Japan Geoscience Union Meeting 2015

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Oral

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

[M-IS34] Paleoclimatology and paleoceanography

Thu. May 28, 2015 11:00 AM - 12:45 PM 301A (3F)

Convener:*Kazuyoshi Yamada(Museum of Natural and Environmental history, Shizuoka), Minoru Ikehara(Center for Advanced Marine Core Research, Kochi University), Tomohisa Irino(Faculty of Environmental Earth Science, Hokkaido 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), Takeshi Nakagawa(Ritsumeikan University), Akira Hayashida(Department of Environmental Systems Science, Doshisha University), Chair:Kazuyoshi Yamada(Museum of Natural and Environmental history, Shizuoka)

We discuss past environmental changes and events at multi-decadal to tectonic timescale toward an understanding of Earth climate system by an integration of terrestrial and marine proxy studies and numerical modeling. We welcome a variety of paleo-environmental studies from a wide range of background. This session includes a special series of presentations on robust correlation. A large number of palaeoclimatic proxy curves are being generated every day. However, many/most of those curves are not robustly placed in the correlation matrix. Robust correlation based on independent criteria such as precisely determined absolute ages and/or key layers is a prerequisite for assessment of relative timings and discussion of mechanisms. The frontier researches for robust and independent correlation will be presented and discussed. We hope that this session will provide an opportunity to promote communication between participants from multidisciplinary field.

11:30 AM - 11:45 AM

[MIS34-07] Detailed age determination of Cretaceous shallow marine - non-marine strata

*Hiroshi NISHI1, Reishi TAKASHIMA1, Syota JO2, Jun ARIMOTO2, Toshiro YAMANAKA3, Yuji ORIHASHI4, Koshi YAMAMOTO5, Yoshikazu KOCHI6, Keita UMETSU7 (1.The Center for Academic Resources and Archives, Tohoku University, 2.Department of Earth Science, Graduate School of Science, Tohoku University, 3.Graduate School of Natural Science and Technology, Okayama University, 4.Earthquake Research Institute, The University of Tokyo, 5.Graduate School of Environmental Studies, Nagoya University., 6.Graduate School of Science and Engineering for Education, University of Toyama, 7.Japan Agency for Marine-Earth Science and Technology)

12:00 PM - 12:15 PM

[MIS34-09] M-B boundary age constrained by high-precision U-Pb zircon dating of a widespread tephra in a sedimentary sequence

*Yusuke SUGANUMA1, Makoto OKADA2, Kenji HORIE1, Hiroshi KAIDEN1, Mami TAKEHARA3, Ryoko SENDA4, Jun-ichi KIMURA4, Kenji KAWAMURA1, Yuuki HANEDA2, Osamu KAZAOKA5, Martin Head6 (1.National Institute of Polar Research, 2.Ibaraki University, 3.Kyushu University, 4.JAMSTEC, 5.Research Institute of Environmental Geology, Chiba, 6.Brock University)