[S-VC43] Volcanic and igneous activities, and these long-term forecasting

Sun. May 20, 2018 10:45 AM - 12:15 PM A05 (Tokyo Bay Makuhari Hall)

convener:Teruki Oikawa(GSJ, National Institute of Advanced Industrial Science and Technology), Takeshi Hasegawa(Department of Earth Sciences, College of Science, Ibaraki University), Daisuke MIURA(一般財団法人電力中央研究所地球工学研究所地圏科学領域, 共同), Nobuo Geshi(Geological Survey of Japan, The National Institute of Advanced Industrial Science and Technology), Chairperson:Hasegawa Takeshi(Department of Earth Sciences, College of Science, Ibaraki University), Maeno Fukashi

This session focuses on generation and accumulation processes of magmas, magma-crust interaction and degassing, and modes of eruption, long-term forecast of eruption, dispersal and emplacement of the volcanic products. The discussion spans petrological, geochemical, geophysical, and geological processes related with volcanic activity and products in the past, the present and the future.

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10:45 AM - 11:00 AM

[SVC43-05] Possibility of a huge caldera eruption of the Aso caldera inferred from its vertical deformations in the last hundred years

*Hitoshi Yamashita Mori¹ (1.WEST JAPAN ENGINEERING CONSULTANTS, INC.)

11:00 AM - 11:15 AM

[SVC43-06] Geology and petrography of the pre-Aso volcanic rocks distributed in Tateno area, Minami-Aso village, Kyushu.

*Shota Togawa¹, Toshiaki Hasenaka², Masayuki Torii², Yasushi Mori³ (1.Graduate School of Science and Technology, Kumamoto University, 2.Center for Water Cycle, Marine Environment and Disaster management, Kumamoto University, 3.Kitakyushu Museum of Natural History and Human History)

11:15 AM - 11:30 AM

[SVC43-07] Contributions of crust-derived mafic/intermediate and felsic magmas to the Aira catastrophic caldera-forming eruption inferred from geochemical characteristics of essential clasts

*Ayumu Nishihara¹, Yoshiyuki Tatsumi^2,1, Keiko Suzuki-Kamata^2,1, Katsuya Kaneko¹, Jun-Ichi Kimura³, Qing Chang³, Hironobu Hinata⁴ (1.Department of Planetology, Graduate School of Science , Kobe University, 2.Kobe Ocean-Bottom Exploration Center, 3.Department of Solid Earth Geochemistry, Japan Agency for Marine-Earth Science and Technology, 4.Kobe Municipal Tarumi Junior High School)

11:30 AM - 11:45 AM

[SVC43-08] A time gap in the caldera-forming eruptions of Kikai volcano: Estimation based on paleomagnetic directions and secular variation

*Takeshi Hasegawa¹, Nobutatsu Mochizuki², hisashi Oiwane³ (1.Department of Earth Sciences, College of Science, Ibaraki University, 2.Priority Organization for Innovation and Excellence, Kumamoto University, 3.Musuhi LLC)

11:45 AM - 12:00 PM

[SVC43-09] Gigantic eruption history of the Kikai Caldera inferred from zircon U-Pb dating and elemental analysis

*Hisatoshi Ito¹, Simpei Uesawa¹ (1.Central Research Institute of Electric Power Industry)

12:00 PM - 12:15 PM

[SVC43-10] Time-scale leading to the climactic pyroclastic flow phase in the 7.3 ka caldera-forming eruption at Kikai caldera, Japan

*Fukashi Maeno¹ (1.Earthquake Research Institute, University of Tokyo)

Session information