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| 利用流体包裹体分析技术研究地震和断层活动的进展 |
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孙凤霞1,2, 崔月菊1, 杨帆3, 刘轶男4, 姜莉1,2, 杜建国1,2
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1.高压物理与地震科学联合实验室, 中国地震局地震预测重点实验室, 北京 100036;2.中国地质大学(北京), 地球科学与资源学院, 北京 100083;3.中国地震局第二监测中心, 西安 710054;4.吉林丰满地震台, 吉林吉林 132108
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| 摘要: |
| 矿物中的流体包裹体记录了地球古流体的形成和演化、矿物的形成环境等各种地质信息。利用微区微量测量技术测定断裂带脉石矿物流体包裹体可以获得断层和地震活动的信息,延长认识地震复发周期的时间,对确定地震活动规律有重要意义。迄今为止,地震流体研究主要是关于宏观区域流体(水和气体)变化规律及其与地震的关系,对微区微量流体的研究很少。本文扼要介绍了地震和构造活动中流体作用与流体包裹体拉曼光谱测量技术,综述了流体包裹体(FI)分析在地震与断裂活动方面的研究进展,并提出了进一步研究的领域,以期促进微区微量地震流体研究和应用。 |
| 关键词: 流体包裹体 古地震 断层 地震活动周期 岩脉 |
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| 基金项目:中国地震局基本科研业务费专项(2019IEF0502)、高压物理与地震科学联合实验室基金项目(2019HPPES08)共同资助 |
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| Development of Analyzing Techniques of Fluids Inclusions in Investigations for Earthquake and Fault |
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Sun Fengxia1,2, Cui Yueju1, Yang Fan3, Liu Yinan4, Jiang Li1,2, Du Jianguo1,2
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1.United Laboratory of High-Pressure Physics and Earthquake Science, Key Laboratory of Earthquake Prediction, Institute of Earthquake Forecasting, CEA, Beijing 100036, China;2.School of the Earth Science and Resources, China University of Geosciences(Beijing), Beijing 100083, China;3.Second Monitoring and Application Center, China Earthquake Administration, Xi'an 710054, China;4.Fengman Seismic Station, Jilin Earthquake Agency, Jilin 132108, Jilin, China
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| Abstract: |
| Fluid inclusions in minerals record many kinds of information about formation and evolution of paleofluids in the Earth,environment of mineral formation,etc. Measurement of fluid inclusions by the techniques of micro area and trace amount analysis can help to obtain information about earthquake and fault activities. Investigation of paleoearthquake using analyzing fluid inclusion in minerals in veins can extend the time scale for studying earthquake recurrence period,which is significant for seismic study. So far,seismic researches of fluids mainly concern correlation between law of fluid variations (water and gas) in the macro regions and earthquakes,but rarely for trace fluids in minerals. In this paper we briefly introduced fluid role in earthquake and fault activities and techniques for analyzing fluids inclusions,and reviewed advance of investigations for earthquake and fault using analyzing techniques of fluids inclusions,and finally suggested the further related research aspects. |
| Key words: Fluid inclusion Paleoearthquake Fault Earthquake recurrence period Vein |
