[S-GL33] [EE] Geodynamics of convergent margins: theoretical, laboratory and natural examples

Tue. May 23, 2017 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall HALL7)

convener:Simon Wallis(Department of Earth and Planetary Sciences, Nagoya University), Hiroshi Mori(Shinshu University), Takayoshi Nagaya(Graduate School of Environmental Studies, Tohoku University), Tomoyuki Mizukami(Earth Science Course, School of Natural System, College of Science and Engineering, Kanazawa University)

We welcome studies that focus on the deformation, fluid flow, and dynamics of convergent

margins using theoretical, laboratory or field-based studies. The focus is on processes that occur in the crust and lithospheric mantle both in subduction zones and collisional belts. We welcome presentations using a wide variety of approaches and hope that this session will stimulate discussion between experts from different backgrounds and help develop a better understanding of these important lithospheric domains.

[SGL33-P01] Field-based constraint on dehydration behavior of altered oceanic basalt at the seismogenic subduction boundary

*Shunsuke Endo¹, Simon Wallis² (1.Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University, 2.Graduate School of Environmental Studies, Nagoya University)

[SGL33-P02] Metamorphic Olivine Formed after Orthopyroxene in Mantle Wedge during Serpentinization from the Khantaishir Ophiolite, Western Mongolia

*OTGONBAYAR DANDAR¹, Atsushi Okamoto¹, Masaoki Uno¹, Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental Studies, Tohoku University)

[SGL33-P03] Evolution of redox state inferred from trivalent cations in antigorite from Higashi-akaishi peridotite body, SW Japan

*Yusuke Soda¹, Tomoaki Morishita¹, Hironori Yokoyama¹, Tomoyuki Mizukami¹ (1.School of Natural system, College of Science and Engineering, Kanazawa University)

[SGL33-P04] 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 Komai¹, Tomoyuki Mizukami¹, Tsubasa Arai¹, Takayoshi Nagaya², Simon Wallis³ (1.Kanazawa Univ., 2.Tohoku Univ., 3.Nagoya Univ.)

[SGL33-P05] Rheological transition during progressive antigorite serpentinization of peridotite

Tsubasa Arai¹, *Tomoyuki Mizukami¹, Takayoshi Nagaya², Simon Wallis³ (1.Kanazawa Univ., 2.Tohoku Univ., 3.Nagoya Univ.)

[SGL33-P06] Numerical model of reaction-advection system for serpentinization in permeable flow of silica-rich fluid: Examination of chemical behaviour

Jinya Kobayashi¹, *Tomoyuki Mizukami¹, Noritaka Endo¹ (1.Kanazawa Univ.)

[SGL33-P07] Mis-indexing of antigorite crystallographic orientations in EBSD measurements

*Takayoshi Nagaya^1,2, Simon Wallis², Yusuke Seto³, Akira Miyake⁴, Yusuke Soda^2,5, Seiichiro Uehara⁶, Megumi Matsumoto⁷ (1.Graduate School of Environmental Studies, Tohoku University, 2.Graduate School of Environmental Studies, Nagoya University, 3.Department of Planetology, Graduate School of Science, Kobe University, 4.Department of Earth and Planetary Science, Faculty of Science, Kyoto University, 5.School of Natural System, College of Science and Engineering, Kanazawa University, 6.Department of Earth and Planetary Science, Faculty of Sciences, Kyushu University, 7.Center for Supports to Research and Education Activities, Kobe University)

[SGL33-P08] Effect of water on the rheology of cold mantle rocks: An experimental study

*Takayuki Nakatani¹, Jun Muto², Masanori Kido² (1.Division of Earth and Planetary Materials Science, Department of Earth Science, Graduate School of Science, Tohoku university, 2. Division of GeoEnvironmental Science, Department of Earth Science, Graduate School of Science, Tohoku university)

[SGL33-P09] Frictional properties of Akiyoshi greenstone: implications for the seamount subduction and earthquake generation

*Michiyo Sawai¹, Yasutaka Hayasaka², Toshihiko Shimamoto³, Shengli Ma³, Lu Yao³ (1.Chiba University, 2.Hiroshima University, 3.Institute of Geology, CEA, China)

[SGL33-P10] Detection of shear heating on an out-of-sequence thrust using Raman CM geothermometry and constraints on the fault strength and total displacement by thermal modeling

*Hiroshi Mori¹, Hidetoshi Hara², Yoshihiro Nakamura³ (1.Faculty of Science, Shinshu University, 2.Institute of Geology and Geoinformation (Geological Survey of Japan), National Institute of Advanced Industrial Science and Technology, 3.Graduate School of Science and Technology, Niigata University)

[SGL33-P11] Strike-slip reactivation of regional scale thrust faults with moderate dips

*Anne Van Horne^1,2, Judith Hubbard³, Hiroshi Sato¹, Tetsuya Takeda⁴, Takaya Iwasaki¹ (1.Earthquake Research Institute, The University of Tokyo, Tokyo, Japan, 2.Department of Geology and Geophysics, University of Wyoming, Laramie, Wyoming USA , 3.Earth Observatory of Singapore, Nanyang Technological University, Singapore, 4.National Research Institute for Earth Science and Disaster Prevention (NIED), Tsukuba, Ibaraki, Japan)

Session information