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Progress in Earth and Planetary Science
Fig. 4 | Progress in Earth and Planetary Science

Fig. 4

From: Geochemical characteristics of back-arc basin lower crust and upper mantle at final spreading stage of Shikoku Basin: an example of Mado Megamullion

Fig. 4

Elemental distribution map of YK18-07-6K-1515-R14 oxide gabbro. Analytical areas are shown in Fig. 3b. An accelerating voltage of 15 kV, a probe current of 70 nA, a probe diameter of 1 μm, a stepping size of 9 µm, and measurement time of 80 ms were adopted for the elemental distribution map analyses by EPMA at AORI, the University of Tokyo. Abbreviations: Amp = amphibole, Chl = chlorite, Cpx = clinopyroxene, Ed = edenite, Ilm = ilmenite, Mag = magnetite, Par = pargasite, and Pl = plagioclase

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