Researcher Information


Associate Professor

Understanding of faulting mechanism by clay mineralogy

Department of Earth and Planetary Sciences, Earth and Planetary System Science


I study elementary processes of rock deformation by field
geology and microscopic techniques

FieldClay mineralogy, Structural geology
KeywordClay minerals, Earthquake, Landslide, Friction, Mechanochemistry, Electron microscopy

Introduction of Research

Clay minerals are major mineral components in the environment of the earth's surface. My students and I study structure, formation mechanisms and physical/chemical properties of clay minerals. We also investigate geologic phenomena such as earthquake and landslide, focusing especially on the role of clay minerals on these processes.

Representative Achievements

Dehydroxylation Kinetics of Clay Minerals and Its Application to Friction Heating Along an Imbricate Thrust in an Accretionary Prism, H. Masumoto, J. Kameda, H. Arima, K. Sugiyama, T. Nagai, Y. Yamamoto, Geochem. Geophys. Geosys., 2018, 9, 2991-3003.
Pelagic smectite as an important factor in tsunamigenic slip along the Japan Trench, J. Kameda, M. Shimizu, K. Ujiie, T. Hirose, M. Ikari, J. Mori, K. Oohashi, G. Kimura, Geology, 2015, 43, 55-58.
Silica diagenesis and its effect on interplate seismicity in cold subduction zones, J. Kameda, S. Hina, K. Kobayashi, A. Yamaguchi, Y. Hamada, Y. Yamamoto, M. Hamahashi, G. Kimura,  Earth Planet. Sci. Lett., 2012, 317, 136-144.
Polytype and morphological analyses of gumbelite, fibrous magnesium-rich illite, J. Kameda, R. Miyawaki, V.A. Drits, T. Kogure, Clays Clay Miner., 2007, 55, 453-466.
XRD and HRTEM analysis of the stacking structure in sudoite, di-trioctahedral chlorite, J. Kameda, R. Miyawaki, R. Kitagawa, T. Kogure, Am. Miner., 2007, 92, 1586-1592.
Academic degreePh.D
Academic background1998 BSc The University of Tokyo
2000 MSc The University of Tokyo
2004 DSc The University of Tokyo
2013 Assistant Professor, Faculty of science, Hokkaido University
Affiliated academic societyThe Geological Society of Japan, The Clay Science Society of Japan, American Geophysical Union
Room addressScience Faculty Building No. 6 10-02