[S-GL30] Geochronology and Isotope Geology

Wed. May 23, 2018 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

convener:Takahiro Tagami(Graduate School of Science, Kyoto University), Yuji Sano(Division of Ocean and Earth Systems, Atmosphere and Ocean Research Institute, University of Tokyo)

Reliable reconstruction of geohistory is of primary importance to better envision the present and future of the Earth. Geochronology and isotope geology play major roles in the reconstruction. This session offers an opportunity to present the results of fundamental studies, including the developments / improvements of analytical methods and age calibration, as well as applications to the Earth and planetary materials. We particularly focus on: (1) radiometric dating, bio-stratigraphy, magneto-stratigraphy and stable isotopic time series that provide the age information, (2) radioisotopes and stable isotopes widely employed for analyzing the Earth and planetary systems and (3) hypothesis and numerical modeling that utilize / assimilate the age and isotopic data. We also welcome contributions that integrate a variety of relevant disciplines.

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[SGL30-P01] Spatiotemporal evolution of magmatic pulses and regional metamorphism during a Cretaceous flare-up event: constraints from the Ryoke belt (Mikawa area, central Japan)

★Invited Papers

*Tetsuo Kawakami¹, Kota Takatsuka¹, Etienne Skrzypek¹, Shuhei Sakata^1,2, Hideyuki Obayashi¹, Takafumi Hirata^1,3 (1.Graduate School of Science, Kyoto University, 2.Gakushuin University, 3.The Univeristy of Tokyo)

[SGL30-P02] Zircon U-Pb dating and Fission track age of a Pliocene Ohta Tephra in the Tokai Group

*Tadamasa Ueki¹, Masakazu Niwa¹, Yusuke Yonaga¹, Hideki Iwano², Tohru Danhara² (1.Japan Atomic Energy Agency, 2.Kyoto Fission-Track Ci., Ltd)

[SGL30-P03] Trace element composition and U-Pb age of travertine from Balochistan, Pakistan: possible reference material for U-Pb geochronology of calcite.

*Mayuko Fukuyama¹, Masatsugu Ogasawara², Rhanul Huq Siddiqui³ (1.Graduate School of Engineering Science, Akita University, 2.Geological Survey ofJapan, AIST, 3.Balochistan University of Information Technology, Engineering and Management Sciences)

[SGL30-P04] Cooling profile of the southern slope of Mount Everest since 15 Ma based on zircon and apatite fission-track and muscovite Ar/Ar analyses of the Higher Himalayan Crystallines

*Hideki Iwano¹, Tohru Danhara¹, Yutaka Takigami², Harutaka Sakai³ (1.Kyoto Fission-Track Co., Ltd., 2. Kanto Gakuen University, 3.Kyoto University)

[SGL30-P05] Thermal history of the Higher Himalayan Crystallines and over-underlying sediments in west-central Nepal, revealed by zircon fission-track dating

*Nakajima Toru¹, Harutaka Sakai¹, Hideki Iwano², Tohru Danhara² (1.Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto University, 2.Kyoto Fission-Track Co., Ltd.)

[SGL30-P06] An increment of optically-stimulated luminescence (OSL) signal of quartz due to low- to intermediate-velocity frictional sliding

*Kiyokazu Oohashi¹, Koji Akasegawa², Noriko Hasebe³, Kazumasa Miura⁴ (1.Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2.Daiwa Exploration & Consulting Co., Ltd., 3.Institute of Nature and Environmental Technology, Kanazawa University, 4.Graduate School of Natural Science & Technology, Kanazawa University)

[SGL30-P07] Geological and seismological conditions required for operating coseismic OSL zeroing of quartz gouge

*Minomo Yuki¹, Akasegawa Koji², Kiyokazu Oohashi³, Noriko Hasebe⁴, Kazumasa Miura⁵ (1.Yamaguchi University , 2.DAIWACONSUL CO. LTD, 3.Graduate school of Sciences and Technology for Innovation, Yamaguchi University, 4.Institute of Nature and Environmental Technology, Kanazawa University, 5.Kanazawa University)

[SGL30-P08] Thermal history along the Mozumi-Sukenobu fault (Atotsugawa fault zone), central Japan, based on zircon fission-track thermochronometry

*Shigeru Sueoka¹, Zuitetsu Ikuho², Noriko Hasebe³, Takahiro Tagami⁴ (1.Japan Atomic Energy Agency, 2.Ryukoku University Heian Senior High School, 3.Kanazawa University, 4.Kyoto University)

[SGL30-P09] Unclosure temperature and geometry

*Hironobu Hyodo¹ (1.Research Institute of Natural Sciences, Okayama University of Science)

[SGL30-P10] Fission-track dating method in monazite:
Development of lower-temperature thermochronometer

*Ai SHISHIKURA¹ (1.Kyoto University)

Session information