| 鲜水河断裂带断裂分叉机制及其与地震活动的关系(英文) |
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| 引用本文： | 钱洪.鲜水河断裂带断裂分叉机制及其与地震活动的关系(英文)[J].地震研究,1984(6). |
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| 作者姓名： | 钱洪 |
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| 作者单位： | 四川省地震局 |
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| 摘 要： | The Xianshui River faulll is a slrong seismic-genetic zone known both at home and abroad. It can be observed from the aerial photos and seismogeologic data that the northern segment of the fault is a linear single fault while its middle and southern segments extrude smoolhly toward the northeast. accompanied by sub-parallel fault branches. Citing Daofu area, Sichuan as an example and in the light of the geomorpholcgic evidences of the fault motions, seismic ground fissures and lhat contemporary seismicity tends to display itself along the linear faults, this paper discusses the branching mechanism of the Xianshui River fault, the process of which can be stated by the following:1) Linear faults tend to have the smallest resistance against horizontal shear motion. The Xianshui River fault presents single and linear features. 2) Slip rate difference at different segments of the fault owing to the different lithologic features and the NE pushing by the Asam syntaxis of the Indian plate have bent certain seg
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