Researcher Information

KURITANI Takeshi

Professor

Deciphering the dynamics of the mantle and magmas from volcanic rocks

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

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Theme

Magma genesis, magmatic differentiation, water circulation in the Earth's interior

FieldIgneous petrology, Geochemistry
KeywordMagma, Volcano, Crust, Mantle, Water

Introduction of Research

I am involved in petrological, geochemical, experimental, and theoretical studies principally aimed at quantitative understanding generation, ascent, evolution, and eruption processes of magmas, differentiation processes of the lunar magma ocean, and evolutionary processes of the Earth.

Representative Achievements

Mantle hydration and the role of water in the generation of large igneous provinces, J. Liu, Q.-K. Xia, T. Kuritani, E. Hanski and H.-R. Yu (2017), Nature Commun., 8, 1824.
Origin of ultra rear-arc magmatism at Rishiri Volcano, Kuril arc, T. Kuritani and M. Nakagawa (2016), Geochem. Geophys. Geosyst., 17.
Intensive hydration of the mantle transition zone beneath China caused by ancient slab stagnation, T. Kuritani, E. Ohtani and J.-I. Kimura (2011), Nature Geosci., 4, 713-716.
Highly unradiogenic lead isotope ratios from the Horoman peridotite in Japan, S. P. K. Malaviarachchi, A. Makishima, M. Tanimoto, T. Kuritani and E. Nakamura (2008), Nature Geosci., 1, 859-863.
Rates of thermal and chemical evolution of magmas in a cooling magma chamber: a chronological and theoretical study on basaltic and andesitic lavas from Rishiri Volcano, Japan, T. Kuritani, T. Yokoyama and E. Nakamura (2007), J. Petrol., 48, 1295-1319.
Academic degreePh.D.
Academic background1991-1995: B.S. Department of Geology, Faculty of Science, University of Tokyo
1995-1997: M.S. Department of Geology, Graduate School of Science, University of Tokyo
1997-2000: PhD. Department of Geology, Graduate School of Science, University of Tokyo
2000-2003: JSPS Postdoctoral Research Fellow
2003-2006: Research Fellow, Institute for Study of the Earth's Interior, Okayama University
2006-2007: Research Fellow, Institute for Geothermal Sciences, Kyoto University
2007-2010: Assistant Professor, Graduate School of Science, Tohoku University
2010-2011: Associate Professor (GCOE), Graduate School of Science, Tohoku University
2011-2014: Associate Professor, Graduate School of Science, Osaka City University
2014- : Associate Professor, Graduate School of Science, Hokkaido University
Affiliated academic societyAmerican Geophysical Union, Geochemical Society, AGU, Geochemical Society
Room addressScience Building 6 #11-03

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

KURITANI Takeshi

Professor

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What is the research theme that you are currently focusing on?

My current main research interest is to understand the mechanisms of super-eruptions that caused global-scale environmental changes. By analyzing the chemical compositions of volcanic ejecta in detail, I am investigating how huge amounts of magma were prepared, what triggered the eruptions, and what unique factors were present to have caused the catastrophic eruptions.

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Please tell us what you think is good about your lab (staff, students, laboratory equipment, the number of papers published, etc.)

Our lab boasts to have the most complete equipment for the observation and geochemical analysis of volcanic rocks among any research and educational institutions in Japan. The students in my lab are supposed to work on research themes independent of the supervisor (i.e. me), and I provide guidance with the goal of having their research results during the master course published as full papers in international journals.

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Please tell us about yourself; things you are good at, your favorites, hobbies, and daily routines.

My hobby is making wooden models of things like five-story pagodas. Since I was a child, I often visited temples in Nara and Kyoto, but since I started working at Hokkaido University, I have not been able to go there as often, so I thought, “In that case, I’ll make them myself and display them in my house.” I use commercially available kits, but I add many parts that are not included in the kits, refine them, and paint them myself, spending more than 1,000 hours to finish each one.

Five-story pagoda model