Nagoya University Global COE Program: From Earth System Science to Basic and Clinical Environmental Studies

BCES

Program Members

Simon WALLIS

Name WALLIS, SIMON (Simon WALLIS) WALLIS, SIMON (Simon WALLIS)
Position, Department Professor, Department of Earth and Environmental Sciences, Graduate School of Environmental Studies
Office Room 420, Graduate School of Science / School of Science, Building E
E-mail
Homepage Lab HP
Research Keywords Tibet, Tectonics, Lakes, Structural Geology

Message

My main field of research is Tibet, and in particular the lakes within Tibet. These lakes have gradually been becoming smaller, over tens of thousands of years. By looking at the way in which lakes change over such a long timescale, we can discover what kind of climatic changes have occurred. My research places me, in the context of this GCOE program, in the diagnostic sphere of Environmental Studies. If I were, however, to continue my research in these fields, then it would simply be business as usual. In this program, my research will take on new direction as I form teams with faculty and student with different areas of expertise. I am looking forward to the new and different ideas and approaches that working with diverse disciplines will bring about.

Research Themes

My research aims to link together climate change phenomena, which has attracted much interest in recent years, with my own area of expertise, continental tectonics; it focuses on formation mechanisms in the Tibetan Plateau. The Tibetan Plateau contains many lake shorelines, which are outstanding makers of past sea lines; these provide us with a time scale resolution high enough to rival tree growth rings. They are eminently appropriate for the examination of distribution changes in lake shorelines and crustal deformations in Tibet. Through the integration of data from field research, satellite image analysis and quaternary dating, I intend to clarify the transformations undergone by Tibetan lakes since the period (approx. 20,000 years ago) when they were at their largest.

↓ Click to enlarge

Image 1. Lacustrine Terraces in Tibet


Image 2. Shore Platforms and Wave-Eroded Rocks

Biography

1983 B.Sc. Geology & Mineralogy, University of Oxford
1988 D.Phil., Structural Geology, University of Oxford
1989 - 1992 Research Fellowship (Japan Society for the Promotion of Science/European Scientific Training Program 5), Graduate School of Science, Kyoto University
1993 - 1994 Financial Products Dealer, Credit Commercial de France (Tokyo Branch)
1994 - 2000 Research Associate, Graduate School of Science, Kyoto University
Jan 2001 - ongoing Associate Professor, Graduate School of Environmental Science, Nagoya University

Papers & Publications

  • Mizukami, T., Wallis, S. R. & Yamamoto, J. 2004. Natural examples of olivine lattice preferred orientation with a flow-normal a-axis maximum. Nature 427, 432-436.
  • Wallis, S. R., Moriyama, Y. & Tagami, T. 2004. Exhumation rates and age of metamorphism in the Sanbagawa belt: new constraints from zircon fission track analysis. Journal of Metamorphic Geology 22, 17-24.
  • Matthews, J., Wallis, S. R. & Yamaguchi, Y. 2004. ASTER views a high altitude Tibetan lake in stereo. EOS 85, 435-440.
  • Aoya, M., Wallis, S. R., Kawakami, T., Lee, J. & Wang, Y. 2004. The Malashan metamorphic complex in southern Tibet: dominantly top to the north deformation and intrusive origin of its associated granites. Himalayan Journal of Sciences 2, 92-93.
  • Wallis, S. R., Tsuboi, M., Suzuki, K., Fanning, M., Jiang, L. & Tanaka, T. 2005. Role of partial melting in the evolution of the Sulu (eastern China) ultrahigh-pressure belt. Geology 33, 129-132.
  • Aoya, M., Wallis, S. R., Terada, K., Lee, J., Kawakami, T., Wang, Y. & Heizler, M. 2005. North-south extension in the Tibetan crust triggered by granite emplacement. Geology 33, 853-856.
  • Mizukami, T. & Wallis, S. R. 2005. Micro- and mesostructural constraints on the tectonic evolution of the Higashiakaishi garnet peridotite mass in southwest Japan. Tectonics 24TC6012, doi:10.1029/2004TC001733
  • Aoya, M., Tsuboi, M. & Wallis, S. R. 2006. Origin of eclogitic metagabbro mass in the Sambagawa belt: geological and geochemical constraints. Lithos 89, 107-134.
  • Otani, M. & Wallis, S. R. 2006. Quartz lattice preferred orientation patterns and static recrystallization: natural examples from the Ryoke belt, Japan. Geology 34,561-564.
  • Aoya, M., Wallis, S. R., Kawakami, T., Lee, J., Wang, Y. & Maeda, H. 2006. The Malashan metamorphic complex in south Tibet: comparative study with the Kangmar dome with special reference to kinematics of deformation and origin of associated granites. Geological Society of London Special Publications 248,471-495.
  • Hacker, B., Wallis, S., Ratschbacher, L., Grove, M. & Gehrels, G. 2006. High-Temperature Geochronology Constraints on the Tectonic History and Architecture of the Ultrahigh-Pressure Dabie-Sulu Orogen. Tectonics 25, TC5006, doi:10.1029/2005TC001937.
  • Fukunari, T. & Wallis, S. R. 2007.Structural evidence for large-scale top-to-the-north normal displacement along the Median Tectonic Line in southwest Japan. Island Arc 16, 243-261.
  • Mizukami, T., Kagi, H., Wallis, S. R. & Fukura, S. 2007. Pressure-induced change in the compressional behavior of the O-H bond in chrysotile: A Raman high-pressure study up to 4.5 GPa. American Mineralogist 92, 1456-1463.
  • Kawakami, T., Aoya, M., Wallis ,S., Lee, J., Terada, K., Wang, Y., & Heizler, M. 2007. Contact metamorphism in the Malashan dome, North Himalayan gneiss domes, southern Tibet: An example of shallow extensional tectonics in the Tethys Himalaya. Journal of Metamorphic Geology 25, 831-853.
  • Adachi, Y. & Wallis, S. 2008. Ductile deformation and development of andalusite microstructures in the Nukata area: constraints on the metamorphism and tectonics of the Ryoke belt. Island Arc 17, 41-56.
  • Mizukami, T., Wallis, S., Enami, M. & Kagi, H. 2008. Forearc diamond from Japan. Geology 36, 219-222.
  • Wallis, S. R., Anczkiewicz, R., Endo, S., Aoya, M., Platt, J. P, Thirlwall, M. & Hirata, T. 2009. Plate movements, ductile deformation and geochronology of the Sanbagwa belt, SW Japan: tectonic significance of 89-88 Ma Lu-Hf eclogite ages. Journal of Metamorphic Geology 27, 93?105.
  • Aoya, M., Mizukami, T., Uehara, S.-I. and Wallis, S. R. 2009. High-P metamorphism, pattern of induced flow in the mantle wedge, and the link with plutonism in paired metamorphic belts. Terra Nova 21, 67-73
  • Endo, S., Wallis, S. R., Hirata, T., Anczkiewicz, R., Platt, J. P., Thirlwall, M. & Asahara, Y. 2009. Age and early metamorphic history of the Sanbagawa belt: Lu-Hf and P-T constraints from the Western Iratsu eclogite. Journal of Metamorphic Geology 27, 371-384.
  • Itaya, T., Hyodo, H., Tsujimori, T., Wallis, S., Aoya, M., Kawakami, T & Gouzu, C. 2009. Regional-scale excess Ar wave in Barrovian type metamorphic belt, eastern Tibetan Plateau. Island Arc 18, 293-305.
  • Itaya, T. & Wallis, S. R. (ed.) 2009. Microchronology and microgeochemistry: problems, perspectives and geological applications. Island Arc 18 No. 2.
  • Aitchison, J. & Wallis, S. R. (ed.) 2009. Papers arising out of the 22nd Himalaya-Karakorum-Tibet workshop (HKT22). Island Arc 18.

Lecture Courses Taught

General Education: Basic Earth Science II (for School of Sciences, School of Agricultural Sciences students)
2&3 Year Students (joint) : Methods in Field Geology, Field Geology, Petrology Experiments, Petrology, Evolution of Crust, geodynamics
Short-Term Program for Academic Exchange(NUPACE):Earthquakes and Seismic Risk
Graduate: Geodynamics, Dynamics of the Sun-Earth-Life Interactive System 1 (A-F), 2 (A-F)

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