[S-GL34] Geochronology and Isotope Geology

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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[SGL34-06] Nd isotopic study on marine environment: past, present and future

★Invited Papers

*Hiroshi Amakawa¹ (1.Atmosphere and Ocean Research Institute The University of Tokyo)

[SGL34-07] In-situ apatite Lu–Hf dating by LA-ICP-MS with a collision/reaction cell

*Sota Niki¹, Hideki Iwano², Tsuyoshi Iizuka³, Takafumi Hirata¹ (1.Geochemical Research Center, School of Science, The University of Tokyo, 2.KYOTO FISSION-TRACK Co.Ltd, 3.Department of Earth and Planetary Science, The University of Tokyo)

[SGL34-08] The origin of the Hida belt: Lu–Hf and U–Pb systematics of the zircon

*Mitsuhiro Nagata¹, Tatsunori Yokoyama², Saya Kagami², Shigeru Otoh³ (1.Graduate School of Science and Engineering , University of Toyama, 2.Japan Atomic Energy Agency, 3.Academic Assembly, Faculty of Sutainable Design, University of Toyama)

[SGL34-09] Episodic growth of the Archean crust in the southern Zimbabwe Craton: Evidence from petrology, zircon U-Pb geochronology and Lu-Hf isotopes

*Muhammad Sazzadur Rahman¹, Toshiaki Tsunogae^1,2, Qian Liu ^1,3, M. Santosh^4,5, Sam Uthup¹, Prince Mandingaisa⁶, Maideyi Lydia Meck⁶ (1.Graduate School of Life and Environmental Sciences, University of Tsukuba, 2.Department of Geology, University of Johannesburg, Auckland Park 2006, South Africa, 3.International Research Fellow of Japan Society for the Promotion of Science (Postdoctoral Fellowships for Research in Japan (Standard)), 4.School of Earth Sciences and Resources, China University of Geosciences Beijing, 29 Xueyuan Road, Beijing 100083, China, 5.Centre for Tectonics Resources and Exploration, Department of Earth Sciences, University of Adelaide, SA 5005, Australia, 6.Department of Geology, University of Zimbabwe, Mount Pleasant, Zimbabwe)

[SGL34-10] Dating of sedimentary rock in Labrador, Canada

katsutaka sudo¹, Takanori Kagoshima¹, Naoto Takahata¹, *Yuji Sano¹, Yusuke Sawaki², Tsuyoshi Komiya², David Bekaert³, Michael Broadley³, Bernard Marty³ (1.Atmosphere and Ocean Research Institute, University of Tokyo, 2.Graduate School of Arts and Science, University of Tokyo, 3.Le Centre de Recherches Pétrographiques et Géochimiques, Université de Lorraine)