Open Access
Table A.1
Chemical composition of samples analysis by EDS
| Ol-76-H | Ol-68-H | Ol-45-H | Ol-87-R | Px-52-H | Px-30-H | Px-27-H | Px-61-R | |
|---|---|---|---|---|---|---|---|---|
| C | 2.60% | 1.82% | 1.95% | — | 2.14% | 1.72% | 1.19% | — |
| O | 61.36% | 58.34% | 61.01% | 61.35% | 62.30% | 60.14% | 61.27% | 59.54% |
| Na | — | — | — | — | 0.61% | 0.50% | 0.58% | — |
| Mg | 5.41% | 8.66% | 13.37% | 3.14% | 4.24% | 8.16% | 6.60% | 3.37% |
| Al | — | — | — | — | 0.76% | 0.80% | 1.48% | 0.76% |
| Si | 13.46% | 12.47% | 12.73% | 13.69% | 18.50% | 19.00% | 18.46% | 19.97% |
| Ca | — | — | — | — | 3.23% | 4.18% | 5.42% | 3.79% |
| Ti | — | — | — | — | 0.24% | 0.29% | 0.44% | 1.45% |
| Fe | 17.17% | 18.71% | 10.93% | 21.82% | 7.97% | 5.20% | 4.54% | 11.14% |
| Total | 100.00% | 99.70% | 99.99% | 100.00% | 99.99% | 99.99% | 99.98% | 100.02% |
| Note | Fa:76 | Fa:68 | Fa:45 | Fa:87 | Fs:52 | Fs:30 | Fs:27 | Fs:61 |
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