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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

Note: SD = standard deviation

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