苍山5.2级地震前十里泉电厂井地下水离子多组分的变化特征及机制讨论
- 收稿日期:
1997-02-28
- 刊出日期:
1998-03-15
摘要: 1995年9月20日山东苍山5.2级地震前,山东枣庄十里泉电厂水化学现观测井(△=60km)水离子多组分出现了较为同步的异常变化、本文以此为基础,分析研究了这些异常的变化特征,讨论了异常出现的机制,研究认为,枣庄十里泉电厂水化学观测井水离子多组分的异常同步变化及相互印证,提高了异常的可信度;与水中常见离子组分相比,其中水汞的震前异常变化幅度最大,异常特征明显;十里泉电厂水化学观测井水离子多组分的同步异常变化,有可能反映了苍山5.2级地震前苍山-尼山断裂活动加剧,井孔周围地应力的增强,蕴含着震源附近断层活动的信息。
The discussion on the characteristics and mechanism of seismic anomaly of many hydrogeochemical elements in shiliquan well before cangshan Ms 5.2 earthquake
- 1. Seismological Bureau of Shandong Province, Jinan, 250014;
- 2. Zaozhuang Seismological office, Shandong Province, Zaozhuang, 277101
- Received Date:
1997-02-28
- Publish Date:
1998-03-15
Abstract: Many hydrogeochemical elements in Shiliquan Well (△=60km) showed synchronous abnormalchanges before Cangshan Ms 5. 2 earthquake. On the basis of the changes, we have researched the characteristics and forming mechanism of them and considered that the synchronous abnormal changes of many hydrogeochemical elaments increeased the reliability of seismic anomalies and that the abnormal extent of water Hg content is larger and clearear than other hydrogeochemical elements. We have obtained the conclusion that the synchronous abnormal change of many hydrogeochemical elements in Shiliquan Well is the reflection of stress increasing caused by activity of Cangshan-Nishan fault zone near the well before Cangshan Ms5. 2 earthquake, which contains the information of the activity ofsource fault.
耿杰, 马志峰, 李金波. 苍山5.2级地震前十里泉电厂井地下水离子多组分的变化特征及机制讨论[J]. 华北地震科学, 1998, 16(1): 36-40.
| 引用本文: |
耿杰, 马志峰, 李金波. 苍山5.2级地震前十里泉电厂井地下水离子多组分的变化特征及机制讨论[J]. 华北地震科学, 1998, 16(1): 36-40.
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Geng Jie, Ma zhifeng, Li Jinbo. The discussion on the characteristics and mechanism of seismic anomaly of many hydrogeochemical elements in shiliquan well before cangshan Ms 5.2 earthquake[J]. North China Earthquake Sciences, 1998, 16(1): 36-40.
| Citation: |
Geng Jie, Ma zhifeng, Li Jinbo. The discussion on the characteristics and mechanism of seismic anomaly of many hydrogeochemical elements in shiliquan well before cangshan Ms 5.2 earthquake[J]. North China Earthquake Sciences, 1998, 16(1): 36-40.
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