Fig. 7From: Clockwise rotation of SW Japan and timing of Izanagi–Pacific ridge subduction revealed by arc migrationSpatiotemporal variation of arc igneous activity in NE Japan, with longitude on the horizontal axis because the largest age gradient in NE Japan is in the east–west direction (e.g., Tsuchiya et al. 2015; Yokoyama et al. 2016). Colored circles indicate crystallization ages, and colors correspond to latitude. White circles indicate cooling ages. Note that the east–west direction on the horizontal axis is reversed compared to the map to facilitate a direct comparison with SW Japan in Fig. 14Back to article page