Japan Geoscience Union Meeting 2016

Presentation information


Symbol M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS17] Paleoclimatology and paleoceanography

Mon. May 23, 2016 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall HALL6)

Convener:*Tomohisa Irino(Faculty of Environmental Earth Science, Hokkaido University), Minoru Ikehara(Center for Advanced Marine Core Research, Kochi University), Akira Oka(Atmosphere and Ocean Research Institute, The University of Tokyo), Yusuke Okazaki(Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University), Ikuko Kitaba(Research Centre for Palaleoclimatology, Ritsumeikan University), Akihisa Kitamura(Institute of Geosciences, Faculty of Science, Shizuoka University), Masaki Sano(Research Institute for Humanity and Nature), Ryuji Tada(Department of Earth and Planetary Science, Graduate School of Science, The Univeristy of Tokyo), Takeshi Nakagawa(Ritsumeikan University), Akira Hayashida(Department of Environmental Systems Science, Doshisha University)

5:15 PM - 6:30 PM

[MIS17-P13] Oxygen and hydrogen isotope analyses of fluid inclusions in Holocene stalagmite from Niigata prefecture

*Kanako Omine1, Ryu Uemura1, Satoru Mishima1, Akihiro Kano2, Tomomi Sone3, Kenji Kashiwagi4 (1.Department of Chemistry, Biology and Marine Science, University of the Ryukyus, 2.Graduate School of Social and Cultural Studies, Kyushu University, 3.Marine Works Japan, 4.University of Toyama)

Keywords:Speleothem, stalagmite, fluid inclusion, stable isotope

The climate in East Asia is influenced by the East Asian Winter Monsoon (EAWM). Recently, the EAWM variations during Holocene have been revealed by the oxygen isotope (δ18O) record of stalagmite calcite from Fukugaghuchi cave (Sone et al., 2013). In this study, we show oxygen and hydrogen stable isotopes of fluid-inclusion water in the stalagmite. The stalagmite (FG01) in Fukugaguchi cave in Niigata, Japan (Sone et al., 2013) was used for fluid inclusions analyses. The analytical method was based on Uemura et al. (2016), but most of operations were automated. Although water content of FG01 was very low (average 0.006 wt.%), fluid-inclusion isotope data covering 4000-8000 yrs BP were measured successfully.