Table 3. Summary of run conditions, phase relations, and phase proportions for cooling rate experiments.
Run # |
Dwell Temp. (șC) | Dwell Time (min) | Cooling Rate (șC/hr) | Final Temp. (șC) | Phase assemblage | Visual Mode | |||
---|---|---|---|---|---|---|---|---|---|
Gl + mx | Ol | Pl | Aug | ||||||
60 |
1196 |
62 |
10 |
1173 |
Gl |
1.00 |
|||
37 |
1195 |
57 |
10 |
1149 |
Gl, ol, pl (ox) |
0.86 |
0.03 |
0.01 |
|
31 |
1196 |
70 |
10 |
1102 |
Ol, pl, aug (ox) |
0.20 |
0.45 |
0.35 |
|
12 |
1196 |
60 |
10 |
1054 |
Ol, pl, aug (ox) |
0.13 |
0.45 |
0.42 |
|
17 |
1197 |
62 |
10 |
1006 |
Ol, pl, aug (ox) |
0.10 |
0.50 |
0.40 |
|
63 |
1195 |
59 |
50 |
1171 |
Gl |
1.00 |
|||
32 |
1196 |
69 |
50 |
1150 |
Gl, pl |
0.99 |
0.01 |
||
64 |
1195 |
59 |
50 |
1127 |
Gl, pl |
0.97 |
0.03 |
||
23 |
1196 |
60 |
50 |
1104 |
Gl, pl, aug (ox) |
0.88 |
0.07 |
0.05 |
|
41 |
1195 |
58 |
50 |
1054 |
Mx, pl, aug (ox) |
0.55 |
0.20 |
0.25 |
|
11 |
1196 |
60 |
50 |
1006 |
Mx, pl, aug, ol (ox) |
0.43 |
0.25 |
0.30 |
0.02 |
38 |
1194 |
57 |
100 |
1149 |
Gl |
1.00 |
|||
61 |
1195 |
60 |
100 |
1123 |
Gl, pl (ox) |
0.95 |
0.05 |
||
24 |
1196 |
60 |
100 |
1102 |
Gl, pl, aug |
0.88 |
0.07 |
0.05 |
|
62 |
1195 |
60 |
100 |
1051 |
Mx, pl, aug (ox) |
0.70 |
0.10 |
0.20 |
|
16 |
1199 |
59 |
100 |
1008 |
Mx, pl, aug (ox) |
0.70 |
0.10 |
0.20 |
|
34 |
1195 |
62 |
1000 |
1151 |
Gl |
1.00 |
|||
33 |
1196 |
62 |
1000 |
1104 |
Gl |
1.00 |
|||
59 |
1194 |
59 |
1000 |
1077 |
Gl, pl, aug |
0.93 |
0.05 |
0.02 |
|
40 |
1194 |
55 |
1000 |
1040 |
Gl, pl, aug (ox) |
0.65 |
0.10 |
0.25 |
|
26 |
1197 |
58 |
1000 |
1008 |
Gl, mx, pl, aug (ox) |
0.05 |
0.47 |
0.18 |
0.30 |
78 |
1194 |
59 |
2000 |
1074 |
Gl, pl, aug (ox) |
0.95 |
0.03 |
0.02 |
|
79 |
1194 |
59 |
2000 |
1027 |
Gl, mx, pl, aug (ox) |
0.30 |
0.30 |
0.10 |
0.30 |
Notes: Abbreviations of experimental phase assemblages are gl = glass, mx = microcrystalline matrix of pyroxene + plagioclase ± olivine, ol = olivine, pl = plagioclase, aug = augite, and ox = oxide. Visual mode excludes oxides (usually 0.0% to 2.5%) and renormalized to unity.