九江-瑞昌地震序列的构造背景与发震构造探讨
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摘要
通过遥感、余震分布、现场考察等各种手段证实瑞昌北部存在一组至少切穿上地壳的北北西向断裂——武山隐伏断裂,并认为九江-瑞昌地震是北东向瑞昌-武宁断裂与武山隐伏断裂共同作用的结果。更具体地说,主震由瑞昌-武宁断裂控制,余震受武山隐伏断裂控制。
Through a variety of means,such as remote sensing,distribution of aftershock and field exploration,it is proved that in the north to Ruichang there is a group of NNW fault——Wushan buried fault which dissecting through the upper crust at least and then it is proposed that the Jiujiang-ruichang earthquake may result from the NE Ruichang-Wuning fault together with the Wushan buried fault,concretely,the mainshock is controled by the former and the aftershock by the later.
Through a variety of means,such as remote sensing,distribution of aftershock and field exploration,it is proved that in the north to Ruichang there is a group of NNW fault——Wushan buried fault which dissecting through the upper crust at least and then it is proposed that the Jiujiang-ruichang earthquake may result from the NE Ruichang-Wuning fault together with the Wushan buried fault,concretely,the mainshock is controled by the former and the aftershock by the later.
引文
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2地矿部江西地质矿产勘查开发局赣西北大队区调分队.中华人民共和国地质图说明书(1/5万,瑞昌县幅),1987.
3吕新彪,姚书振,周宗桂.江西九瑞地区岩浆岩系统与成矿[J].华南地质与矿产,1997,1:27~36.
4陈广浩,王岳军,张湘炳.应用遥感图像分析九江瑞昌地区构造与金铜成矿的关系[J].黄金科学技术,1998,6(3):30~33.
5李峰.九江-瑞昌5.7级地震现场波形监测记录分析[J].大地测量与地球动力学,2006,26(增):109~111.
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