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Fig. 4 | Earth, Planets and Space

Fig. 4

From: Magma ascent and degassing processes of the 2011 and 2017–18 eruptions of Shinmoedake in Kirishima volcano group, Japan, based on petrological characteristics and volatile content of magmas

Fig. 4

Chemical compositions of groundmass in products from the 1716–17, 2011 and 2018 eruptions. a TiO2 vs. SiO2 contents; b Al2O3 vs. SiO2 contents; c FeOt vs. SiO2 contents; d MgO vs. SiO2 contents; e CaO vs. SiO2 contents; and f K2O vs. SiO2 contents. Large circles and error bars show the groundmass compositions of products and their standard deviations, respectively (also shown in Additional file 4). Chemical compositions of melts at pressures of 50–200 MPa calculated with the MELTS program (Gualda et al. 2012; Additional file 9) are also shown. Whole-rock chemical compositions of the products from the 1235, 1716–17, 2011 and 2018 eruptions are also shown using the same symbols in Fig. 2. The small gray circles show whole-rock compositions for products from the younger Kirishima volcanoes (300 ka–4.2 ka)

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