High-resolution stable isotopes and chemical analyses on laminations of the early Proterozoic stromatolite

Yuta Miyanishi; Kazuki Takamura; Nagayoshi Katsuta; Maki Morimoto; ATSUSHI YASUDA; Shin-ichi Kawakami

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[J] Poster

B (Biogeosciences ) » B-CG Complex & General

[B-CG07] Decoding the history of Earth: From Hadean to the present

Wed. May 29, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

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)

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[BCG07-P06] High-resolution stable isotopes and chemical analyses on laminations of the early Proterozoic stromatolite

Yuta Miyanishi¹, Kazuki Takamura¹, *Nagayoshi Katsuta¹, Maki Morimoto¹, ATSUSHI YASUDA², Shin-ichi Kawakami³ (1.Faculty of Education, Gifu University, 2.Earthquake Research Institute, University of Tokyo, 3.Faculty of Education, Gifu Shotoku Gakuen University)

Keywords:Stromatolite, Laminated structure, Stable isotope, Chemical composition

In this presentation, we report results of high-resolution analyses on δ¹³C-δ¹⁸O and chemical compositions of lamination in early Proterozoic stromatolite and then consider the mechanism of the laminae formations and the causes of their fluctuation patterns.