THE EARTHQUAKE FILLING OF INTERPLATES AND THE TYPES OF FAULT MOTION
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    Abstract:

    In accordance with the knowledge of earthquake packing in the edges of plate, an analysis is made in this article, by means of empirical formula about magnitude and the length of fault, on the relation between the geological structure and the earthquake activities in these fracture zones: Tancheng-Lujiang, Zhangjiakou-Yantai, Xianshuihe and the northern edge of Tarim Basin. It is pointed out that inside plates, there also exists such a phenoninon that earthquakes can always be filled and packed along the fracture zones. This kind of earthquake filling and packing is mainly on the zones of torque-compression type and shear slip type. A continuous active fracture zone is on imperative geological condition for earthquake filling inside plates.
    The authors propose that there is very close relation between the earthquake filling and the defferent type(or state)of modern fault motion. The progress in which an active fault develops from stable sliding and relative close and lock to rupture and displacement, is just. the process in which gap of earthquake forms, develops and even a great earthquake begins. What is corresponded with this is the segment of stress accumulahion, locked and release. In geology, the difference between them is: new sediment cover on fault is less and less in order; the bond strength of gouge decreases but its thickness increases. So, a special attention must be paid to those active faults with more new sediment on them, which have been activized since Holocene.

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History
  • Received:January 02,1985
  • Revised:
  • Adopted:
  • Online: July 04,2017
  • Published: