Earth Science Frontiers ›› 2009, Vol. 16 ›› Issue (2): 369-377.

• Article • Previous Articles     Next Articles

Application of environmental isotopes and tracer techniques to seismic subsurface fluids.

  

  1. 1 Laboratory of Ground Fluid Dynamics, China Earthquake Administration, Beijing 100085, China
    2 Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China
    3 School of Water Resources and Environment, China University of Geosciences(Beijing), Beijing 100083, China
    4 China Earthquake Network Center, Beijing 100045, China

  • Online:2009-03-02 Published:2009-03-02

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Abstract:

In recent years, with the progress of new observation techniques and related theories, the tracing technique of environmental isotopes can be used to identify the dynamic information of groundwater, which is associated with the earthquake gestation and occurrence In this study, the characteristics of stable isotopes including 2H, 18O as well as radioactive isotopes such as 3H, 14C, and the tracing techniques are investigated Especially, with the environmental isotopes, the activity rules of groundwater including the groundwater recharge,circulation depth of geothermal water, waterrock interaction and groundwater age are discussed in depth The study was carried out to analyze the effects of the groundwater on its response to the stressstrain changes and to the tectonic activities It is worthy to mention that the tracing technique of environmental isotopes can be applied to identifying the information of seismic subsurface fluid, determining the intensity of seismicity, discussing the role of fluid in earthquake gestation, and estimating the effect of earthquake reflection in borehole

Key words:

environmental isotopes; tracing; subsurface fluid; earthquake

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