| 甘青地震区地震条带与地震构造格局 |
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| 引用本文： | 刘仲方. 甘青地震区地震条带与地震构造格局[J]. 防灾减灾工程学报, 1987, 0(2) |
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| 作者姓名： | 刘仲方 |
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| 作者单位： | 江苏省地震局 |
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| 摘 要： | 甘青地震区震源优势分布在10-30公里深处的中地壳.NWW,NNW,近E-W和NE向四组地震条带交织成网,以前二者为主,呈菱形格局.NWW向地震条带受深断裂和地壳深度变异带控制;NNW向地震条带受壳内新构造断裂活动控制.它们构成的菱形网络与现代隆起和盆地构成的条-块状构造和地貌十分吻合.
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Journal of Seismology SEISMIC ZONING AND SEISMOTECTONIC FRAMEWORK IN GAN-QIN SEISMIC REGION |
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| Abstract: | Earthquake foci in Gan-Qin seismic region distribute predominantly in middle crust with a depth of 10-30 km. Four groups of seismic zones-trending NWW,NNW, nearly EW, and NE, of which the former two are major-interweave to form a seismic network of rhombic famework.The NWW and NNW trending seismic zones are controlled respectively by deep crust faulting and the neotectonic faults. The rhombic network is very coincident with the strip-block structurs and landform of modern upwarpings and basins. |
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