Table T2. Thermometry and oxybarometry results, Hole 1256D.
| Lithology | Single-cpx | 2-pyroxene | QUILF 2-pyroxene | Amph-pl | 2-oxide | QUILF 2-oxide | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | T (°C) | N | T (°C) | N | T (°C) | T err (°C) | N | T (°C) | N | T (°C) | ΔNNO | N | T (°C) | T err (°C) | ΔFMQ | |
| Basalts | 1 | 798 | –1.26 | 1 | 689 | 103 | –1.44 | |||||||||
| Dolerites | 28 | 1017 | 1 | 707 | 3 | 902 | –0.80 | 3 | 716 | 97 | 0.91 | |||||
| Diorites | 7 | 799 | 1 | 783 | 1 | 909 | 46 | 2 | 887 | |||||||
| Gabbros | 16 | 809 | 6 | 817 | 11 | 622 | 2.27 | 11 | 674 | 76 | 1.92 | |||||
| Gabbronorites | 13 | 810 | 12 | 816 | 12 | 958 | 55 | 10 | 643 | 2.04 | 10 | 697 | 119 | 1.86 | ||
| Albitites | 9 | 780 | 2 | 611 | 2.66 | 2 | 677 | 12 | 2.57 | |||||||
| Granoblastic basalts (Degree 1) | 15 | 833 | 10 | 852 | 10 | 966 | 52 | 8 | 632 | 2.38 | 8 | 684 | 70 | 2.22 | ||
| Granoblastic basalts (Degree 2) | 30 | 838 | 25 | 857 | 25 | 969 | 45 | 2 | 744 | 17 | 637 | 2.15 | 17 | 694 | 70 | 2.01 |
| Granoblastic basalts (Degree 3) | 26 | 861 | 21 | 882 | 21 | 984 | 42 | 2 | 863 | 16 | 632 | 2.05 | 16 | 679 | 117 | 1.71 |
| Granoblastic basalts (Degree 4) | 22 | 854 | 18 | 877 | 18 | 974 | 44 | 1 | 756 | 12 | 631 | 1.97 | 12 | 681 | 75 | 1.49 |
| Granoblastic basalts (Degree 5) | 34 | 855 | 29 | 880 | 29 | 977 | 46 | 3 | 776 | 23 | 644 | 2.00 | 23 | 696 | 103 | 1.83 |
| Granoblastic basalts (Degree 6) | 17 | 845 | 13 | 888 | 13 | 985 | 52 | 1 | 712 | 12 | 640 | 2.11 | 12 | 688 | 94 | 1.91 |
| Run14EXJB-T-G15 gabbro | 1 | 996 | ||||||||||||||
| Ol-gabbronorite | 1 | 895 | 1 | 980 | 1 | 1040 | 131 | |||||||||
Calculations are based on average mineral composition of each grain. Values from the Run14EXJB-T-G15 gabbro and olivine (ol)-gabbronorite are not included in gabbro and gabbronorite results. Methods and uncertainties: France et al. (2010b) single-clinopyroxene (cpx) thermometer = ±40°C, Brey and Kohler (1990) 2-pyroxene thermometer = ±15°C, Andersen et al. (1993) QUILF 2-pyroxene thermometer and QUILF 2-oxide oxythermobarometer = ±0.1 log units, Holland and Blundy (1994) amphibole (amph)-plagioclase (pl) thermometer = ±40°C, Sauerzapf et al. (2008) 2-oxide oxythermobarometer = ±70°C and ±0.4 log units. France et al. (2010a) clinopyroxene-plagioclase oxybarometer used temperatures estimated with * = single-cpx, † = 2-pyroxene, and ‡ = QUILF 2-pyroxene. The complete data set is available in RESULTS in “Supplementary material.” N = number of grains, T = temperature, err = error, ΔNNO = oxygen fugacity relative to nickel-nickel-oxide buffer, ΔFMQ = oxygen fugacity relative to fayalite-magnetite-quartz buffer, ΔFMQ err = 2σ error according to France et al. (2010a).
| Lithology | Clinopyroxene-plagioclase* | Clinopyroxene-plagioclase† | Clinopyroxene-plagioclase‡ | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | ΔFMQ | ΔFMQ err | ΔNNO | N | ΔFMQ | ΔFMQ err | ΔNNO | N | ΔFMQ | ΔFMQ err | ΔNNO | |
| Basalts | ||||||||||||
| Dolerites | 25 | 1.95 | 0.68 | 1.22 | 25 | 25 | ||||||
| Diorites | 3 | 1.11 | 1.02 | 0.33 | 3 | 3 | ||||||
| Gabbros | 11 | 1.27 | 1.03 | 0.49 | 11 | 11 | ||||||
| Gabbronorites | 13 | 13 | 0.93 | 1.07 | 0.14 | 13 | 0.78 | 1.15 | 0.03 | |||
| Albitites | ||||||||||||
| Granoblastic basalts (Degree 1) | 14 | 14 | 1.20 | 0.92 | 0.45 | 14 | 1.08 | 0.97 | 0.36 | |||
| Granoblastic basalts (Degree 2) | 29 | 29 | 0.80 | 1.08 | 0.03 | 29 | 0.66 | 1.14 | –0.08 | |||
| Granoblastic basalts (Degree 3) | 26 | 26 | 0.82 | 1.05 | 0.05 | 26 | 0.68 | 1.11 | –0.06 | |||
| Granoblastic basalts (Degree 4) | 22 | 22 | 0.92 | 1.03 | 0.15 | 22 | 0.79 | 1.09 | 0.05 | |||
| Granoblastic basalts (Degree 5) | 34 | 34 | 0.98 | 0.97 | 0.22 | 34 | 0.86 | 1.02 | 0.12 | |||
| Granoblastic basalts (Degree 6) | 16 | 16 | 1.35 | 0.88 | 0.58 | 16 | 1.23 | 0.93 | 0.49 | |||
| Run14EXJB-T-G15 gabbro | 1 | 3.02 | 0.74 | 2.28 | 1 | 1 | ||||||
| Ol-gabbronorite | 1 | 1 | 2.07 | 0.87 | 1.32 | 1 | 1.97 | 0.99 | 1.25 | |||
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