Fig. 1From: Geophysical investigation of the Mado Megamullion oceanic core complex: implications for the end of back-arc spreadingGeological and tectonic setting of the Shikoku Basin and the adjacent area. Major magnetic isochrons are shown (Okino 2015). The box shows the survey area of this study. The loci of the Mado Megamullion (MMM) OCC and the Godzilla Megamullion (GMM) are shownBack to article page