[B-PT05] Decoding the history of Earth: From Hadean to Modern

Wed. May 25, 2016 1:45 PM - 3:15 PM 105 (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(Research and Development Center for Submarine Resources, Japan Agency for Marine-Earth Science and Technology), Chair:Masafumi Saitoh(Japan Agency for Marine-Earth Science and 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.

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1:45 PM - 2:00 PM

[BPT05-13] Mid-oceanic ridge is not the birth place of life: secondary place to live

*Shigenori Maruyama¹ (1.Earth-Life Science Institute, Tokyo Institute of Technology)

2:00 PM - 2:15 PM

[BPT05-14] Origin of hydrocarbons from serpentinite-hosted Hakuba Happo hot spring: Molecular and intramolecular ¹³C analyses

*Konomi Suda¹, Yuichiro Ueno^1,2,3, Alexis Gilbert², Naohiro Yoshida^2,4 (1.Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2.Earth-Life Science Institute (WPI-ELSI), Tokyo Institute of Technology, 3.Precambrian Ecosystem Laboratory, JAMSTEC, 4.Department of Environmental Chemistry and Engineering, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology)

2:15 PM - 2:30 PM

[BPT05-15] Experimental study on H₂ generation through reactions between komatiite and CO₂-rich seawater

*Hisahiro Ueda^1,2, Takazo Shibuya², Yusuke Sawaki¹, Masafumi Saitoh², Ken Takai², Shigenori Maruyama³ (1.Tokyo institute of technology, 2.JAMSTEC, 3.ELSI)

2:30 PM - 2:45 PM

[BPT05-16] Whole-rock abundances and spatial distributions of transition elements in the Early and Middle Archean BIFs: The mechanism of their involvement in the BIFs and reconstruction of the chemical evolution of seawater in the Precambrian.

*Shogo Aoki¹, Yasuhiro Kato², Takafumi Hirata³, Tsuyoshi Komiya¹ (1.Graduate School of arts and science, University of Tokyo, 2.School of Engineering, The University of Tokyo, 3.Graduate School of Science, Kyoto University)

2:45 PM - 3:00 PM

[BPT05-17] Estimation of 3.2 Ga seawater-hydrothermal environment from sulfur isotopic analyses of barite crystals in Dixon Island Formation, Western Australia

*Tsubasa Miki¹, Shoichi Kiyokawa¹, Naoto Takahata², Akizumi Ishida², Takashi Ito³, Minoru Ikehara⁴, Kosei E. Yamaguchi^5,6, Yuji Sano² (1.Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University, 2.Atmosphere and Ocean Research Institute, University of Tokyo, 3.College of Education, Ibaraki University, 4.Center for Advanced Marine Core Research, Kochi University, 5.Faculty of Science, Toho University, 6.Astrobiology Institute, NASA)

3:00 PM - 3:15 PM

[BPT05-18] Ediacaran sulfur cycling reconstructed from an isotopic analysis of carbonate associated sulfate in Doushantuo Formation

*Fumihiro Matsuura¹, Masafumi Saitoh², Yusuke Sawaki¹, Yuichiro Ueno^1,2,3 (1.Tokyo Institute of Technology, 2.JAMSTEC, 3.Earth-Life Science Institute)