Short-term seismic precursor anomalies in hydrogen concentration at fault gas stations along the Northern Margin Fault of the Yanqing Basin of Beijing, China
The Northern Margin Fault of the Yanqing Basin (NMYB Fault) is an important active fault at the intersection of the Zhangjiakou–Bohai (Zhang-Bo) Belt and the Shanxi Belt in North China. The Yanqing Basin, controlled by the NMYB Fault, is rich in escaping gas from hot springs, and previous investigat...
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Frontiers Media S.A.
2025-01-01
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| author | Mingbo Yang Guiping Liu Yuxuan Chen Peixue Hua Leyin Hu Zhiguo Wang Shanshan Wang Xiaoru Sun Yonggang Zhou Haichun Zhang Gang Feng Xiang Gao Yuqi Zhang |
| author_facet | Mingbo Yang Guiping Liu Yuxuan Chen Peixue Hua Leyin Hu Zhiguo Wang Shanshan Wang Xiaoru Sun Yonggang Zhou Haichun Zhang Gang Feng Xiang Gao Yuqi Zhang |
| author_sort | Mingbo Yang |
| collection | DOAJ |
| description | The Northern Margin Fault of the Yanqing Basin (NMYB Fault) is an important active fault at the intersection of the Zhangjiakou–Bohai (Zhang-Bo) Belt and the Shanxi Belt in North China. The Yanqing Basin, controlled by the NMYB Fault, is rich in escaping gas from hot springs, and previous investigations have indicated that the Yanqing Basin is located in the peak area of upwelling deep fluids from the mantle source material within the Zhang-Bo Belt. Hence, the site is suitable for geochemical gas precursor observations; to facilitate this, five new fault soil gas continuous stations were built on different segments of the NMYB Fault to carry out observations of fault gas (H2 and CO2) concentrations. The five new stations were approximately 50–60 m deep in the bedrock to monitor the release of gas from the depths of the fault. This was the first time that such geochemical station arrays were deployed in the same fault zone at a high density and depth. The results of the deep-hole observations of fault gas within the Yanqing Fault zone show that the time series of the hydrogen (H2) escape gas concentration has a close relationship with recent seismic activities, reflecting different physical processes of YFBF fault activity. The H2 concentration at the observatory was more sensitive to the stress-loading response of the NMYB Fault system. |
| format | Article |
| id | doaj-art-598a3afcd7ea4be7848c4a8e5d7021a7 |
| institution | Kabale University |
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| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Earth Science |
| spelling | doaj-art-598a3afcd7ea4be7848c4a8e5d7021a72025-01-06T06:59:40ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632025-01-011210.3389/feart.2024.14746301474630Short-term seismic precursor anomalies in hydrogen concentration at fault gas stations along the Northern Margin Fault of the Yanqing Basin of Beijing, ChinaMingbo Yang0Guiping Liu1Yuxuan Chen2Peixue Hua3Leyin Hu4Zhiguo Wang5Shanshan Wang6Xiaoru Sun7Yonggang Zhou8Haichun Zhang9Gang Feng10Xiang Gao11Yuqi Zhang12Beijing Earthquake Agency, Beijing, ChinaBeijing Earthquake Agency, Beijing, ChinaBeijing Earthquake Agency, Beijing, ChinaBeijing Earthquake Agency, Beijing, ChinaBeijing Earthquake Agency, Beijing, ChinaBeijing Earthquake Agency, Beijing, ChinaBeijing Municipal Commission of Planning and Natural Resources, Beijing, ChinaBeijing Earthquake Agency, Beijing, ChinaThe Bureau of seismology of Yanqing District of Beijing, Beijing, ChinaBeijing Earthquake Agency, Beijing, ChinaBeijing Earthquake Agency, Beijing, ChinaBeijing Earthquake Agency, Beijing, ChinaThe Bureau of seismology of Haidian District of Beijing, Beijing, ChinaThe Northern Margin Fault of the Yanqing Basin (NMYB Fault) is an important active fault at the intersection of the Zhangjiakou–Bohai (Zhang-Bo) Belt and the Shanxi Belt in North China. The Yanqing Basin, controlled by the NMYB Fault, is rich in escaping gas from hot springs, and previous investigations have indicated that the Yanqing Basin is located in the peak area of upwelling deep fluids from the mantle source material within the Zhang-Bo Belt. Hence, the site is suitable for geochemical gas precursor observations; to facilitate this, five new fault soil gas continuous stations were built on different segments of the NMYB Fault to carry out observations of fault gas (H2 and CO2) concentrations. The five new stations were approximately 50–60 m deep in the bedrock to monitor the release of gas from the depths of the fault. This was the first time that such geochemical station arrays were deployed in the same fault zone at a high density and depth. The results of the deep-hole observations of fault gas within the Yanqing Fault zone show that the time series of the hydrogen (H2) escape gas concentration has a close relationship with recent seismic activities, reflecting different physical processes of YFBF fault activity. The H2 concentration at the observatory was more sensitive to the stress-loading response of the NMYB Fault system.https://www.frontiersin.org/articles/10.3389/feart.2024.1474630/fullZhangjiakou–Bohai tectonic zonegas geochemistryhelium isotopeYanqing–Huailai basinearthquake prediction |
| spellingShingle | Mingbo Yang Guiping Liu Yuxuan Chen Peixue Hua Leyin Hu Zhiguo Wang Shanshan Wang Xiaoru Sun Yonggang Zhou Haichun Zhang Gang Feng Xiang Gao Yuqi Zhang Short-term seismic precursor anomalies in hydrogen concentration at fault gas stations along the Northern Margin Fault of the Yanqing Basin of Beijing, China Frontiers in Earth Science Zhangjiakou–Bohai tectonic zone gas geochemistry helium isotope Yanqing–Huailai basin earthquake prediction |
| title | Short-term seismic precursor anomalies in hydrogen concentration at fault gas stations along the Northern Margin Fault of the Yanqing Basin of Beijing, China |
| title_full | Short-term seismic precursor anomalies in hydrogen concentration at fault gas stations along the Northern Margin Fault of the Yanqing Basin of Beijing, China |
| title_fullStr | Short-term seismic precursor anomalies in hydrogen concentration at fault gas stations along the Northern Margin Fault of the Yanqing Basin of Beijing, China |
| title_full_unstemmed | Short-term seismic precursor anomalies in hydrogen concentration at fault gas stations along the Northern Margin Fault of the Yanqing Basin of Beijing, China |
| title_short | Short-term seismic precursor anomalies in hydrogen concentration at fault gas stations along the Northern Margin Fault of the Yanqing Basin of Beijing, China |
| title_sort | short term seismic precursor anomalies in hydrogen concentration at fault gas stations along the northern margin fault of the yanqing basin of beijing china |
| topic | Zhangjiakou–Bohai tectonic zone gas geochemistry helium isotope Yanqing–Huailai basin earthquake prediction |
| url | https://www.frontiersin.org/articles/10.3389/feart.2024.1474630/full |
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