Table 5. Composition of experimental plagioclase.
| Temp (ºC) |
An (mol%) |
SD | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Run # | N | SiO2 (wt%) |
TiO2 (wt%) |
Al203 (wt%) |
FeO (wt%) |
MgO (wt%) |
CaO (wt%) |
Na2O (wt%) |
K2O (wt%) |
SD | SiO2 | TiO2 | Al2O3 | FeO | MgO | CaO | Na2O | K2O | ||
| 152-917A-27R-2 (Piece 4, 38-43 cm) |
||||||||||||||||||||
27R2-7 |
1168 |
8 |
53.81 |
0.06 |
29.46 |
1.10 |
0.17 |
12.26 |
4.26 |
0.17 |
60.8 |
5.6 |
1.53 |
0.03 |
0.95 |
0.11 |
0.04 |
1.03 |
0.64 |
0.05 |
27R2-9 |
1158 |
6 |
54.29 |
0.08 |
28.79 |
1.20 |
0.26 |
11.57 |
4.49 |
0.16 |
58.2 |
4.9 |
1.07 |
0.03 |
0.98 |
0.10 |
0.05 |
1.05 |
0.50 |
0.03 |
27R2-10 |
1148 |
4 |
54.06 |
0.13 |
28.06 |
1.27 |
0.35 |
11.48 |
4.40 |
0.21 |
58.3 |
5.6 |
1.50 |
0.07 |
0.81 |
0.08 |
0.08 |
1.24 |
0.54 |
0.04 |
27R2-11 |
1136 |
5 |
54.15 |
0.11 |
28.72 |
1.29 |
0.17 |
11.59 |
4.50 |
0.21 |
58.0 |
2.7 |
0.69 |
0.05 |
0.72 |
0.07 |
0.03 |
0.56 |
0.28 |
0.05 |
27R2-12 |
1130 |
8 |
55.61 |
0.09 |
27.74 |
1.42 |
0.26 |
10.97 |
4.85 |
0.22 |
54.8 |
2.2 |
0.64 |
0.04 |
0.43 |
0.19 |
0.06 |
0.49 |
0.23 |
0.02 |
27R2-13 |
1120 |
5 |
55.17 |
0.08 |
27.92 |
1.43 |
0.16 |
10.94 |
4.86 |
0.27 |
54.6 |
3.3 |
0.70 |
0.04 |
0.51 |
0.15 |
0.03 |
0.63 |
0.35 |
0.06 |
27R2-8 |
1111 |
10 |
55.81 |
0.11 |
28.37 |
1.41 |
0.17 |
10.96 |
4.95 |
0.31 |
54.0 |
2.4 |
0.89 |
0.05 |
0.68 |
0.15 |
0.03 |
0.60 |
0.24 |
0.03 |
27R2-19 |
1101 |
16 |
55.42 |
0.11 |
27.35 |
1.27 |
0.18 |
10.47 |
5.07 |
0.32 |
52.3 |
2.4 |
0.71 |
0.04 |
0.77 |
0.17 |
0.07 |
0.39 |
0.35 |
0.04 |
| 152-918D-108R-1 (Piece 2B, 54-58 cm) |
||||||||||||||||||||
108R1-5 |
1186 |
6 |
50.43 |
0.08 |
31.94 |
1.18 |
0.32 |
15.26 |
2.58 |
0.03 |
76.4 |
1.2 |
0.15 |
0.06 |
1.35 |
0.15 |
0.12 |
0.23 |
0.12 |
0.01 |
108R1-6 |
1177 |
11 |
49.36 |
0.07 |
31.24 |
1.11 |
0.24 |
15.10 |
2.74 |
0.06 |
75.0 |
1.6 |
0.85 |
0.04 |
0.49 |
0.08 |
0.03 |
0.76 |
0.13 |
0.02 |
108R1-7 |
1168 |
9 |
50.77 |
0.06 |
28.77 |
1.35 |
0.33 |
13.97 |
3.30 |
0.04 |
69.9 |
3.8 |
1.27 |
0.03 |
0.85 |
0.23 |
0.10 |
0.73 |
0.42 |
0.01 |
108R1-9 |
1158 |
5 |
50.70 |
0.07 |
31.29 |
1.13 |
0.21 |
14.95 |
3.04 |
0.04 |
72.9 |
2.6 |
0.73 |
0.05 |
0.75 |
0.05 |
0.06 |
0.53 |
0.29 |
0.01 |
108R1-10 |
1148 |
8 |
50.85 |
0.06 |
29.89 |
1.04 |
0.21 |
13.60 |
3.41 |
0.04 |
68.6 |
3.9 |
1.43 |
0.01 |
1.15 |
0.16 |
0.02 |
0.79 |
0.42 |
0.01 |
108R1-11 |
1136 |
5 |
50.64 |
0.06 |
30.67 |
1.23 |
0.18 |
14.16 |
3.25 |
0.06 |
70.4 |
6.4 |
1.68 |
0.03 |
1.05 |
0.23 |
0.07 |
1.28 |
0.73 |
0.02 |
108R1-12 |
1130 |
6 |
51.51 |
0.08 |
30.79 |
1.14 |
0.14 |
13.88 |
3.57 |
0.07 |
68.0 |
4.8 |
1.39 |
0.03 |
1.13 |
0.06 |
0.04 |
0.99 |
0.55 |
0.03 |
108R1-8 |
1111 |
5 |
53.69 |
0.06 |
29.11 |
1.21 |
0.11 |
12.64 |
3.94 |
0.08 |
63.6 |
7.9 |
0.92 |
0.04 |
0.72 |
0.16 |
0.03 |
0.44 |
0.41 |
0.01 |
108R1-21 |
1103 |
6 |
51.61 |
0.08 |
29.91 |
1.00 |
0.17 |
13.91 |
3.75 |
0.08 |
66.9 |
6.3 |
2.08 |
0.29 |
1.10 |
0.25 |
0.11 |
1.46 |
0.71 |
0.04 |
| 163-989B-10R-7 (Piece 5B, 55-59 cm) |
||||||||||||||||||||
989B-4 |
1172 |
6 |
49.48 |
0.05 |
30.98 |
1.14 |
0.25 |
14.90 |
3.26 |
0.03 |
71.5 |
4.8 |
1.49 |
0.03 |
0.84 |
0.24 |
0.03 |
0.97 |
0.56 |
0.02 |
989B-10 |
1162 |
7 |
49.92 |
0.07 |
30.68 |
1.33 |
0.26 |
14.37 |
3.44 |
0.03 |
69.7 |
3.5 |
1.03 |
0.03 |
0.47 |
0.19 |
0.02 |
0.70 |
0.42 |
0.02 |
989B-9 |
1158 |
7 |
50.45 |
0.05 |
30.59 |
1.42 |
0.38 |
14.45 |
3.32 |
0.04 |
70.5 |
2.6 |
0.69 |
0.02 |
0.52 |
0.19 |
0.19 |
0.67 |
0.26 |
0.02 |
989B-5 |
1125 |
6 |
52.05 |
0.05 |
29.88 |
1.51 |
0.21 |
13.68 |
3.82 |
0.04 |
66.3 |
3.5 |
1.01 |
0.03 |
0.66 |
0.20 |
0.05 |
0.79 |
0.38 |
0.02 |
989B-3 |
1101 |
9 |
53.01 |
0.07 |
30.19 |
1.44 |
0.18 |
12.94 |
4.20 |
0.06 |
62.8 |
3.9 |
1.27 |
0.04 |
0.78 |
0.15 |
0.05 |
0.70 |
0.49 |
0.04 |
Notes: Averages of individual analyses and associated one standard deviations (SD) of oxides and An. Temp = the experimental temperature in ºC. N = number of analyses.