The 131st Annual Meeting of the Geological Society of Japan
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Presentation Information

10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)ECSentry

[T13-O-16]Formation mechanism of double-layered spherical concretions from the Atsuta Formation, Ishikari, Hokkaido

*Alvin Loran Yamaguchi PRAET1, Hidekazu YOSHIDA2, Yusuke MURAMIYA3, Akihiro KANO1, Taro KIDO1, Nagayoshi KATSUTA4 (1. The University of Tokyo, 2. Nagoya University Museum, 3. Fukada Geological Institute, 4. Gifu University)
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Keywords:

carbonate concretion,double-layered spherical concretion,early diagenesis,methanogenesis,stable carbon isotope

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