[S-GL27] Geochronology and Isotope Geology

Thu. May 30, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, 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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[SGL27-P01] Research report on long-term stability of geological environments and LA-ICP-MS-based age dating

★Invited Papers

*Tatsunori Yokoyama¹, Takehiro Mitsucuchi¹, Shigeru Sueoka¹ (1.Japan Atomic Energy Agency)

[SGL27-P02] U-Pb detrital zircon age dating from the Aileu Formation of Timor-Leste; Estimate depositional age and provenance of the sediment

*Jovita Elisa Fatima da Costa¹, Shoichi Kiyokawa¹, Yukiyasu Tsutsumi² (1.Kyushu University, 2.National Museum of Nature and Science)

[SGL27-P03] Petrological, geochemical, and geochronological characteristics of the Oritate travertine from Unazuki area, Toyama, Japan: possibility of U-Pb geochronology of carbonates with high common Pb.

*Mayuko Fukuyama¹, Masatsugu Ogasawara² (1.Graduate School of Engineering Science, Akita University, 2.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology)

[SGL27-P04] Zircon U-Pb age and tectonics of shirakamidake granitic complex

*Hiroki Sato¹, Koji Umeda¹ (1.Hirosaki University)

[SGL27-P05] Zircon U-Pb dating of plutonic rocks from Yamizo Area, northeast Japan

*Terumi Ejima^1,2, Yoshiaki Kon², Daisuke Araoka², Shigenori Kawano³, Yutaka Takahashi² (1.Shinshu University, 2.Geological Survey of Japan, 3.Tochigi Prefectural Museum)

[SGL27-P06] Denudation history of the Higher Himalayan Crystallines in West-Central Nepal: insights from zircon fission-track dating and thermokinematic modeling

*Nakajima Toru¹, Harutaka Sakai¹, Hideki Iwano², Tohru Danhara², Takafumi Hirata³ (1.Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto University, 2.Kyoto Fission-Track Co., Ltd., 3. Geochemical Research Center, The University of Tokyo)

[SGL27-P07] Thermochronology on the fore-arc side of Northeast Japan Arc

*Yuya Kajita¹, Shigeru Sueoka², Shoma Fukuda¹, Noriko Hasebe³, Akihiro Tomoaki⁴, Tomoaki Morishita⁴, Barry P. Kohn⁵, Tatsunori Yokoyama², Takahiro Tagami¹ (1.Graduate School of Science, Kyoto University , 2.Japan Atomic Energy Agency, 3.Institute of Nature and Environmental Technology, Kanazawa University, 4.Department of Sciences, Kanazawa University, 5.School of Earth Sciences, University of Melbourne)

[SGL27-P08] Argon diffusion in rocks - classical approach in view of heating and relaxation

Horst Zwingmann¹, *Hironobu Hyodo² (1.KUEPS, Kyoto University, 2.Research Institute of Natural Sciences, Okayama University of Science)

[SGL27-P09] ⁴He/U-Th dating of pore waters from Quaternary sediments in Switzerland: potential and challenges

*Yama Tomonaga¹, Edith Horstmann¹, Gaudenz Deplazes², Rolf Kipfer¹ (1.Swiss Federal Institute of Aquatic Science and Technology (Eawag), 2.National Cooperative for the Disposal of Radioactive Waste (Nagra))

[SGL27-P10] Compound-specific radiocarbon analysis of lipid biomarkers in surface sediment from Lake Kawaguchi, central Japan

*Shinya Yamamoto¹, Yosuke Miyairi², Yusuke Yokoyama², Hisami Suga³, Nanako O. Ogawa³, Naohiko Ohkouchi³ (1.Mount Fuji Research Institute, Yamanashi Prefectural Government, 2.Atmosphere and Ocean Research Institute, The University of Tokyo, 3.Japan Agency for Marine-Earth Science and Technology)

Session information