Fig. 10From: Pre-eruption magmatic processes and magma plumbing system at Hachijo-Nishiyama volcano, Izu–Bonin arc, JapanAl2O3–MgO diagram for the subaerial Nishiyama volcanic products. For sample #168-1 (FrL), the compositional vectors resulting from the fractionation of olivine (ol), clinopyroxene (cpx), orthopyroxene (opx), and plagioclase (pl) are shownBack to article page