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| 引用本文： | 李松林,赖晓玲,何加勇,田建华.??????????????????????Ч???????????????[J].大地测量与地球动力学,2008,28(5):16-20. |
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| 作者姓名： | 李松林 赖晓玲 何加勇 田建华 |
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| 作者单位： | 1. 中国地震局地球物理勘探中心,郑州,450002
2. 中国地震局地球物理研究所,北京,100081 |
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| 基金项目： | 国家自然科学基金，财政部《南北地震带紧急强化震情跟踪专项经费》，中国地震局地球物理勘探中心项目 |
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| 摘 要： | ?????й???????????????????????????????????????????λ???????????????????????????????????????????ī?????????????????????????棬???????????????????????????????????????????????????????????????????????????????????Ч?????????????????????????????????????????????????????????????λ?????????????????????λ?????????????????????????????????????????????????????????????????????壬????????????????????????????д???
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| 关 键 词： | ????????Ч? ?????λ ???????????? ?????? ?????????? |
TRIGGER ACTION OF BRIDGMAN EFFECT ON STRONG EARTHQUAKES ANALYZED FROM DEEP TECTONIC CHARACTERISTICS |
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| Li Songlin,Lai Xiaoling,He Jiayong,Tian Jianhua.TRIGGER ACTION OF BRIDGMAN EFFECT ON STRONG EARTHQUAKES ANALYZED FROM DEEP TECTONIC CHARACTERISTICS[J].Journal of Geodesy and Geodynamics,2008,28(5):16-20. |
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| Authors: | Li Songlin Lai Xiaoling He Jiayong Tian Jianhua |
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| Institution: | 1)Geophysical Exploration Center, CEA，Zhengzhou 4500022)Institute of Geophysics，CEA，Beijing 100081 |
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| Abstract: | In the light of the results of deep exploration by Geophysical Exploration Center,CEA,it can be found that many strong earthquake focuses locate at the margin of upper mantle uplifts,and the Moho in an uplift region is no longer a sharp discontinuity,but a very complicated transitional zone due to the upsurging of deep substances.It is certain that the upsurging action must have a considerable effect on the faults nearby.A preliminary study is made from viewpoint of Bridgman effect.A relative rotation slip of two walls of a fault can be realized through chase-style motion,and no pre-left space is necessary at the two ends of the fault.Thus,the relative rotation will be much easier to take place than shear faulting.Due to the rotational movement caused by the uplifting action,the barriers existing on the contact surface of two walls will be destroyed and the contact surface will become smoother.It paves the way for future shear faulting. |
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| Keywords: | Bridgman effect chase-style motion rotation slip of a fault deep structures generating mechanism of strong earthquakes |
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