02007_1965/table3
| 試料 | 阿寒層群の安山岩 | 阿寒火山外輪山 | パンケ熔結凝灰岩 | 阿寒火山 中央火口丘 | ||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 * | 10 * | 11 * | 12 * | 13 * | 14 * | |
| SiO2 | 53.18 | 52.43 | 65.87 | 69.19 | 52.70 | 61.64 | 57.54 | 51.54 | 56.05 | 56.49 | 58.53 | 55.29 | 61.97 | 60.39 |
| TiO2 | 0.98 | 1.01 | 0.78 | 0.56 | 0.87 | 0.59 | 0.81 | 0.72 | 0.74 | 0.75 | 0.54 | 0.88 | 0.70 | 0.70 |
| Al2O3 | 18.04 | 17.67 | 14.53 | 14.14 | 18.53 | 15.91 | 18.37 | 18.62 | 16.85 | 16.62 | 16.52 | 17.55 | 16.52 | 16.90 |
| Fe2O3 | 4.81 | 3.08 | 2.43 | 4.09 | 3.53 | 2.79 | 2.07 | 3.38 | 3.69 | 2.61 | 2.68 | 1.90 | 5.99 | 4.12 |
| FeO | 5.39 | 7.28 | 3.51 | 0.57 | 5.69 | 3.64 | 5.54 | 5.96 | 5.51 | 6.24 | 5.09 | 6.06 | 0.55 | 3.29 |
| MnO | 0.18 | 0.19 | 0.13 | 0.12 | 0.19 | 0.15 | 0.11 | 0.18 | 0.19 | 0.18 | 0.16 | 0.17 | 0.12 | 0.19 |
| MgO | 3.16 | 3.86 | 1.38 | 1.31 | 5.02 | 3.19 | 3.21 | 6.05 | 4.91 | 4.66 | 4.60 | 4.57 | 2.41 | 1.98 |
| CaO | 9.00 | 10.34 | 4.75 | 3.71 | 9.31 | 6.33 | 7.55 | 10.56 | 8.58 | 8.47 | 7.34 | 9.05 | 5.25 | 5.08 |
| Na2O | 2.84 | 2.22 | 3.51 | 3.95 | 2.29 | 3.03 | 2.66 | 1.35 | 2.47 | 2.45 | 2.80 | 2.54 | 3.14 | 3.43 |
| K2O | 0.82 | 0.51 | 1.46 | 1.78 | 0.66 | 1.61 | 1.07 | 0.45 | 0.83 | 1.05 | 1.10 | 0.96 | 1.27 | 1.56 |
| P2O5 | 0.16 | 0.11 | 0.34 | 0.10 | 0.13 | 0.08 | 0.09 | 0.08 | 0.12 | 0.12 | 0.17 | 0.16 | 0.12 | 0.29 |
| H2O (+) | 0.68 | 0.42 | 0.75 | 0.30 | 0.56 | 0.64 | 0.64 | 0.50 | 0.49 | 0.56 | 0.69 | 0.54 | 1.77 | 1.66 |
| H2O (-) | 0.68 | 0.32 | 0.44 | 0.08 | 0.26 | 0.08 | 0.43 | 0.30 | 0.17 | 0.23 | 0.42 | 0.25 | 0.80 | 1.16 |
| Total | 99.92 | 99.44 | 99.88 | 99.90 | 99.74 | 99.68 | 100.09 | 99.69 | 100.60 | 100.43 | 100.64 | 99.92 | 100.61 | 100.75 |
| Colour index ** | 26.1 | 32.1 | 13.3 | 9.8 | 29.2 | 19.6 | 22.2 | 32.7 | 29.4 | 29.8 | 25.9 | 29.1 | 13.9 | 15.1 |
| Analyst | S.Y. | Y.K. | Y.K. | S.Y. | S.Y. | S.Y. | Y.K. | S.Y. | T.K. | T.K. | T.K. | T.K. | T.K. | T.K. |