| 河西—祁连山地区近期形变场演化特征与孕震构造模式 |
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| 引用本文： | 王庆良.河西—祁连山地区近期形变场演化特征与孕震构造模式[J].地震,1994(3):64-71. |
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| 作者姓名： | 王庆良 |
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| 作者单位： | 国家地震局第二地形变监测中心 中国西安 |
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| 摘 要： | 本文通过对河西－祁山地区近２０年形变场演化特征的分析，提出了代表该区区域应力松驰、岩石圈底部软流层对流加速以及地壳中上部应力强化与强震孕育三种应力状态的特征性形变图象，文章还通过典型强震构造组合特征、形变场特征的分析，提出了该区北西西、北东向两组构造的组合孕震模式，并利用上述孕震模式对该区近期强震危险地点进行了初步判定。
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| 关 键 词： | 孕震 构造模式 形变场演化 |
EVOLUTIONAL CHARACTERISTICS OF RECENT DEFORMATION FIELD AND SEISMOGENIC TECTONIC MODEL IN HEXI -MT.QILIAN AREA |
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| Wang Qingliang.EVOLUTIONAL CHARACTERISTICS OF RECENT DEFORMATION FIELD AND SEISMOGENIC TECTONIC MODEL IN HEXI -MT.QILIAN AREA[J].Earthquake,1994(3):64-71. |
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| Authors: | Wang Qingliang |
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| Abstract: | Through analysis of the evolutional features of tectonic deformation field of re -cent 20 years in Hexi-Mt. Qilian area, three characteristic vertical deformation patterns are put forward, which represent regional stress relaxation, convectional acceleration of asthenosphere as well as stress strengthening and strong earthquake development and occurence in middle and upper crust, repectively. The seismogenic combination model of NWW and NE structures is also advanced through analysis of tectonic combina -tion features and deformation field features of some typical strong earthquakes. Based on the seismogenic model, the risky location of strong earthquakes in Hexi-Mt. Qilian area is further discussed in the paper. |
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| Keywords: | convectional acceleration of asthenosphere stress strengthening cha - racteristic deformation pattern structural combination seismogenic model danger location of strong earthquake |
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