Honshu / Name of sample: MS-1
| No. | District | Name of Pyroclastic Deposite | Age |
|---|---|---|---|
| 029 | Ohda, Shimane Pref. | Sanbe pumice flow | ? |
Particle Size Distribution (wt%).
| -0.038mm | -0.075mm | -0.15mm | -0.3mm | -0.6mm | -1.18mm | -2.36mm | -4.75mm |
|---|---|---|---|---|---|---|---|
| 24.7 | 33.7 | 46.0 | 58.4 | 70.0 | 79.5 | 88.0 | 96.0 |
X-ray powder diffraction pattern (F: feldspar, Q: quartz).
Chemical Compositions and Content of Volcanic Glass (wt%).
| SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | Na2O | K2O | Ig.loss | Total | Content of Volcanic Glass |
|---|---|---|---|---|---|---|---|---|---|---|
| 71.74 | 14.13 | 1.93 | 0.18 | 0.90 | 0.48 | 3.34 | 3.55 | 3.45 | 99.70 | 60.16 |
 XRD pattern of separated volcanic glass.  DTG pattern of separated volcanic glass. |
Chemical Compositions of Separated Vocanic Glass (wt%).
| SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | Na2O | K2O | Ig.loss | Total |
|---|---|---|---|---|---|---|---|---|---|
| 72.42 | 13.85 | 1.06 | 0.08 | 0.56 | 0.35 | 3.51 | 4.15 | 4.05 | 100.03 |