 1 16.02 9.27 8.31 0.17 11.89 2.81 0.05 102.81 1.4 0.24 2.27 <350 297 <165 <39 147 229 23 71 38 83 22R-1, 145-147 105.15 20B IV Fine-grained gabbro 2 48.2 4.13 12.33 19.38 5.94 0.24 10.53 2.93 0.1 103.8 0.18 0.08 BDL <350 <41 <165 <39 133 1131 20 33 63 100 31R-2, 69-71 143.91 4F IV Granophyre 69.47 0.56 11.36 8.63 3.21 0.13 4.69 5.66 0.1 103.81 0.43 0.1 1.27 <350 <41 <165 63 91 99 110 1370 32 59