Tokyo Gakugei University
Ganko Lab
Structural Petrology & Geology + Rock Mineralogy

JAPANESE

Achievements

Publications Presentations

Publications

  1. Deformation mechanisms and fluid conditions of mélange shear zones associated with seamount subduction, Madison Frank, Kohtaro Ujiie, Ginta Motohashi and Takayoshi Nagaya, Progress in Earth and Planetary Science, 11:34, https://doi.org/10.1186/s40645-024-00641-y, 2024
  2. Deformation-induced, retrograde transformation of kyanite to andalusite: An example of felsic granulite in the southern Bohemian Massif, Takuro Yoshioka, Kyuichi Kanagawa, Yoshikuni Hiroi b, Takao Hirajima, Martin Svojtka, Tomokazu Hokada, Simon R. Wallis, Takayoshi Nagaya, Akira Miyake, Tectonophysics, 877, https://doi.org/10.1016/j.tecto.2024.230293, 2024
  3. Ultramafic Rocks from the Sanbagawa Belt: Records of Mantle Wedge Processes, Atsushi Okamoto, Takayoshi Nagaya, Shunsuke Endo, and Tomoyuki Mizukami, Elements, 20, pp. 83-88, https://doi.org/10.2138/gselements.20.2.83, 2024
  4. Mineralogical aspects of asteriscus of goldfish (Carassius auratus) consisting of vaterite, Gen TAKAHASHI , Taiga OKUMURA, Takayoshi NAGAYA, Michio SUZUKI, Toshihiro KOGURE, Journal of Mineralogical and Petrological Sciences, 119, https://doi.org/10.2465/jmps.231206, 2024
  5. Duplex Underplating, Sediment Dehydration and Quartz Vein Mineralization in the Deep Tremor Source Region, Kohtaro Ujiie, Naoki Nishiyama, Hisaki Yamamoto, Minoru Yamashita, Takayoshi Nagaya, Takashi Sano, Yui Kouketsu, Journal of Geophysical Research: Solid Earth, 129, https://doi.org/10.1029/2023JB027901, 2024
  6. Subduction plate interface shear stress associated with rapid subduction at deep slow earthquake depths: example from the Sanbagawa belt, southwestern Japan, Koyama, Y., Wallis, S. R., & Nagaya T, Solid Earth, 15, pp. 143-166, https://doi.org/10.5194/se-15-143-2024, 2024
  7. Dehydration of brucite + antigorite under mantle wedge conditions: insights from the direct comparison of microstructures before and after experiments, Nagaya,T., Okamoto, A., Kido, M., Muto, J., & Wallis, S. R., Contributions to Mineralogy and Petrology, 177, https://doi.org/10.1007/s00410-022-01956-z, 2022
  8. Multi-stage infiltration of Na- and K-rich fluids from pegmatites at mid-crustal depths as revealed by feldspar replacement textures, Astin Nurdiana, Atsushi Okamoto, Kenta Yoshida, Masaoki Uno, Takayoshi Nagaya, Noriyoshi Tsuchiya, Lithos, 388-389, https://doi.org/10.1016/j.lithos.2021.106096, 2021
  9. Thermal structure in subducted units from continental Moho depths in a paleo subduction zone, the Asemigawa region of the Sanbagawa metamorphic belt, SW Japan, Yui Kouketsu, Kazushi Sadamoto, Hayato Umeda, Hirokazu Kawahara, Takayoshi Nagaya, Tomoki Taguchi, Hiroshi Mori, Simon Wallis, Masaki Enami, Journal of Metamorphic Geology, 39, pp. 727-749, https://doi.org/10.1111/jmg.12584, 2020
  10. Rapid fluid infiltration and permeability enhancement during middle-lower crustal fracturing: Evidence from amphibolite-granulite- facies fluid-rock reaction zones, Sør Rondane Mountains, East Antarctica, Diana Mindaleva, Masaoki Uno, Fumiko Higashino, Takayoshi Nagaya, Atsushi Okamoto, Noriyoshi Tsuchiya, Lithos, 372-373, https://doi.org/10.1016/j.lithos.2020.105521, 2020
  11. Crystallographic preferred orientation of talc determined by an improved EBSD procedure for sheet silicates: Implications for anisotropy at the slab–mantle interface due to Si-metasomatism, Takayoshi Nagaya, Atsushi Okamoto, Ryosuke Oyanagi, Yusuke Seto, Akira Miyake, Masaoki Uno, Jun Muto, Simon R. Wallis, American Mineralogist, 105, pp. 873-893, https://doi.org/10.2138/am-2020-7006, 2020
  12. Formation of secondary olivine after orthopyroxene during hydration of mantle wedge: evidence from the Khantaishir Ophiolite, western Mongolia, Otgonbayar Dandar, Atsushi Okamoto, Masaoki Uno, Ryosuke Oyanagi, Takayoshi Nagaya, Ulziiburen Burenjargal, Tsuyoshi Miyamoto, Noriyoshi Tsuchiya, Contributions to Mineralogy and Petrology, 174, https://doi.org/10.1007/s00410-019-1623-1, 2019
  13. Coexisting different types of zoned garnet in kyanite-quartz eclogites from the Sanbagawa metamorphic belt: Evidence of deformation-induced lithological mixing during prograde metamorphism, Masaki Enami, Jun-Ichi Kimura, Motohiro Tsuboi, Yui Kouketsu, Takayoshi Nagaya, Shuaimin Huang, Island Arc, 28, https://doi.org/10.1111/iar.12274, 2018
  14. Minimizing and quantifying mis-indexing in electron backscatter diffraction (EBSD) determinations of antigorite crystal directions, Takayoshi Nagaya, Simon R. Wallis, Yusuke Seto, Akira Miyake, Yusuke Soda, Seiichiro Uehara, Megumi Matsumoto, Journal of Structural Geology, 95, pp. 127-141, https://doi.org/10.1016/j.jsg.2016.12.006, 2017
  15. An integrated EPMA-EBSD study of metamorphic histories recorded in garnet, Masaki Enami, Takayoshi Nagaya, Maw Maw Win, American Mineralogist, 102, pp. 192-204, https://doi.org/10.2138/am-2017-5666, 2017
  16. Seismic evidence for flow in the hydrated mantle wedge of the Ryukyu subduction zone, Takayoshi Nagaya, Andrew M. Walker, James Wookey, Simon R. Wallis, Kazuhiko Ishii, J.-Michael Kendall, Scientific Reports, 6, https://doi.org/10.1038/srep29981, 2016
  17. Brucite as an important phase of the shallow mantle wedge: evidence from the Shiraga unit of the Sanbagawa subduction zone, SW Japan, Hirokazu Kawahara, Shunsuke Endo, Simon R. Wallis, Takayoshi Nagaya, Hiroshi Mori, Yoshihiro Asahara, Lithos, 254-255, pp. 53-66, https://doi.org/10.1016/j.lithos.2016.02.022, 2016
  18. Phase equilibria modelling of blueschist and eclogite from the Sanbagawa metamorphic belt of south-west Japan reveals along-strike consistency in tectonothermal architecture, Owen M. Weller, Simon R. Wallis, Mutsuki Aoya, Takayoshi Nagaya, Journal of Metamorphic Geology, 33, pp. 579-596, https://doi.org/10.1111/jmg.12134, 2015
  19. Reply to comment by Nozaka (2014) on "Dehydration breakdown of antigorite and the formation of B-type olivine CPO", Takayoshi Nagaya, Simon R. Wallis, Hiroaki Kobayashi, Katsuyoshi Michibayashi, Tomoyuki Mizukami, Yusuke Seto, Akira Miyake, Megumi Matsumoto, Earth and Planetary Science Letters, 408, pp. 406-407, https://doi.org/10.1016/j.epsl.2014.10.026, 2014
  20. Two types of antigorite serpentinite controlling heterogeneous slow-slip behaviours of slab–mantle interface, Tomoyuki Mizukami, Hironori Yokoyama, Yoshihiro Hiramatsu, Shoji Arai, Hirokazu Kawahara, Takayoshi Nagaya, Simon R. Wallis, Earth and Planetary Science Letters, 401, pp. 148-158, https://doi.org/10.1016/j.epsl.2014.06.009, 2014
  21. Dehydration breakdown of antigorite and the formation of B-type olivine CPO, Takayoshi Nagaya, Simon R. Wallis, Hiroaki Kobayashi, Katsuyoshi Michibayashi, Tomoyuki Mizukami, Yusuke Seto, Akira Miyake, Megumi Matsumoto, Earth and Planetary Science Letters, 387, pp. 67-76, https://doi.org/10.1016/j.epsl.2013.11.025, 2014

Presentations

  1. "Duplex Underplating, Sediment Dehydration and Quartz Vein Mineralization in the Deep Tremor Source Region" Kohtaro Ujiie, Naoki Nishiyama, Hisaki Yamamoto, Minoru Yamashita, Takayoshi Nagaya, Takashi Sano, Yui Kouketsu, Japan Geoscience Union (JpGU) Meeting 2024, Oral, SCG40-27, 2024.5
  2. "Shear heating along subduction zones and thermal structure in the domain of deep slow earthquakes: evidence from the exhumed subduction-type Sanbagawa metamorphic belt, SW Japan" Simon R. Wallis, Kazuhiko Ishii, Yukinojo Koyama, and Takayoshi Nagaya, EGU2024, Poster, EGU24-16478, 2024.4
  3. "Duplex Underplating, Sediment Dehydration and Quartz Vein Mineralization in the Deep Tremor Source Region" Kohtaro Ujiie, Naoki Nishiyama, Hisaki Yamamoto, Minoru Yamashita, Takayoshi Nagaya, Takashi Sano, Yui Kouketsu, American Geophysical Union2023, Oral, T31B-03, 2023.12
  4. "Deformation mechanisms and rheology of mélange shear zones associated with seamount subduction" Madison Frank, Kohtaro Ujiie, Ginta Motohashi, Takayoshi Nagaya, WaterRock Interaction（WRI17）, Poster, PC6-05, 2023.8
  5. "B-type antigorite crystal preferred orientation (CPO) by grain boundary sliding from Sanbagawa belt, Shikoku, Japan: implications for the distribution of antigorite CPO patterns in subduction zones" Takayoshi Nagaya, Simon R. Wallis, Ryosuke Ando, WaterRock Interaction（WRI17）, Oral, OC7-03, 2023.8
  6. "Deformation mechanisms and rheology of melange shear zones associated with seamount subduction" Frank Madison, Ujiie Kohtaro, Motohashi Ginta, Nagaya Takayoshi, Slow-to-Fast earthquake workshop in Taiwan, Oral, 2023.3
  7. "Antigorite grain boundary sliding accommodated by micro-cracking and dissolution-precipitation creep in subduction zone" Takayoshi Nagaya, Simon Richard Wallis, Japan Geoscience Union Meeting 2022, Poster, SCG44-P07, 2022.6
  8. "Deformation temperature and strain rate estimations for Mie mélange of Nagasaki Metamorphic Rocks" Seiya Maehara, Ryosuke Ando, Takayoshi Nagaya, Kohtaro Ujiie, Simon Richard Wallis, Koyama Yukinojo, Japan Geoscience Union Meeting 2022, Poster, SCG44-P10, 2022.6
  9. "Geological characteristics and stress distribution in deep slow earthquake domain: evidence from the subduction-type Sanbagawa metamorphic belt" Yukinojo Koyama, Simon Richard Wallis, Takayoshi Nagaya, Japan Geoscience Union Meeting 2022, Poster, SCG44-P09, 2022.6
  10. "Fingerprints of subducted noble gas and halogen in the Franciscan serpentinite, California" Jie Ren, Hirochika Sumino, Simon Richard Wallis, Takayoshi Nagaya, Japan Geoscience Union Meeting 2022, Oral, SGC35-02, 2022.5
  11. "Unraveling the primitive W isotope compositions of kimberlites" Otaro Kobayashi, Shiki Machida, Takayoshi Nagaya, Ichiro Kaneoka, Tsuyoshi Iizuka, Japan Geoscience Union Meeting 2022, Oral, SIT19-04, 2022.5
  12. "Underplating of metapelite and metabasite at source depths of ETS" Kohtaro Ujiie, Naoki Nishiyama, Minoru Yamashita, and Takayoshi Nagaya, Slow Earthquakes WS 2021, Oral, O-27, 2021.9
  13. "Generation of porosity network in plagioclase induced by multistage infiltration of reactive fluids into metamorphic rocks around quartz diorite intrusion at the middle crust" Astin Nurdiana, Atsushi Okamoto, Masaoki Uno, Kenta Yoshida, Takayoshi Nagaya, Noriyoshi Tsuchiya, AGU Fall Meeting 2020, Poster, V019-0008, 2020.12
  14. "Importance of Kikuchi band number in EBSD determinations of antigorite crystal directions" Takayoshi Nagaya, Simon R. Wallis, The 19th International Conference on Textures of Materials (ICOTOM 19), Oral, 2020.9
  15. "Mineralogy and structure of the shallow mantle wedge: evidence from seismic anisotropy in the Ryukyu Arc and structural petrological studies" Takayoshi Nagaya, Simon Richard Wallis, Andrew Walker, James Wookey, Kazuhiko Ishii, Michael Kendall, JpGU-AGU Joint Meeting 2020, Poster, SMP40-P03, 2020.7
  16. "Brucite as a major phase in the shallow mantle wedge" Takayoshi Nagaya, Simon Richard Wallis, Kazuhiro Kawahara, Shunsuke Endo, Hiroshi Mori, Yoshihiro Asahara, JpGU-AGU Joint Meeting 2020, Poster, SMP40-P01, 2020.7
  17. "Serpentinized shear zones with low frictional strength by grain-boundary sliding of antigorite at the depth of deep SSEs" Takayoshi Nagaya, Simon Richard Wallis, JpGU-AGU Joint Meeting 2020, Oral, SCG58-21, 2020.7
  18. "Crystal Preferred Orientation development of Secondary Olivine Formed by Hydration of Othopyroxene: Implication to Anisotropy of Shallow Mantle Wedge during Initiation Stage of Subduction" Otgonbayar DANDAR, Atsushi OKAMOTO, Takayoshi NAGAYA, Masaoki UNO, Noriyoshi TSUCHIYA, JpGU-AGU Joint Meeting 2020, Poster, SMP38-P05, 2020.7
  19. "The formation of micro- to nano-pores in feldspars induced by fluid infiltration within the crust" Astin Nurdiana, Atsushi Okamoto, Masaoki Uno, Kenta Yoshida, Takayoshi Nagaya, Noriyoshi Tsuchiya, JpGU-AGU Joint Meeting 2020, Oral, SMP38-20, 2020.7
  20. "Deformation of antigorite serpentinite in the base of the shallow wedge mantle and relationship to slow earthquakes" Kazuyuki Yoshida, Takayoshi Nagaya, Simon Richard Wallis, JpGU-AGU Joint Meeting 2020, Oral, SCG58-20, 2020.7
  21. "Thermal structure near the continental Moho of subduction zone: Natural example of the Asemigawa region of the Sanbagawa metamorphic belt, SW Japan" Yui Kouketsu, Kazushi, Sadamoto, Hayato Umeda, Hirokazu Kawahara, Takayoshi Nagaya, Tomoki Taguchi, Hiroshi Mori, Simon Wallis, Masaki Enami, JpGU-AGU Joint Meeting 2020, Oral, SMP40-06, 2020.7
  22. "Talc CPO and Seismic Anisotropy of Actinolite-Talc Schist from the Kamabuseyama Body in the Sanbagawa Belt of the Kanto Mountains, Japan" Takayoshi Nagaya, Simon R. Wallis, Asia Oceania Geosciences Society (AOGS) 2020 17th Annual meeting, Oral, 2020.6
  23. "Talc CPO and Seismic Anisotropy of Actinolite-Talc Schist from the Kamabuseyama Body in the Sanbagawa Belt of the Kanto Mountains, Japan" Takayoshi Nagaya, Simon R. Wallis, 17th International Workshop on WATER DYNAMICS, Oral, 2020.3
  24. "Grain boundary sliding as an antigorite CPO formation mechanism and implications for the slab-mantle boundary rheology: Example of antigorite schist from the Sanbagawa belt, SW Japan" Takayoshi Nagaya, Simon Wallis, American Geophysical Union (AGU) Fall Meeting, Poster, T31G-0393 , 2018.12
  25. "Grain boundary sliding and antigorite CPO formation in antigorite schist from the Sanbagawa belt, SW Japan: implications for the slab–mantle boundary rheology" Simon Richard Wallis, Takayoshi Nagaya, Japan Geoscience Union Meeting 2018, Poster, S-CG53-P19 , 2018.5
  26. "Analysis of EBSD mapping data of antigorite schist from the Sanbagawa belt, SW Japan and implication of a grain boundary sliding as an antigorite CPO formation mechanism" Takayoshi Nagaya, Simon Wallis, European Geosciences Union (EGU) General Assembly 2018, Poster, EGU2018-11047, 2018.4
  27. "Time scales of Cl-bearing fluid infiltration and permeability estimated by reactive transport modeling for ranulite/amphibolite-hosted reaction zones, southern Sør Rondane Mountains, East Antarctica" Diana Mindaleva, Masaoki Uno, Fumiko Higashino, Takayoshi Nagaya, Ryosuke Oyanagi, Atsushi Okamoto, Noriyoshi Tsuchiya, 15th International Workshop on WATER DYNAMICS Deeper and Hotter in Frontier Earth, Poster, P-16, 2018.3
  28. "Mis-indexing of antigorite crystallographic orientations in EBSD measurements" Takayoshi Nagaya, Simon Wallis, Yusuke Seto, Akira Miyake, Yusuke Soda, Seiichiro Uehara, Megumi Matsumoto, JpGU-AGU Joint Meeting 2017, Poster, SGL33-P07, 2017.5
  29. "Evidence for localized high fluid pressure along the paleo subduction boundary exposed in the Sanbagawa belt, SW Japan" Simon Wallis, Shunsuke Endo, Takayoshi Nagaya, Hiroshi Mori, Yoshihiro Asahara, Hirokazu Kawahara, JpGU-AGU Joint Meeting 2017, Oral, SGL33-09 , 2017.5
  30. "Petrological and structural analyses of ultrafine-grained ductile shear zone in hydrous peridotite: A case study of the Gongen outcrop in the Sanbagawa belt" Miho Komai, Tomoyuki Mizukami, Tsubasa Arai, Takayoshi Nagaya, Simon Wallis, JpGU-AGU Joint Meeting 2017, Poster, SGL33-P04, 2017.5
  31. "Rheological transition during progressive antigorite serpentinization of peridotite" Tsubasa Arai, Tomoyuki Mizukami, Takayoshi Nagaya, Simon Wallis, JpGU-AGU Joint Meeting 2017, Poster, SGL33-P05, 2017.5
  32. "Shear wave splitting and the dynamics of the hydrated mantle wedge in subduction regions constrained by the example of the Ryukyu subduction zone" Takayoshi Nagaya, Andrew Walker, James M. Wookey, Simon Wallis, Kazuhiko Ishii, J.-Michael Kendall, American Geophysical Union (AGU) Fall Meeting, Poster, 2016.12
  33. "Mineralogy of the mantle wedge at depths of deep slow slip: implications for fluid flow along the subduction boundary" Simon Wallis, Shunsuke Endo, Takayoshi Nagaya, Hirokazu Kawahara, Hiroshi Mori, Yoshihiro Asahara, American Geophysical Union (AGU) Fall Meeting, Oral, 2016.12
  34. "Brucite as an important phase in the mantle wedge: evidence from the Sanbagawa belt, SW Japan" Simon Wallis, Shunsuke Endo, Hirokazu Kawahara, Takayoshi Nagaya, Hiroshi Mori, Yoshihiro Asahara, Japan Geoscience Union (JpGU) Meeting 2016, Oral, SMP15-06, 2016.5
  35. "S-wave ray path analysis constrains the distribution and dynamics of the hydrated mantle wedge" Nagaya, T., Walker, A.M., Wookey, J.M., Kendall, M.J. & Wallis, S.R, The 2nd Japan-Taiwan Workshop on Crustal Dynamics (JTWCD), Poster, 2015.4
  36. "Seismology in Ryukyu arc, Japan reveals the distribution and orientation of serpentine minerals suggesting convection and low viscosity of forearc mantle" Takayoshi Nagaya, Andrew M. Walker, James M. Wookey, Michael J. Kendall & Simon R. Wallis, American Geophysical Union (AGU) Fall Meeting, Poster, T51B-4623, 2014.12
  37. "Possible petrological controls on the location and time scale of slow slip in SW Japan" Simon Wallis, Tomoyuki Mizukami, Hironori Yokoyama, Yoshihiro Hiramatsu, Shoji Arai, Hirokazu Kawahara, Takayoshi Nagaya, American Geophysical Union (AGU) Fall Meeting, Oral, S52B-08, 2014.12
  38. "Olivine CPO in non-deformed peridotite due to topotactic replacement of antigorite" Takayoshi Nagaya, Simon R. Wallis, Hiroaki Kobayashi, Katsuyoshi Michibayashi, Tomoyuki Mizukami, Yusuke Seto, Akira Miyake, Megumi Matsumoto, European Geosciences Union (EGU) General Assembly 2014, Poster, EGU2014-5175, 2014.4
  39. "Olivine CPO in non-deformed peridotite due to topotactic replacement of antigorite" Takayoshi Nagaya, Simon R. Wallis, Hiroaki Kobayashi, Katsuyoshi Michibayashi, Tomoyuki Mizukami, Yusuke Seto, Akira Miyake, Megumi Matsumoto, Japan Geoscience Union (JpGU) Meeting 2014, Poster, SIT04-P05, 2014.4
  40. "Slab-wedge mantle boundary preserved in the Sanbagawa belt, SW Japan" Wallis Simon, Hiroshi Mori, Takayoshi Nagaya, Hirokazu Kawahara, Japan Geoscience Union (JpGU) Meeting 2014, Oral, SIT04-04, 2014.4
  41. "Oriented growth due to topotactic replacement of antigorite by olivine as a mechanism for the formation of B-type olivine CPO in convergent margins" Takayoshi Nagaya, Simon Wallis, Hiroaki Kobayashi, Katsuyoshi Michibayashi, Tomoyuki Mizukami, American Geophysical Union (AGU) Fall Meeting, Poster, 2012.12
  42. "Topotaxial growth of olivine and the formation of b-type CPO" Simon Wallis, Takayoshi Nagaya, Hiroaki Kobayashi, Katsuyoshi Michibayashi, Tomoyuki Mizukami, 34th International Geological Congress (IGC), Oral, 2012.8