1. Research Institute for Humanity and Nature, Kyoto 603-8047, Japan
2. Department of Earth Science, Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan
3. Faculty of Collaborative Regional Innovation, Ehime University, Matsuyama 790-8577, Japan
4. Department of Geology, Universitas Negeri Gorontalo, Gorontalo 96100, Indonesia
5. Faculty of Medicine, Universitas Negeri Gorontalo, Gorontalo 96100, Indonesia
6. Department of Physics, Universitas Negeri Gorontalo, Gorontalo 96100, Indonesia