Sample NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 NP-29 number 540.9 561.7 563.8 567 575.3 584.6 588.3 598.8 599.8 603 617.6 628 637.9 655.7 658.7 667 669.7 678.2 681.2 683.6 684.4 691.6 Height* 157.2 136.4 134.3 131.1 122.8 113.5 109.8 99.3 98.3 95.1 80.5 70.1 60.2 42.4 39.4 31.1 28.4 19.9 16.9 14.5 13.7 6.5 Rock type** nc mg mg mg nc mg ob ob mg nc ob/o ob/o ob/o ob/o o o nc p-l p p p t "SiO2, wt%" 52.44 50.15 50.97 48.49 51.04 48.78 50.20 50.11 49.53 34.63 48.64 49.84 49.92 48.88 48.61 48.64 48.16 46.57 44.55 46.45 46.11 47.51 Al2O3 12.87 12.46 12.64 12.38 13.92 11.55 15.84 16.39 13.01 7.29 16.39 17.53 15.93 16.29 17.46 17.31 16.29 12.31 9.33 11.45 12.23 19.59 FeOT 14.79 16.80 16.55 18.09 12.97 17.45 10.85 10.13 16.26 36.63 9.10 8.38 8.72 9.98 9.74 9.46 10.10 12.84 13.98 12.64 12.31 8.47 MgO 3.65 4.48 4.56 4.96 5.97 5.78 6.15 7.00 4.68 10.91 9.33 7.31 8.38 9.07 8.91 8.65 9.72 16.14 23.06 18.35 19.75 10.30 CaO 8.09 9.51 8.78 9.36 10.04 9.85 11.79 11.42 9.11 3.95 13.29 13.58 13.74 12.56 11.73 12.30 12.01 9.15 6.91 8.31 7.52 11.26 Na2O 4.00 2.95 3.02 3.14 3.89 3.59 3.08 2.97 4.33 0.95 1.79 1.93 1.93 1.83 1.95 2.04 1.76 1.41 0.86 1.29 1.08 1.63 K2O 0.79 0.59 0.48 0.47 0.36 0.03 0.59 0.58 0.03 1.15 0.48 0.37 0.28 0.32 0.49 0.45 0.76 0.35 0.32 0.35 0.20 0.33 TiO2 2.59 2.47 2.40 2.54 1.38 2.43 1.20 1.10 2.52 4.12 0.76 0.82 0.83 0.78 0.85 0.88 0.92 0.90 0.68 0.84 0.52 0.68 P2O5 0.51 0.29 0.32 0.28 0.21 0.22 0.12 0.12 0.27 0.12 0.08 0.09 0.09 0.09 0.10 0.10 0.11 0.09 0.08 0.11 0.08 0.07 MnO 0.27 0.30 0.28 0.29 0.22 0.32 0.18 0.18 0.25 0.25 0.14 0.16 0.17 0.18 0.16 0.16 0.15 0.23 0.23 0.21 0.21 0.15 H20+ 2.62 1.66 1.95 2.36 2.74 2.67 1.96 2.06 2.51 2.59 1.89 1.05 1.08 1.28 0.52 1.79 2.25 2.15 2.98 2.25 3.47 2.75 H20- 0.72 1.51 1.76 0.88 0.31 0.54 0.41 0.32 0.36 0.49 0.26 0.37 0.28 0.27 0.44 0.25 0.31 0.22 0.28 0.27 0.63 0.55 CO2 0.09 0.04 0.54 0.07 0.93 0.05 0.01 0.10 0.01 0.26 0.02 0.06 0.05 0.05 0.09 0.07 0.04 0.06 0.05 0.25 0.77 0.63 S 0.04 0.05 0.01 0.03 0.01 0.07 0.02 0.09 0.27 1.28 0.05 0.04 0.04 0.05 0.05 0.12 0.16 0.05 0.05 0.44 1.68 3.09 "Ba, ppm" 122 144 148 164 73 54 128 144 52 176 120 114 114 114 106 156 250 138 120 116 102 84 Cr 2.5 2.1 3.1 4 11.4 4.2 75 215 2.5 180 620 500 650 440 255 275 270 2700 2550 3900 2570 110 Cs 0.12 1.85 1.36 0.34 0.17 n.d. 0.63 0.91 0.07 1.46 0.48 0.52 0.42 0.53 0.62 0.33 0.44 0.61 0.27 0.45 0.46 0.45 Hf 6.39 3.96 4.09 3.41 2.49 3.53 2.05 1.78 3.8 2.1 1.37 1.57 1.41 1.35 1.5 1.44 1.53 1.43 1.01 1.27 1.02 0.882 Pb 4.76 1.64 0.75 1.89 n.d. 0.65 0.97 1.18 0.77 1.15 1.34 2.27 3.59 n.d. 1.29 1.31 1.19 3.58 3.51 4.11 4.64 3.57 Rb 26 24 16 21 19 9 21 22 6 57 19 12 11 16 20 14 22 13 12 12 5 10 Sc 18 34 30 36 36 43 38 39 33 27 34 36 39 33 28 29 27 28 22 26 20 16 Sr 215 282 280 285 140 77 298 300 65 90 214 210 210 215 205 238 210 188 136 184 158 210 Ta 1 0.534 0.51 0.479 0.31 0.424 0.238 0.215 0.48 0.284 0.146 0.157 0.144 0.161 0.177 0.173 0.192 0.159 0.123 0.158 0.118 0.102 Th 3.05 1.88 2.21 1.53 1.15 1.76 0.993 0.86 1.95 0.847 0.592 0.679 0.627 0.751 0.686 0.7 0.759 0.614 0.435 0.531 0.32 0.356 U 1.35 0.748 0.927 0.543 0.468 0.658 0.404 0.377 0.827 0.321 0.317 0.286 0.251 0.249 0.286 0.381 0.376 0.278 0.148 0.256 0.169 0.164 Y 74 40 54 57 39 51 39 37 54 32 23 18 24 28 22 25 28 26 30 17 11 14 Zr 265 144 174 142 93 142 93 91 156 81 59 64 65 67 68 62 72 65 52 52 41 39 "Co, ppm" 36 52 48 55 46 55 41 43 47 177 47 37 39 50 49 46 52 80 106 97 166 188 Cu 28 10 26 56 80 126 132 106 186 3000 98 88 102 116 110 118 152 134 164 3900 5300 9100 Ni 29 16 44 36 58 43 83 108 36 420 182 98 126 154 132 186 198 520 900 1200 4300 9300 Zn 2.5 2.1 3.1 4 11.4 4.2 75 215 2.5 180 620 500 650 440 255 275 270 2700 2550 3900 2570 110 "Pt, ppb" <0.5 <0.5 <0.5 <0.5 6.2 <0.5 3.7 1.4 <0.5 200 7.7 9.1 6.1 8.4 7.7 8.9 7.5 48 200 1500 1500 2500 Pd <0.5 <0.5 <0.5 <0.5 3.6 <0.5 3.4 1.1 <0.5 110 6.7 7.2 4.6 7.2 7.8 7.2 7.1 43 400 3500 5000 47000 "La, ppm" 23.6 15.2 15.6 12.2 10.9 13.6 6.98 6.82 15.9 8.38 4.5 5.21 4.74 4.54 5.24 5.02 5.44 4.89 3.71 4.55 3.39 2.93 Ce 56 35.1 34.2 28.2 24.4 31.2 16.7 14.4 36 18.8 11.3 12.4 11.5 11.6 12 11.2 12.6 10.6 8.86 12.4 8.57 7.11 Nd 34.1 20.4 20.7 17.9 14.6 18.5 10.8 8.78 22.4 11 6.79 7.47 6.68 6.9 7.18 7.12 7.92 6.68 6.15 7.67 6.18 4.46 Sm 8.55 5.75 5.62 5.27 4.07 5.28 2.99 2.72 5.87 3.08 2.02 2.15 2.06 2.03 2.14 2.12 2.39 2.02 1.68 2.12 1.62 1.37 Eu 2.87 1.86 1.94 1.8 1.39 1.81 1.07 0.949 1.64 0.748 0.781 0.808 0.755 0.762 0.784 0.798 0.793 0.761 0.555 0.704 0.52 0.558 Gd 10 6.9 6.93 5.85 4.65 6.23 3.63 3.25 6.61 3.29 2.53 2.6 2.43 2.49 2.82 2.49 2.81 2.39 1.86 2.23 1.64 1.77 Tb 1.57 1.13 1.15 1.05 0.78 1.08 0.589 0.557 1.16 0.527 0.389 0.411 0.418 0.405 0.433 0.423 0.45 0.397 0.297 0.369 0.273 0.244 Ho 2.21 1.64 1.64 1.5 1.14 1.56 0.861 0.803 1.64 0.753 0.578 0.611 0.575 0.591 0.642 0.588 0.688 0.581 0.437 0.541 0.4 0.362 Tm 0.905 0.677 0.71 0.606 0.488 0.664 0.356 0.342 0.686 0.253 0.276 0.247 0.25 0.275 0.268 0.255 Yb 5.64 4.37 4.43 3.93 3.03 4.03 2.35 2.1 4.42 2 1.52 1.73 1.63 1.59 1.68 1.75 1.81 1.57 1.29 1.55 1.19 1.06 Lu 0.841 0.654 0.623 0.574 0.448 0.604 0.338 0.309 0.66 0.295 0.22 0.247 0.245 0.23 0.249 0.253 0.254 0.228 0.181 0.234 0.174 0.15 87Sr/86Sr 0.706 0.70599 0.70597 0.7059 0.70569 0.70527 0.70599 0.70596 0.70555 0.70703 0.70574 n.d. 0.70561 0.70539 0.70558 0.70572 0.70573 0.70552 0.70573 0.70574 0.70636 0.70567 206Pb/204Pb 17.893 17.969 17.763 18.069 n.d. 17.917 18.096 17.987 17.829 17.918 17.834 18.111 18.031 n.d. 18.236 17.9 17.809 17.9048 18.17 18.108 18.023 18.141 207Pb/204Pb 15.486 15.49 15.471 15.477 n.d. 15.491 15.494 15.505 15.491 15.468 15.477 15.513 15.484 n.d. 15.515 15.476 15.475 15.489 15.518 15.487 15.49 15.611 208Pb/204Pb 37.754 37.723 37.519 37.718 n.d. 37.621 37.765 37.777 37.708 37.731 37.717 37.856 37.744 n.d. 37.873 37.687 37.606 37.724 37.882 37.809 37.776 38.116 *Height in meters above base of intrusion. "** Key to rock classification; lg, leucogabbro; qd, quartz diorite; mg, magnetite gabbro; pg, prismatic gabbro; ol-b, olivine-bearing gabbrodolerite; ol-b/ol, olivine-bearing to olivine gabbrodolerite; ol, olivine gabbrodolerite; " "p-l, picritic-like gabbrodolerite; p, picritic gabbrodolerite; ol-r p, olivine-rich picritic gabbrodolerite; t, taxitic gabbrodolerite; c, contact gabbrodolerite; nc, classification in doubt. "