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EARTHQUAKE ›› 2000, Vol. 20 ›› Issue (z1): 115-118.

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Effect of ground fluid in the earthquake preparation and occurrence—— taking geothermal area in the southern Zhangjiakou as an example

WANG Ji-hua, LIN Yuan-wu, LIU Cheng-long   

  1. Institute of Geology, CSB, Beijing 100029, China
  • Received:2000-05-22 Revised:2000-06-12 Online:2000-09-30 Published:2022-09-23

Abstract: The characteristics of hydro thermal activity and earthquake activity in the southern Zhangjiakou are studied. The result indicates that the faulting strength will reduce owing to the effect of chemical and physical act of g round fluid on fault and i t s surrounding rocks, and this effect will be intenser with the increase of temperature and circulation depth of the fluid. It is suggested that the underground fluid will play a great role in the earthquake preparation and occurrence.

Key words: Ground fluid, Earthquake activity, Circulation depth, Water-rock interaction

CLC Number: