[S-GC51] Frontiers in noble gas isotope geosciences

4:15 PM - 4:30 PM

★ [SGC51-04] Quantifying seawater assimilation across a single MORB pillow

*Michael BROADLEY¹, Ray BURGESS², Hidenori KUMAGAI³, Chris BALLENTINE⁴ (1.Geochemical Research Center, Graduate School of Science, The University of Tokyo, 2.SEAES, University of Manchester, M13 9PL, UK, 3.JAMSTEC, Kanagawa 237-0061, Japan, 4.Department of Earth Sciences, University of Oxford, OX1 3AN, UK)

4:30 PM - 4:45 PM

[SGC51-05] Halogen analysis of mantle xenoliths by extending Ar-Ar and I-Xe dating methods

*Masahiro KOBAYASHI¹, Hirochika SUMINO¹, Keisuke NAGAO¹, Ray Burgess², Satoko ISHIMARU³, Shoji ARAI⁴, Masako YOSHIKAWA⁵, Tatsuhiko KAWAMOTO⁵, Yoshitaka KUMAGAI⁵, Tetsuo KOBAYASHI⁶, Michihiko NAKAMURA⁷, Eiichi TAKAHASHI⁸ (1.GCRC, Univ. Tokyo, 2.SEAES, Univ. of Manchester, UK, 3.Dept. Earth Environ. Sci., Kumamoto Univ., 4.Dept. Earth Sci., Kanazawa Univ., 5.Inst. Geothermal Sci., Kyoto Univ., 6.Dept. Earth Environ. Sci., Kagoshima Univ., 7.Dept. Earth Sci., Tohoku Univ., 8.Dept. Earth Sci., Tokyo Tech)

4:45 PM - 5:00 PM

[SGC51-06] Across-arc variation in noble gas and halogen compositions of volcanic rocks from the Izu-Ogasawara subduction zone

*Hirochika SUMINO¹, Ray BURGESS², Lisa JEPSON², Deborah CAVRIT², Aya SHIMIZU³, Shiki MACHIDA⁴, Chris BALLENTINE⁵ (1.GCRC, Grad. Sch. Sci., Univ. Tokyo, 2.SEAES, Univ. Manchester, 3.Tokyo Metropolitan Industrial Technology Research Institute, 4.Sch. Creative Science and Engineering, Waseda Univ., 5.Dept. Earth Sciences, Univ. Oxford)