Fig. 6From: Pre-eruption magmatic processes and magma plumbing system at Hachijo-Nishiyama volcano, Izu–Bonin arc, JapanThe temporal variation of the whole-rock a FeO*/MgO ratios, b Zr/Y ratios, c La/Sm ratios, and d 208Pb/204Pb ratios of the subaerial Nishiyama volcanic products. The vertical axis is not scaledBack to article page