*Muhammad Sazzadur Rahman¹、Toshiaki Tsunogae^1,2、Qian Liu ^1,3、M. Santosh^4,5、Sam Uthup¹、Prince Mandingaisa⁶、Maideyi Lydia Meck⁶ (1.Graduate School of Life and Environmental Sciences, University of Tsukuba、2.Department of Geology, University of Johannesburg, Auckland Park 2006, South Africa、3.International Research Fellow of Japan Society for the Promotion of Science (Postdoctoral Fellowships for Research in Japan (Standard))、4.School of Earth Sciences and Resources, China University of Geosciences Beijing, 29 Xueyuan Road, Beijing 100083, China、5.Centre for Tectonics Resources and Exploration, Department of Earth Sciences, University of Adelaide, SA 5005, Australia、6.Department of Geology, University of Zimbabwe, Mount Pleasant, Zimbabwe)