Table T2. Clinopyroxene compositions with structural formulas.
Core, section,
interval (cm)
Point
Phase
Name
Major element oxide (wt%)
Trace element (ppm)
En
Fs
Wo
Mg#
Cr#
SiO2
TiO2
Al2O3
Cr2O3
FeO
MnO
MgO
CaO
Na2O
Total
Si
Ti
Al (T)
Al (M1)
Fe3+ (T)
Fe3+ (M1)
Fe2+
Mn
Mg
Ca
Na
Cr
Total
200-1224A-
4X-1, 16–19 2-1 Clinopyroxene phenocryst rim Aluminian augite 51.84 0.71 2.45 0.32 7.73 0.06 16.18 19.47 0.28 99.05 1.9279 0.0199 0.0721 0.0355 0.0000 0.0079 0.2324 0.0018 0.8968 0.7757 0.0205 0.0094 4.0000 46.8 12.6 40.5 0.79 0.08

2-2 Clinopyroxene same phenocryst core Augite 51.58 0.69 2.23 0.19 7.37 0.06 16.09 19.45 0.31 97.97 1.9370 0.0194 0.0630 0.0358 0.0000 0.0052 0.2262 0.0019 0.9007 0.7824 0.0226 0.0057 4.0000 47.0 12.2 40.8 0.80 0.05
200-1224D-
3R-1, 50–53 1-2 Clinopyroxene groundmass Augite 51.14 1.08 2.16 0.09 10.70 0.34 15.00 18.87 0.27 99.65 1.9132 0.0304 0.0868 0.0085 0.0000 0.0346 0.3002 0.0109 0.8365 0.7564 0.0198 0.0028 4.0000 43.15 17.83 39.02 0.74 0.03

2-1 Clinopyroxene groundmass Augite 51.50 1.16 2.08 0.07 11.28 0.34 15.09 18.41 0.30 100.21 1.9185 0.0324 0.0815 0.0096 0.0000 0.0264 0.3249 0.0107 0.8380 0.7346 0.0214 0.0020 4.0000 43.3 18.7 38.0 0.72 0.02

3-3 Clinopyroxene groundmass Augite 50.03 0.87 1.25 0.02 17.57 0.55 12.29 15.61 0.25 98.46 1.9452 0.0256 0.0548 0.0027 0.0000 0.0192 0.5521 0.0183 0.7125 0.6501 0.0189 0.0007 4.0000 36.5 30.2 33.3 0.56 0.01
4R-1, 74–77 1-1 Clinopyroxene groundmass Aluminian augite 50.43 1.15 3.10 0.09 9.99 0.25 16.25 16.87 0.30 98.43 1.8948 0.0325 0.1052 0.0321 0.0000 0.0272 0.2868 0.0079 0.9101 0.6791 0.0217 0.0027 4.0000 47.6 16.8 35.5 0.76 0.02
200-1224F-
1R-4, 115–117 1-2 Clinopyroxene groundmass Aluminian augite 49.68 1.39 2.41
13.90 0.36 14.10 16.68 0.33 98.85 1.8922 0.0398 0.1078 0.0003 0.0000 0.0523 0.3906 0.0116 0.8005 0.6806 0.0244 0.0000 4.0000 41.4 23.5 35.2 0.67 0.00

1-3 Clinopyroxene phenocryst rim Aluminian augite 51.38 0.79 2.39 0.19 8.25 0.13 16.12 19.54 0.29 99.06 1.9125 0.0220 0.0875 0.0172 0.0000 0.0416 0.2151 0.0041 0.8944 0.7791 0.0209 0.0056 4.0000 46.2 13.5 40.3 0.81 0.05

1-4 Clinopyroxene phenocryst core Augite 52.00 0.74 2.26 0.19 7.91 0.29 16.66 19.02 0.26 99.33 1.9267 0.0205 0.0733 0.0255 0.0000 0.0199 0.2252 0.0091 0.9202 0.7552 0.0187 0.0057 4.0000 47.7 13.2 39.1 0.80 0.05
200-1224D-
3R-1, 14–16 1-5 Clinopyroxene groundmass Augite 50.60 0.90 1.71 0.05 13.87 0.42 13.78 17.13 0.30 98.76 1.9318 0.0259 0.0682 0.0087 0.0000 0.0286 0.4144 0.0136 0.7840 0.7006 0.0225 0.0016 4.0000 40.4 23.5 36.1 0.65 0.02

1-6 Clinopyroxene groundmass Aluminian augite 50.73 1.13 2.41 0.11 11.55 0.34 15.03 17.74 0.30 99.33 1.9065 0.0321 0.0935 0.0130 0.0000 0.0347 0.3283 0.0107 0.8421 0.7143 0.0216 0.0033 4.0000 43.6 19.4 37.0 0.72 0.03
200-1224F-
3R-3, 90–92 1-4 Clinopyroxene groundmass Aluminian augite 48.53 1.75 2.86
14.77 0.38 13.24 16.49 0.42 98.45 1.8643 0.0506 0.1296 0.0000 0.0061 0.0660 0.4024 0.0123 0.7584 0.6786 0.0316 0.0000 4.0000 39.4 25.3 35.3 0.65 0.00
4R-6, 11–13 1-1 Clinopyroxene groundmass in pillow Aluminian chromian augite 51.44 0.72 3.21 0.58 6.93 0.20 16.91 19.01 0.26 99.26 1.9004 0.0200 0.0996 0.0400 0.0000 0.0212 0.1929 0.0063 0.9315 0.7525 0.0186 0.0169 4.0000 48.9 11.6 39.5 0.83 0.11

3-1 Clinopyroxene glomrule Aluminian augite 51.35 0.99 3.23 0.12 7.79 0.17 17.39 17.53 0.26 98.84 1.9040 0.0276 0.0960 0.0453 0.0000 0.0102 0.2315 0.0054 0.9615 0.6965 0.0184 0.0037 4.0000 50.5 13.0 36.6 0.81 0.03

3-2 Clinopyroxene glomrule Aluminian augite 50.27 1.18 4.18 0.28 8.07 0.17 17.09 17.04 0.26 98.55 1.8717 0.0331 0.1283 0.0552 0.0000 0.0173 0.2341 0.0054 0.9484 0.6797 0.0186 0.0082 4.0000 50.3 13.6 36.1 0.80 0.04
6R-1, 29–34 1-5 Clinopyroxene in pillow Augite 53.70 0.32 1.48 0.34 8.68 0.38 20.85 13.87 0.19 99.81 1.9557 0.0088 0.0443 0.0191 0.0000 0.0108 0.2535 0.0117 1.1321 0.5411 0.0131 0.0098 4.0000 58.1 14.2 27.8 0.82 0.13

2-3 Clinopyroxene in pillow Augite 52.95 0.49 1.60 0.27 7.84 0.21 18.60 17.39 0.17 99.51 1.9460 0.0135 0.0540 0.0152 0.0000 0.0161 0.2248 0.0066 1.0190 0.6849 0.0121 0.0078 4.0000 52.22 12.68 35.10 0.82 0.10

4-1 Clinopyroxene in black glass pillow Aluminian augite 51.50 1.03 3.40 0.16 7.56 0.22 16.83 18.76 0.29 99.76 1.8956 0.0286 0.1044 0.0430 0.0000 0.0203 0.2124 0.0068 0.9234 0.7398 0.0209 0.0048 4.0000 48.53 12.59 38.88 0.81 0.03

4-4 Clinopyroxene in pillow Augite 52.93 0.63 1.82 0.24 8.45 0.27 19.37 15.16 0.22 99.09 1.9501 0.0176 0.0499 0.0293 0.0000 0.0000 0.2602 0.0083 1.0635 0.5986 0.0155 0.0071 4.0000 55.09 13.91 31.00 0.80 0.08
6R-1, 105–107 1-2 Clinopyroxene groundmass Aluminian chromian augite 50.41 0.82 3.59 0.34 7.20 0.19 15.80 19.42 0.31 98.09 1.8901 0.0232 0.1099 0.0487 0.0000 0.0274 0.1984 0.0062 0.8832 0.7802 0.0227 0.0100 4.0000 46.60 12.24 41.17 0.82 0.06

1-5 Clinopyroxene groundmass Aluminian augite 50.32 0.94 3.49 0.28 8.35 0.27 17.13 17.07 0.26 98.12 1.8827 0.0265 0.1173 0.0367 0.0000 0.0380 0.2234 0.0086 0.9555 0.6844 0.0187 0.0082 4.0000 50.03 14.14 35.83 0.81 0.05
11R-2, 13–15 1-2 Clinopyroxene groundmass Aluminian augite 50.70 1.03 3.96 0.27 7.75 0.15 15.82 18.80 0.30 98.76 1.8910 0.0288 0.1090 0.0650 0.0000 0.0000 0.2416 0.0046 0.8798 0.7510 0.0213 0.0078 4.0000 46.87 13.12 40.01 0.78 0.04

2-1 Clinopyroxene groundmass Aluminian augite 50.54 0.87 3.94 0.21 7.76 0.24 15.42 18.74 0.31 98.03 1.9007 0.0246 0.0993 0.0755 0.0000 0.0000 0.2442 0.0077 0.8644 0.7550 0.0224 0.0062 4.0000 46.19 13.46 40.35 0.78 0.03

4-1 Clinopyroxene groundmass Aluminian augite 51.18 0.98 3.47 0.22 7.80 0.25 15.53 19.91 0.26 99.60 1.8974 0.0272 0.1026 0.0489 0.0000 0.0119 0.2300 0.0078 0.8581 0.7909 0.0189 0.0063 4.0000 45.19 13.15 41.66 0.79 0.04
13R-1, 22–24 1-2 Clinopyroxene groundmass Aluminian augite 49.21 1.50 2.34 0.06 15.56 0.60 12.18 17.14 0.30 98.90 1.8968 0.0435 0.1032 0.0031 0.0000 0.0338 0.4676 0.0196 0.6999 0.7080 0.0226 0.0019 4.0000 36.28 27.01 36.71 0.60 0.02

1-6 Clinopyroxene groundmass Augite 50.99 1.16 1.74 0.02 15.02 0.40 14.88 14.99 0.25 99.45 1.9323 0.0332 0.0677 0.0100 0.0000 0.0090 0.4671 0.0128 0.8405 0.6086 0.0182 0.0006 4.0000 43.37 25.23 31.40 0.64 0.01
15R-1, 88–90 1-3 Clinopyroxene microphenocryst core Aluminian augite 50.65 1.13 2.36 0.05 11.03 0.26 14.41 18.36 0.32 98.57 1.9198 0.0321 0.0802 0.0252 0.0000 0.0127 0.3370 0.0083 0.8142 0.7456 0.0234 0.0015 4.0000 42.45 18.67 38.87 0.71 0.01

1-4 Same clinopyroxene microphenocryst rim Aluminian augite 49.61 1.43 2.97
13.64 0.44 14.54 15.94 0.30 98.86 1.8846 0.0408 0.1154 0.0174 0.0000 0.0386 0.3946 0.0143 0.8232 0.6489 0.0221 0.0000 4.0000 42.89 23.31 33.80 0.68 0.00

3-1 Clinopyroxene groundmass Aluminian augite 48.81 1.83 2.91 0.04 13.66 0.32 12.68 17.83 0.34 98.42 1.8770 0.0530 0.1230 0.0090 0.0000 0.0324 0.4070 0.0103 0.7267 0.7348 0.0256 0.0012 4.0000 38.02 23.53 38.45 0.64 0.01

3-4 Clinopyroxene groundmass Aluminian augite 48.93 1.86 3.36 0.03 12.74 0.26 12.53 19.39 0.40 99.50 1.8564 0.0529 0.1436 0.0067 0.0000 0.0598 0.3446 0.0084 0.7089 0.7882 0.0296 0.0009 4.0000 37.12 21.61 41.27 0.67 0.01

Note: In the Point column, the first number indicates the number of the circle drawn on the thin section, and the second number indicates the sequential number of analyses in that circle. En = enstatite, Fs = ferrosilite, Wo = wollastonite.