![The Igneous Rock in Shionomisaki](https://nankikumanogeo.jp/eng/wp-content/uploads/sites/2/pic_geosite94.jpg)
This igneous rock had been formed by a complicated movement of the magma 14-15 million years ago. You can observe the boundary between the igneous rocks that are made of two kinds of magma that contain different chemical ingredients near the Shinomisaki-todai Lighthouse along with pillow-shaped lava and a dike swarm, both of which are outcomes of submarine volcanoes.