Date and location | Eruption stylea | Sample descriptionb | Sampling points in Fig. 1 | Sample name in this studyc | Abbreviation for inclusion No | MI analysisd | |
---|---|---|---|---|---|---|---|
1235 eruption at Ohaci volcano | Magmatic | Scoria (150 mm) | F | 1235S | TS | 4/4 | |
1716–17 eruptions at Shinmoedake | Phreatic to magmatic | Gray pumices (~ 0.5 mm) | 1716-17GP | KP | 4/16 | ||
Phreatic to magmatic | White pumices | 1716-17WP | |||||
2011 eruptions at Shinmoedake | |||||||
19 January | Preatomagmatic | Gray pumices (~ 0.5 mm) | 2011-1PP | 11-1P | 7/10 | ||
26–27 January (event P2) | Subplinian | Gray pumices (16 ~ 20 mm) | 2011-2SGP | 11-2SG | 18/31 | ||
26–27 January (event P2) | Subplinian | White pumices (2–12 mm) | 2011-2SWP | 11-2SW | 0/5 | ||
26–27 January (event P3) | Subplinian | Gray pumices (16 ~ 20 mm) | 2011-3SGP | 11-3SG | 0/10 | ||
1 February | Vulcanian and lava flow | A bomb | 2011-4VB | 11-4 V | 7/12 | ||
14 February | Vulcanian | A lapillus (~ 30 mm) | 2011-5VL | 11-5 V | 0/7 | ||
13 March | Vulcanian | Ash particles (1–3 mm) | 2011-6VA | 11-6 V | 0/2 | ||
18 April | Vulcanian | Lapilli (5–10 mm) | 2011-7VL | 11-7 V | 0/2 | ||
29 June | Continuous ash emission | Ash particles (0.25–0.50 mm, P, S and GG-types) | 2011-8A | 11–8 | |||
31 August | Continuous ash emission | Ash particles (0.25–0.50 mm, S and GG-types) | 2011-9A | 11–9 | |||
2018 eruptions at Shinmoedake | |||||||
6 March | Vulcanian and lava flow | Gray pumices (1 ~ 10 mm) | A | 2018-1VGP | 18-1 V | 9/24 | |
6 March | Vulcanian and lava flow | Scoria (1 ~ 10 mm) | A | 2018-1VS | |||
9 March | Vulcanian and lava flow | Gray pumices (2 ~ 10 mm) | B | 2018-2VGP | |||
9 March | Vulcanian and lava flow | Scoria (2 ~ 10 mm) | B | 2018-2VS | |||
March | Vulcanian and lava flow | Ballistic blocks (3 blocks) | C, D | 2018-3BB1, BB2, BB3 | |||
March | Vulcanian and lava flow | Dark-gray and lithic lava fragments | E | 2018-4L1, L2 | |||
March | Vulcanian and lava flow | A gray and porous lava fragment | E | 2018-4L3 | |||
March | Vulcanian and lava flow | A banded and porous lava fragment | E | 2018-4L4, L5 |