Japan Geoscience Union Meeting 2015

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Symbol S (Solid Earth Sciences) » S-GL Geology

[S-GL38] Lower-Middle Pleistocene Boundary GSSP in the Kazusa Group

Mon. May 25, 2015 11:00 AM - 12:45 PM 102B (1F)

Convener:*Makoto Okada(Department of Earth Sciences, Faculty of Science, Ibaraki University), Yusuke Suganuma(National institute of Polar Research), Osamu Kazaoka(Research Institute of Environmental Geology, Chiba), Chair:Yusuke Suganuma(National institute of Polar Research), Osamu Kazaoka(Research Institute of Environmental Geology, Chiba)

The Lower-Middle Pleistocene Boundary GSSP, which is placed to be around the Matuyama-Brunhes boundary, is going to be ratified in 2016. Three candidates (Montalbano Jonic, Valde di Manche and the Chiba Section) have been proposed so far. The aim of this session is to facilitate GSSP ratification at the Chiba Section through discussion for stratigraphic, chronologic and sedimentological studies regarding with the Mid Kazusa Group.

11:30 AM - 11:45 AM

[SGL38-06] Matuyama-Brunhes magnetic polarity transition from a sequence of the Kokumoto Formation drilled at Tabuchi, Ichihara

*Masayuki HYODO1, Kenta TAKASAKI2, Hayato MATSUSHITA2, Shigehiro KATOH3, Ikuko KITABA4, L., David DETTMAN5, Akihisa KITAMURA6, Hiroki HAYASHI7, Makoto OKADA8 (1.Research Center for Inland Seas, Kobe University, 2.Department of Planetology, Kobe University, 3.Hyogo Museum of Nature and Human Activities, 4.Research Center for Palaeoclimatology, Ritsumeikan University, 5.Department of Geosciences, University of Arizona, 6.Institute of Geosciences, Shizuoka University, 7.Interdisciplinary Faculty of Science and Engineering, Shimane University, 8.Department of Earth Sciences, Faculty of Science, Ibaraki University)

12:30 PM - 12:33 PM

[SGL38-P01] Invitation to the Tabuchi section, central Japan: A candidate GSSP for the Lower-Middle Pleistocene Subseries/Subepoch

3-min talk in an oral session

*Takeshi YOSHIDA1, Itaru OGITSU1, Osamu KAZAOKA1, Makoto OKADA2, Yusuke SUGANUMA3, Koji KAMEO4, Hisashi NIREI5, Nobuyuki AIDA6, Hisao KUMAI7, Naohisa NISHIDA8, Kentaro IZUMI9 (1.Reserch Institute of Environmental Geology, Chiba, 2.Ibaraki University, 3.National Institute of Polar Research, 4.Chiba University, 5.Japan Branch of Geoscience for Environmental Management, 6.Shumei University, 7.Osaka City University, 8.GSJ-AIST, 9.University of Tokyo)

12:36 PM - 12:39 PM

[SGL38-P03] Detailed stratigraphy of diatom assemblages from a core of the Kokumoto Formation collected in the Boso Peninsula, Japan

3-min talk in an oral session

*Ikuko TANAKA1, Masayuki HYODO2, Ikuko KITABA3, Hiroshi SATO4 (1.Graduate School of Science, Kobe University, 2.Research Center for Inland Seas, Kobe University, 3.Research Centre for Palaeoclimatology, Ritsumeikan University, 4.Institute of Natural and Environmental Sciences, Univ. of Hyogo)