Revealed the Mystery of Big Holes Appearing in an ice-covered Lake during Severe Winter
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A research group including Professor Ho-Dong Park of the Department of Environmental Science has identified the molecular species of deep subsurface gases seeping from Fault Lake at plate boundary and clarified the contribution to material circulation.
Key Points
- The results of a precise analysis of gas seeping from a fault lake (Lake Suwa) located on the Itoigawa-Shizuoka Tectonic Line between the Eurasian and North American Plates revealed that methane, which originates from the deep subsurface, is the main component of the gas.
- The results of this study suggest that the effects of these deep subsurface-derived seeping gases were found to propagate to surface photosynthetic microorganisms and ecosystems.
- Acquiring future data about the balance of the heat flow and detailed chemical fluxes from the deep subsurface is expected to lead to understanding the overall carbon cycle in this "geological hotspot" and elucidate the food chain in hydrosphere ecosystems.
Title of paper and Authors:
● Authors:
- Atsushi Urai (Japan Agency for Marine-Earth Science and Technology/JAMSTEC, Shinshu University)
- Yoshinori Takano (Japan Agency for Marine-Earth Science and Technology/JAMSTEC)
- Yohei Matsui (Japan Agency for Marine-Earth Science and Technology/JAMSTEC)
- Hiroki Iwata (Shinshu University)
- Yosuke Miyairi (The University of Tokyo)
- Yusuke Yokoyama (Japan Agency for Marine-Earth Science and Technology/JAMSTEC, The University of Tokyo)
- Yuichi Miyabara (Shinshu University)
- Naohiko Ohkouchi (Japan Agency for Marine-Earth Science and Technology/JAMSTEC)
- Ho-Dong Park (Shinshu University)
●Press Release on June 15, 2022, collaborated with JAMSTEC and The University of Tokyo (Japanese only)
https://www.shinshu-u.ac.jp/faculty/science/research/assets/cc24b2775270dade6b36436779139cfb.pdf
https://www.youtube.com/watch?v=T-vYsjWJD1s&feature=youtu.be
