Tracking supercritical geothermal fluid distribution from continuous seismic monitoring
書誌事項
- 公開日
- 2023-05-24
- 資源種別
- journal article
- 権利情報
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- https://creativecommons.org/licenses/by/4.0
- https://creativecommons.org/licenses/by/4.0
- DOI
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- 10.1038/s41598-023-35159-8
- 10.21203/rs.3.rs-2602538/v1
- 公開者
- Springer Science and Business Media LLC
説明
<jats:title>Abstract</jats:title> <jats:p>Continuous seismic monitoring could play a pivotal role in deep geothermal energy exploration. We monitored seismicity near geothermal production areas of the Kuju volcanic complex with a dense seismic network and automated event detection. Most events were shallow (less than 3 km below sea level) and distributed along a boundary between regions of high and low resistivity and S-wave velocity, interpreted as a lithological boundary or related fracture zone. Deeper events located on top of subvertical conductors may reflect fracturing associated with magmatic fluid intrusion. A correlation may exist between seismicity and heavy rainfall three days prior to increased pore pressure in pre-existing fractures. Our findings support the presence of supercritical geothermal fluids and demonstrate the importance of continuous seismic monitoring in supercritical geothermal energy exploration.</jats:p>
収録刊行物
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- Scientific Reports
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Scientific Reports 13 (1), 2023-05-24
Springer Science and Business Media LLC
