1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Number Analysis Description SiO2 39.60 39.08 38.64 38.12 38.71 38.98 39.32 38.84 38.80 40.15 39.26 39.24 39.26 37.73 39.39 38.76 36.97 1 "874B-24R-1, 12-16 OL 5" Core of small phenocryst TiO2 0.05 0.02 0.00 0.01 0.00 0.01 0.01 0.02 0.01 0.00 0.02 0.03 0.01 0.02 0.03 0.02 0.04 2 "874B-24R-1, 12-16 OL 6" Core of phenocryst Al2O3 0.04 0.03 0.04 0.01 0.03 0.03 0.07 0.05 0.05 0.04 0.07 0.05 0.05 0.03 0.01 0.00 0.03 3 "874B-24R-4, 11-15 OL 2" Small phenocryst Cr2O3 0.04 0.04 0.02 0.02 0.01 0.02 0.04 0.04 0.01 0.03 0.03 0.04 0.00 0.01 0.00 0.00 0.02 4 "874B-24R-4, 11-15 OL 6" Core of large phenocryst FeO 15.17 14.82 18.00 17.90 18.52 18.27 14.67 14.69 18.06 13.76 14.70 14.83 15.79 26.11 14.05 19.44 26.82 5 "874B-24R-4, 11-15 OL 7" Small phenocryst MnO 0.19 0.19 0.24 0.25 0.26 0.24 0.18 0.18 0.26 0.20 0.22 0.22 0.22 0.36 0.19 0.36 0.39 6 "874B-24R-4, 11-15 OL 14" Small phenocryst MgO 44.77 44.80 42.94 43.24 42.56 43.20 45.96 46.15 43.04 46.50 45.37 45.26 44.89 37.53 46.24 42.33 36.81 7 "874B-24R-4, 11-15 OL 17" Large phenocryst NiO 0.21 0.18 0.18 0.13 0.18 0.19 0.17 0.15 0.18 0.19 0.23 0.22 0.32 0.07 0.40 0.27 0.09 8 "874B-24R-4, 11-15 OL 18" Large phenocryst CaO 0.24 0.30 0.31 0.32 0.31 0.28 0.26 0.22 0.32 0.34 0.27 0.28 0.15 0.20 0.10 0.08 0.18 9 "874B-24R-4, 11-15 OL 21" Small phenocryst Total 100.31 99.46 100.37 100.00 100.58 101.22 100.68 100.34 100.73 101.21 100.17 100.17 100.69 102.06 100.41 101.26 101.35 10 "874B-24R-4, 11-15 OL 23" Small phenocryst 11 "878A-84R-4, 111-113 OL 2" Small phenocryst Per 4 O's 12 "878A-84R-4, 111-113 OL 6" Small phenocryst Si 0.994 0.989 0.984 0.975 0.986 0.984 0.982 0.974 0.984 0.992 0.986 0.986 0.986 0.981 0.984 0.984 0.973 13 "878A-90R-6, 63-64 OL 5" Small phenocryst Ti 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 14 "878A-90R-6, 63-64 OL 6" Small phenocryst Al 0.001 0.000 0.001 0.000 0.000 0.000 0.002 0.001 0.001 0.001 0.002 0.001 0.000 0.000 0.000 0.000 0.000 15 "878A-91R-5, 47-54 OL 2" Dunite xenolith Cr 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 16 "878A-91R-5, 47-54 OL 3" Dunite xenolith Fe+2 0.318 0.314 0.383 0.383 0.394 0.386 0.306 0.308 0.383 0.284 0.309 0.312 0.332 0.567 0.294 0.413 0.590 17 "878A-91R-5, 47-54 OL 7" Dunite xenolith Mn 0.004 0.004 0.005 0.005 0.006 0.005 0.004 0.004 0.006 0.004 0.005 0.005 0.005 0.008 0.004 0.008 0.009 Mg 1.675 1.690 1.630 1.649 1.615 1.626 1.711 1.726 1.628 1.712 1.698 1.695 1.680 1.454 1.722 1.602 1.444 Ni 0.004 0.004 0.004 0.003 0.004 0.004 0.003 0.003 0.004 0.004 0.005 0.004 0.006 0.001 0.008 0.006 0.002 Ca 0.006 0.008 0.008 0.009 0.008 0.008 0.007 0.006 0.009 0.009 0.007 0.008 0.004 0.006 0.003 0.002 0.005 Total 3.002 3.009 3.015 3.024 3.013 3.013 3.015 3.022 3.015 3.006 3.012 3.011 3.013 3.017 3.015 3.015 3.023 Fo 84.0 84.3 81.0 81.2 80.4 80.8 84.8 84.8 80.9 85.8 84.6 84.5 83.5 71.9 85.4 79.5 71.0