Structual Petrology & Tectonics Group, Tokyo Univ.

Members

Prof. S. R. Wallis School of Science, UTokyo Department of Earth & Planetary Science, School of Science, UTokyo
Visiting Researcher: K. Ozawa (Emeritus Professor of University of Tokyo)
Visiting Researcher: T. Nagaya (Associate Professor of Waseda University)
Waseda University Researchers Database Waseda University Structural Geology Lab Visiting Researcher: S. Soejima (Fukada Geological Institute, researcher)
PD: T. Ito, Y. Koyama
D3: T. Morohoshi
D2: A. Takahata
D1: K. Aida (DC1, joint supervision with M. Uno)
M2: Hikaru Hoshi, Keita Takahashi

Former Members

Staff

2019/09-2023/03 Assistant Prof. T. Nagaya (Currently Waseda University, Associate Professor)

Students

2026/03 S. Masuda, K. Aida (M), Y. Koyama (D), T. Ito (D)
2025/03 A. Takahata (M), H. Hoshi (U), K. Takahashi (U)
2024/07 E. Hassan (D)
2024/03 T. Yeo (D), S. Soejima(D), S. Maehara(M), K. Aida (U)
2023/03 K. Yamaoka (D), T. Ito (M), Y. Koyama (M)
2022/03 T. Morohoshi (M), S. Maehara (U)
2021/03 K. Yoshida (M), S. Soejima (M), T. Ito (U), Y. Koyama (U)
2020/03 I. Sakaguchi (D), K. Yamaoka (M)
2019/03 M. Yokota (M), N. Kameda (M)
2018/03 D. Tsang (D), K. Sadamoto (M), N. Hanamoto (M)
2017/03 Y. Harada (M), M. Yokota (U), N. Kameda (U)
2016/03 T. Nagaya (D), H. Kawahara (M), K. Sadamoto (U)
2014/03 T. Kondo (U)
2013/03 H. Mori (D), N. Mori (M)
2012/03 T. Nagaya (M)
2011/03 A. Nishii (M), Y. Inoue (U)
2010/03 S. Endo (D), C. Shirakawa (M), M. Mitsuishi (M)
2009/03 H. Mori (M), A. Nishi (U)
2008/03 H. Kobayashi (M)
2007/03 S. Endo (M), M. Mitsuishi (U)
2006/03 T. Fukunari (M), H. Shimizu (M), H. Kobayashi (U)
2005/03 M. Ohtani (M), S. Endo (U)
2004/03 T. Fukunari (U), H. Shimizu (U)
2003/03 T. Mizukami (D), K. Chikaraishi (U), M. Ohtani (U)
2002/03 Y. Adachi (M), H. Nakajima (U)
2001/03 M. Matsumoto (M)
2000/03 M. Aoya (D), Y. Moriyama (M), Y. Adachi (U), A. Watanabe (U)
1999/03 M. Matsumoto (U)
1998/03 K. Muta (M), T. Makino (M), Y. Moriyama (U)
1996/03 M: Aoya (M)

PD Researchers

2024/04 - 2025/03 Shogo Soejima (Present: Fukada Geological Institute, Researcher)
2023/03/29 - 09/28 Olivia Hogg
2018/03 - 2018/09 Eva Hartung
2014/12 - 2016/12 Nicola Clark
2014/08 - 2014/12 Owen Weller
2013/10 - 2014/02 Daeyeong Kim
2011/07 - 2011/10 Luca Caricchi
2010/05 - 2011/05 Izabella Nowak
2005/04 - 2008/03 Tomoyuki Mizukami

Examples of Recent International Collaboration

Univ. Geneva, Switzerland: Prof. L. Caricchi (development of plutonic systems)
Univ. Southern California, USA: Prof J. P. Platt (development of microstructure in two phase rocks)
Univ. Oxford, UK: Prof. J. D. Blundy (volcanism and natural resources) Univ. Oxford, UK: Prof. M. Kendall, Senior Research Fellow Dr. A. Walker (seismic anisotropy and microstructure)
Carnegie Mellon Univ, USA: Prof. M. DeGraef (development of EBSD systems)

News

20th June 2026

SW took part in the team event at the Japan Veterans International Judo Championships on June 20, where his team took second place after a close final.
Each team consisted of five members, each representing a different age category: 30+, 40+, 50+, 60+, and 70+—no weight limits! SW competed in the 60+ category. Teams gathered from across Japan, Asia, Europe, and the US. SW’s team was very pleased to defeat the strong Tokyo Metropolitan Police Department team and to receive the silver medal.
Click here to see the photo

15th June 2026

SW was elected as President of the Geological Society of Japan. His term will be for two years.

13th February 2026

Graduation congratulations
Three members graduated at the end of March: two new PhDs and one new Masters!
Congratulations to Yukinojo Koyama, Taisuke Ito, and Koki Aida!
Click here to see the photos

In the entrance to science building #1 (L to R: TI, SW, YK, KA )

In front of Sanshiro Ike.

In the thin section lab with Ishihara-san.

13th February 2026

Researchers visiting from Oxford University
A group of researchers visited us from Oxford University in late March to early April to look at the rock magnetism associated with serpentinite in the Sanbagawa belt. We hope this is the start of a fruitful and fun collaboration.
Click here to see the photos

In front of the Akaishi mountain hut. It is now closed after many years of good service to climbers and geologists alike. From L to R: SW, Dongwoo Han (Ph D student) , Redmond Coleman ’Red' (Ph D student) and their supervisor Claire Nichols.

Koki Aida on the Higashiakaishi ultramafic body.

Low-grade folded Sanbagawa belt rocks exposed on the Yoshino River. The bridge in the background is the Minota Ohashi.

31st January 2026

Press release of the recent paper by Nagaya and Wallis.
https://www.s.u-tokyo.ac.jp/en/press/11049/

Structural Petrology & Tectonics Group

Solid Earth Science Group
Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo (UTokyo)

Members

Former Members

Staff

Students

PD Researchers

Examples of Recent International Collaboration