Table T3 (continued).
Rock type | Details | |||||||||||
Mode | ||||||||||||
% | Orthopyroxene | Oxide | ||||||||||
Oxide gabbronorite | Average | 5 | 4.1 | |||||||||
and Orthopyroxene-bearing oxide gabbro | Maximum | 10 | 8 | |||||||||
Minimum | 2 | 2 | ||||||||||
Chemical composition (eight analyses) | ||||||||||||
Wt % | Fe2O3tot | MnO | MgO | CaO | Na2O | K2O | P2O5 | Sum | LOI | Mg# | Ca# | |
Average | 17.9 | 0.26 | 6.45 | 10.33 | 3.03 | 0.09 | 0.85 | 100.95 | 0.38 | 45.25 | 65.19 | |
Standard deviation | 6.18 | 0.07 | 1.93 | 1.68 | 0.68 | 0.04 | 1.08 | 0.27 | 0.39 | 11.39 | 7.08 | |
Maximum | 27.66 | 0.37 | 10.77 | 13.36 | 4.23 | 0.18 | 3 | 101.35 | 1 | 62.28 | 80.26 | |
Minimum | 7.34 | 0.13 | 4.82 | 7.67 | 1.82 | 0.04 | 0.01 | 100.4 | -0.19 | 29.54 | 58.5 | |
Mode | ||||||||||||
% | Orthopyroxene | Oxide | ||||||||||
Oxide gabbro | Average | 1 | 5.1 | |||||||||
and disseminated oxide gabbro | Maximum | 1 | 25 | |||||||||
Minimum | 0 | 2 | ||||||||||
Chemical composition (four analyses) | ||||||||||||
Wt % | Fe2O3tot | MnO | MgO | CaO | Na2O | K2O | P2O5 | Sum | LOI | Mg# | Ca# | |
Average | 18.85 | 0.26 | 5.91 | 10.21 | 3.12 | 0.08 | 0.61 | 100.79 | 0.25 | 39.61 | 64.64 | |
Standard deviation | 0.78 | 0.02 | 2.09 | 0.79 | 0.72 | 0.05 | 0.73 | 0.58 | 0.31 | 9.93 | 6.96 | |
Maximum | 19.98 | 0.3 | 8.26 | 11.22 | 4.06 | 0.17 | 1.82 | 101.35 | 0.55 | 49.42 | 72.58 | |
Minimum | 17.82 | 0.24 | 3.02 | 9.32 | 2.24 | 0.03 | 0.01 | 99.83 | -0.25 | 24.96 | 55.93 | |
Mode | ||||||||||||
% | Orthopyroxene | Oxide | ||||||||||
Clinopyroxenite | Average | 0 | 2.5 | |||||||||
Maximum | 0 | 4 | ||||||||||
Minimum | 0 | 1 | ||||||||||
Chemical composition (two analyses) | ||||||||||||
Wt % | Fe2O3tot | MnO | MgO | CaO | Na2O | K2O | P2O5 | Sum | LOI | Mg# | Ca# | |
Average | 12.25 | 0.22 | 16.29 | 13.69 | 1.27 | 0.02 | 0.04 | 102.23 | 0.81 | 0.73 | 0.86 | |
Standard deviation | 2.11 | 0.04 | 5.52 | 0.33 | 0.55 | 0.02 | 0.03 | 1.43 | 0.2 | 0.1 | 0.05 | |
Maximum | 14.36 | 0.27 | 21.8 | 14.03 | 1.82 | 0.04 | 0.08 | 103.66 | 1 | 0.83 | 0.91 | |
Minimum | 10.15 | 0.18 | 10.77 | 13.36 | 0.73 | 0 | 0.01 | 100.8 | 0.61 | 0.64 | 0.8 | |
Mode | ||||||||||||
% | Orthopyroxene | Oxide | ||||||||||
Microgabbro | Average | 0.5 | ||||||||||
Maximum | 1 | |||||||||||
Minimum | 0.1 | |||||||||||
Chemical composition (10 analyses) - includes two FeTi oxide gabbros, one gabbro, and seven olivine gabbros | ||||||||||||
Wt% | Fe2O3tot | MnO | MgO | CaO | Na2O | K2O | P2O5 | Sum | LOI | Mg# | Ca# | |
Average | 8.18 | 0.15 | 9.53 | 12.26 | 3.01 | 0.04 | 0.02 | 102.29 | 0.17 | 71.82 | 69.1 | |
Standard deviation | 2.13 | 0.03 | 1.58 | 1.36 | 0.39 | 0.04 | 0.02 | 1 | 0.24 | 6.95 | 4.35 | |
Maximum | 12.24 | 0.2 | 13.37 | 14.35 | 3.58 | 0.15 | 0.06 | 104.68 | 0.76 | 79.26 | 75.81 | |
Minimum | 5.93 | 0.12 | 7.55 | 9.61 | 2.42 | 0.01 | 0 | 100.74 | -0.18 | 59.99 | 61.09 |