Japan Geoscience Union Meeting 2015

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Symbol B (Biogeosciences) » B-PT Paleontology

[B-PT23] Decoding the history of Earth: From Hadean to Modern

Mon. May 25, 2015 11:00 AM - 12:45 PM 104 (1F)

Convener:*Tsuyoshi Komiya(Department of Earth Science & Astronomy Graduate School of Arts and Sciences The University of Tokyo), Yasuhiro Kato(Department of Systems Innovation, Graduate School of Engineering, University of Tokyo), Katsuhiko Suzuki(Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology), Chair:Keiko Koshida(Department of Earth and Planetary Sciences, Tokyo Institute of Technology)

The latest results of Earth's evolution and geological processes through 4.6 billion years from Hadean to Modern, based on various approaches including fieldworks, chemical analyses, experiments and computer simulation, will be presented. In this session, we aim to discuss and understand causal relationships and interplay among the evolution of Earth's deep interior, changes in the surface environments, and development and evolution of life. Wide-ranging topics are accepted.

11:45 AM - 12:00 PM

[BPT23-11] secular change of seawater salinity through Earth history

*Takuya SAITO1, Takazo SHIBUYA2, Yusuke SAWAKI1, Tsuyoshi KOMIYA3, Shigenori MARUYAMA4 (1.Department of Earth & Planetary Sciences, Tokyo Institute of Technology, 2.Precambrian Ecosystem Laboratory, Japan Agency for Marine-Earth Science and Technology, 3.Department of Earth Science & Astronomy Graduate School of Arts and Sciences The University of Tokyo, 4.Earth-Life Science Institute, Tokyo Institute of Technology)

12:00 PM - 12:15 PM

[BPT23-12] ICA of the ~3.8Ga Isua supracrustal belt BIFs: Implications for the Eoarchean hydrothermal chemistry and processes

*Shogo AOKI1, Yasuhiro KATO2, Takafumi HIRATA3, Tsuyoshi KOMIYA1 (1.Department of General System Studies, Graduate School of Arts and Science, The University of Tokyo, 2.Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo, 3.Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto University)

12:15 PM - 12:30 PM

[BPT23-13] Reconstruction of 3.2Ga seafloor: Carbon and Sulfur isotopic analysis for DXCL drill cores of Pilbara, Western Australia

*Tsubasa MIKI1, Shoichi KIYOKAWA1, Hiroshi NARAOKA1, Naoto TAKAHATA2, Akizumi ISHIDA2, Takashi ITO3, Minoru IKEHARA4, Kosei E. YAMAGUCHI5, Yuji SANO2 (1.Department of Earth and Planetary Sciences, Graduate School of Sciences, Kyushu University, 2.Department of Chemical Oceanography, Atmosphere and Ocean Research Institute, University of Tokyo, 3.Teacher Training Course (Science Education), College of Education, Ibaraki University, 4.Research and Education Faculty, Center for Advanced Marine Core Research, Kochi University, 5.Department of Chemistry, Faculty of Science, Toho University; Astrobiology Institute, NASA)