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Earth, Planets and Space
Fig. 9 | Earth, Planets and Space

Fig. 9

From: Eruption style transition during the 2017–2018 eruptive activity at the Shinmoedake volcano, Kirishima, Japan: surface phenomena and eruptive products

Fig. 9

Dependence of the density (left) and groundmass crystallinity (right) on the plagioclase number density for representative samples (P1, P2, B, and L) from the 2017–2018 eruptions. For samples P1 and P2, the densities were estimated based on volumes measured using three-dimensional (3D) laser scanners and vesicularities measured via microtextural analyses. The density errors were evaluated from both the volume and vesicularity measurements. The plagioclase number density was calculated only for crystals longer than 0.01 mm. Corresponding results for the 2011 eruption (Suzuki et al. 2018) are indicated by the shaded area in both panels

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