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Lu, KQ; Hou, MY; Wang, Q; Jiang, ZH; Liu, JX; Lu, KQ (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Key Lab Soft Matter Phys, Inst Phys, Beijing 100190, Peoples R China.
Propagation, distribution and detection principle of seismic precursory signals
Source PublicationACTA PHYSICA SINICA
Language中文
AbstractThe earth crust consists of tectonic plates, faults and the fault gouges at their boundaries. In the case of studying such an issue as quasi-static mechanics on the seismic precursory spreading, the crustal lithosphere must be treated as a granular system consisting of large-scale discrete grains. In the process of seismogeny, the rock blocks driven by tectonic forces induce a stick-slip motion by overcoming the friction and the boundary resistance. When the fault gouges between blocks are squeezed and their strength increases to a certain degree, the next block will be pushed to generate a stick-slip motion and the successive rock blocks move gradually in the same way. As in any granular system, the distribution and transfer of force and the movement of the rock blocks must be in the chain-like form. This model is not only reasonably deduced front the physical bases, but also supported by many actual observations. In this work the distribution of force-motion-deformation and the spreading time sequence are given with the simulated experiments and analysis. The main feature of the generated precursory information is described. The essential difference between the understanding of seismic precursor led by viewing the crustal lithosphere as granular system and that as continuum medium is presented. How to acquire effective seismic precursory information as well as how to associate it with the occurrence of earthquake is discussed. Some of the seismology problems are explained reasonably, which can be hardly understood front the continuum medium yiew point.
2011
ISSN1000-3290
Volume60Issue:11Pages:119101
Subject AreaPhysics
Indexed BySCI
Funding OrganizationChinese Academy of Sciences, China [KJCX2-SW-W15, KKCX1-YW-03]; National Natural Science Foundation of China [10374111] ; Chinese Academy of Sciences, China [KJCX2-SW-W15, KKCX1-YW-03]; National Natural Science Foundation of China [10374111] ; Chinese Academy of Sciences, China [KJCX2-SW-W15, KKCX1-YW-03]; National Natural Science Foundation of China [10374111] ; Chinese Academy of Sciences, China [KJCX2-SW-W15, KKCX1-YW-03]; National Natural Science Foundation of China [10374111]
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14237
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLu, KQ (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Key Lab Soft Matter Phys, Inst Phys, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Lu, KQ,Hou, MY,Wang, Q,et al. Propagation, distribution and detection principle of seismic precursory signals[J]. ACTA PHYSICA SINICA,2011,60(11):119101.
APA Lu, KQ,Hou, MY,Wang, Q,Jiang, ZH,Liu, JX,&Lu, KQ .(2011).Propagation, distribution and detection principle of seismic precursory signals.ACTA PHYSICA SINICA,60(11),119101.
MLA Lu, KQ,et al."Propagation, distribution and detection principle of seismic precursory signals".ACTA PHYSICA SINICA 60.11(2011):119101.
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