4:45 PM - 5:00 PM
*Sharon Bih Kimbi1,2, Wilson Y Fantong3, Samuel N Ayonghe2, Robert Kringel4, Shin-ichi Onodera1 (1.Graduate School of Integrate Arts and Sciences, Hiroshima University, 2.Department of Environmental Science, Faculty of science, University of Buea, 3.Institute of Mining and Geological Research (IRGM), 4.Federal Institute for Geoscience and Natural Resources Bundesanstalt fur Geowissenschaften und Rohstoffe (BGR) PRESS NO & SW)