Table 1 NWA 2995 plagioclase major-elements as measured by EMP) and trace-elements (by SIMS) For SIMS data % Relative Standard deviation (%RSD) is also shown. Reference images of these clasts are shown in Fig. S7.
NWA 2995 Clast 1 | NWA 2995 Clast 2 | NWA 2995 Clast 3 | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Plag 1 | %RSD | Plag 2 | %RSD | Plag 3 | %RSD | Plag 4 | %RSD | Plag 7 | %RSD | Plag 8 | %RSD | Plag 9 | % RSD | Plag 10 | % RSD | Plag 11 | %RSD | Plag 12 | %RSD | |
EMPA (wt%) | ||||||||||||||||||||
SiO2 | 44.6 | 44.6 | 42.7 | 44.4 | 43.3 | 43.9 | 43.8 | 43.4 | 43.2 | 43.5 | ||||||||||
Al2O3 | 35.3 | 35.3 | 34.3 | 35.6 | 35.8 | 35.9 | 36.4 | 35.7 | 34.9 | 34.7 | ||||||||||
MgO | 0.13 | 0.13 | 0.10 | 0.06 | 0.08 | 0.10 | 0.07 | 0.08 | 0.03 | 0.04 | ||||||||||
CaO | 19.4 | 19.4 | 19.1 | 19.6 | 19.5 | 19.1 | 19.6 | 19.1 | 20.0 | 20.0 | ||||||||||
FeO | 0.34 | 0.34 | 0.26 | 0.26 | 0.10 | 0.09 | 0.10 | 0.21 | 0.11 | 0.13 | ||||||||||
Na2O | 0.60 | 0.60 | 0.46 | 0.50 | 0.37 | 0.52 | 0.38 | 0.39 | 0.30 | 0.30 | ||||||||||
K2O | 0.02 | 0.02 | 0.06 | 0.01 | 0.03 | 0.06 | 0.02 | 0.06 | 0.02 | 0.02 | ||||||||||
Total | 100.4 | 100.4 | 96.9 | 100.4 | 99.2 | 99.7 | 100.3 | 99.0 | 98.6 | 98.7 | ||||||||||
SIMS (ppm) | ||||||||||||||||||||
Ti | 100.3 | 1 | 294.6 | 1 | 139.0 | 1 | 88.4 | 1 | 201.0 | 1 | 83.8 | 1 | 243.1 | 1 | 73.1 | 1 | 230.4 | 1 | 89.0 | 1 |
Sr | 144.3 | 0.4 | 268.1 | 0.3 | 200.1 | 0.3 | 197.2 | 0.3 | 215.0 | 0.3 | 195.4 | 0.3 | 220.7 | 0.3 | 234.2 | 0.3 | 171.3 | 0.3 | 172.1 | 0.4 |
Y | 0.78 | 4 | 1.59 | 3 | 0.47 | 4 | 0.35 | 5 | 1.55 | 3 | 1.44 | 3 | 1.66 | 2 | 0.41 | 5 | 0.85 | 3 | 0.27 | 7 |
Ba | 18.60 | 2 | 35.46 | 1 | 16.13 | 2 | 13.93 | 2 | 64.68 | 1 | 34.83 | 1 | 74.85 | 1 | 23.63 | 1 | 10.34 | 2 | 8.83 | 2 |
La | 0.54 | 6 | 1.26 | 4 | 0.62 | 6 | 0.37 | 7 | 2.48 | 3 | 1.00 | 5 | 3.31 | 3 | 0.43 | 7 | 0.21 | 10 | 0.20 | 11 |
Ce | 1.20 | 5 | 3.06 | 3 | 1.34 | 4 | 0.86 | 5 | 5.38 | 2 | 2.41 | 3 | 6.96 | 2 | 0.87 | 5 | 0.48 | 7 | 0.42 | 9 |
Pr | 0.14 | 11 | 0.43 | 7 | 0.13 | 11 | 0.11 | 13 | 0.63 | 6 | 0.32 | 8 | 0.73 | 5 | 0.11 | 13 | 0.06 | 17 | 0.05 | 20 |
Nd | 0.73 | 15 | 2.09 | 9 | 0.72 | 14 | 0.45 | 18 | 3.10 | 8 | 1.41 | 11 | 3.28 | 7 | 0.54 | 17 | 0.39 | 19 | 0.23 | 28 |
Sm | 0.14 | 29 | 0.54 | 15 | 0.15 | 27 | 0.06 | 42 | 0.57 | 16 | 0.32 | 19 | 0.52 | 14 | 0.12 | 30 | 0.12 | 31 | 0.05 | 50 |
Eu | 0.78 | 7 | 1.94 | 5 | 1.13 | 6 | 0.96 | 6 | 1.19 | 6 | 1.18 | 5 | 1.33 | 5 | 1.10 | 6 | 0.85 | 7 | 0.82 | 8 |
An % | 94.6 | 94.6 | 95.5 | 95.6 | 96.5 | 95.0 | 96.5 | 96.1 | 97.2 | 97.2 | ||||||||||
Ab % | 5.3 | 5.3 | 4.1 | 4.4 | 3.3 | 4.6 | 3.4 | 3.5 | 2.6 | 2.6 | ||||||||||
Or % | 0.1 | 0.1 | 0.4 | 0.1 | 0.2 | 0.3 | 0.1 | 0.4 | 0.1 | 0.1 | ||||||||||
Mg # | 40.9 | 40.9 | 40.2 | 29.1 | 57.4 | 66.0 | 54.4 | 39.6 | 29.6 | 33.2 | ||||||||||
GPa* | 10 | 7 | 8 | 11 | 14 | 9 | 9 | 3 | 12 | 5 | ||||||||||