Japan Geoscience Union Meeting 2014

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Poster

Symbol S (Solid Earth Sciences) » S-IT Science of the Earth's Interior & Techtonophysics

[S-IT41_28PO1] Origin, Evolution, Destruction, and Recycling of Oceanic Plate

Mon. Apr 28, 2014 6:15 PM - 7:30 PM Poster (3F)

Convener:*Morishita Tomoaki(School of Natural System, Colleage of Science and Technology, Kanazawa University), Toshitsugu Yamazaki(Atmosphere and Ocean Research Institute, The University of Tokyo), Nobukazu Seama Nobukazu(Department of Earth and Planetary Sciences, Graduate School of Science, Kobe University), Ryo Anma(Faculty of Life and Environmental Science, University of Tsukuba), Hidenori Kumagai(Independent Administrative Institution, Japan Agency for Marine-Earth Science and Technology), Daisuke Nakamura(Okayama University)

Formation and subduction of oceanic plate play an important role in the thermochemical evolution of the Earth interior and surface environmental conditions including biological activities. However, we have never clearly answered basic questions: such as (1) Origin and modification (metamorphism and alteration coupled with biological activities) of oceanic plate before and after subduction, (2) Impact of destruction of oceanic plate on subduction zone processes, such as volcanism and earthquake, (3) Differences between mid-ocean ridge and back arc settings. In order to understand the origin, evolution and deconstruction of oceanic plate, the session invites contributions from a range of geophysics, geochemistry, petrology, modeling, simulation and biology working on intact as well as fossil oceanic lithosphere, e.g., ophiolite.

6:15 PM - 7:30 PM

[SIT41-P01] Mafic and ultramafic rocks along the southern Central Indian Ridge close to the Kairei Hydrothermal Field

Takuma NISHIMURA1, Yumiko HARIGANE2, *Katsuyoshi MICHIBAYASHI3, Tomoaki MORISHITA4, Hiroshi SATO5 (1.Institute of Geosciences, Shizuoka University, 2.AIST/GSJ, 3.Institute of Geosciences, Shizuoka University, 4.School of Natural System, Colleage of Science and Technology, Kanazawa University, 5.School of Business Administration, Senshu University)

6:15 PM - 7:30 PM

[SIT41-P04] Petrological features of the peridotite xenoliths in the 1991 Pinatubo dacite and mantle metasomatism by subducted ocean

*Masako YOSHIKAWA1, Akihiro TAMURA2, Shoji ARAI2, Tetsuo KOBAYASHI3, Tatsuhiko KAWAMOTO1, Mitsuru OKUNO4, Betchaida PAYOT2, Danikko RIVERA5, Ericson BARISO5, Hannah T. MIRABUENO MA.6 (1.Institute for Geothermal Sciences, Kyoto Univ., 2.Department of Earth Sciences, Kanazawa Univ., 3.Department of Earth and Environmental Sciences, Kagoshima Univ., 4.Department of Earth System Science, Fukuoka Univ., 5.PHIVOLCS, 6.Institute of Volcanology and Seismology, University of the Philippines)