Table 2.
Composition of silicate phases.
| Phase | n | SiO2 | MgO | FeO | Al2O3 | CaO | S | Sum |
|---|---|---|---|---|---|---|---|---|
| Quartz specks | 4 | 99.64 (0.49) | 0.20 (0.17) | 1.06 (0.17) | 0.15 (0.06) | 0.05 (0.03) | 0.07 (0.05) | 101.15 (0.23) |
| Silicate melt specks | 9 | 62.86 (0.08) | 19.92 (0.15) | 5.02 (0.05) | 6.44 (0.05) | 4.46 (0.03) | 0.13 (0.01) | 98.84 (0.08) |
| ilicate melt pool | 20 | 61.81 (0.21) | 20.60 (0.44) | 5.01 (0.15) | 6.77 (0.08) | 4.47 (0.24) | 0.14 (0.00) | 98.79 (0.23) |
| Orthopyroxene | 10 | 58.31 (0.22) | 36.38 (0.11) | 4.12 (0.15) | 0.56 (0.02) | 0.37 (0.01) | <DL | 99.73 (0.12) |
| Olivine (bottom) | 12 | 41.47 (0.29) | 52.95 (0.26) | 5.48 (0.24) | 0.12 (0.05) | 0.11 (0.02) | <DL | 100.13 (0.19) |
| Silicate melt (bottom) | 8 | 53.37 (0.42) | 26.45 (1.63) | 6.16 (0.52) | 8.21 (0.55) | 4.28 (0.88) | 0.10 (0.03) | 98.58 (0.83) |
Notes. All compositions are in wt% with 1σ error given in parantheses. n is the number of analytical points. <DL implies the measurements were below the detection limit. Pt contamination in all metallic phases was below the detection limit of approximately 0.07 wt%. At these levels the activity of iron in these metal phases is unaffected (e.g., Steenstra et al. 2018a, and references therein).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.