Structural Petrology & Tectonics Group

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

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 DatabaseWaseda University Structural Geology Lab D3: T. Morohoshi, T. Ito (DC2), Y. Koyama (DC2)
D1: A. Takahata
M2: S. Masuda, K. Aida (DC1 from April 2026)
M1: Hikaru Hoshi, Keita Takahashi

Former Members

  • Staff

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

  • Students

    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

29th December 2025

Prof Wallis attended the recent AGU meeting in New Orleans.
Click here for details


Photo 1: The entrance to the conference hall where the AGU meeting was held. I learnt the meandering blue line on AGU designs represents the Mississippi River. I like the imagery and mention it in my foreword from the President published in next month's JpGU mail news.

Photo 2: The President of JpGU has the job of presenting one of the academic awards and has to dress the part. Here in front of the JpGU booth.

Photo 3: SW with the president of AGU, Brandon Jones, and the 2025 recipient of the Asahiko Taira Prize for Ocean Drilling, Christine Regalla.

Photo 4: The Cajun food was great. The French influence is still there and here we are eating boudin sausages—the origin for the boudin structures in rocks!

4th November 2025

Simon Wallis and Yukinojo Koyama went to America. First to use the SIMS at ASU then to Catalina Island for a field trip and finally attending the annual Geological Society of America meeting in San Antonio, Texas.
Click here for details


Photo 1: Yukinojo Koyama makes a start at analysing on the SIMS. The machine and YK are almost the same age!

Photo 2: The entrance to the GSA meeting in San Antonio.

Photo 3: Folded veins in metasediments of Catalina Island. They seem to be folded in all directions!

Photo 4: Large garnets in a garnet amphibolite block used at the local airport.

Photo 5: Talc rosettes in a block of metaperidotite at the airport.

Photo 6: Actinolite rosettes in a metamorphosed peridotite

Photo 7: Tightly folded metachert

Photo 8: Field trip leader, John Platt with two generations of academic offspring

21st July 2025

A new paper was published authored by T. Nagaya and S. Wallis
Details are in the list of recent research papers.

21st July 2025

Thomas's recent paper in JGR was selected as an editor's highlight paper!
See EOS https://eos.org/editor-highlights/creep-cavitation-may-lead-to-earthquake-nucleation

21st July 2025

Some photos of some recent trips away
Click here for details


Photo 1: A big advertisement for my talk at TGA (Taiwan Geosciences Assembly 2025)

Photo2: Receiving a memento of the occaision from C C Wu, President of the Chinese Geoscience Union in Taiwan (TCGU).

Photo 3: At the 100th anniversary celebration since the founding of the Geographical Associaion of Japan. Masaru Yamaguchi of NHK was acting as MC.

Photo 4: Summer excursion to the serpentinite in the eastern most part of the Sanbagawa belt. It's hot!

Photo 5: The Sanbagawa belt in the Ranzan area. The piedmontite and folds were great.

Photo 6: Barbecue at the end of day at Nagatoroso.

Photo 7: Field work around Kamabuseyama. This time with just the three of us.

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Publications

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Books and Special Issues

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