| 中国大陆东部新构造期北西向断裂带的初步探讨 |
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| 引用本文： | 徐杰,马宗晋,陈国光,周本刚,李祥根,楚全芝.中国大陆东部新构造期北西向断裂带的初步探讨[J].地学前缘,2003,10(Z1):193-198. |
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| 作者姓名： | 徐杰 马宗晋 陈国光 周本刚 李祥根 楚全芝 |
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| 作者单位： | 中国地震局,地质研究所,北京,100029 |
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| 基金项目： | 中国地质调查局地质调查项目，国家自然科学基金，200113000053，40172101，， |
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| 摘 要： | 前人对中国大陆东部新构造期 (N—Q)活动的北东向断裂 (带 )已有很多研究。笔者根据地震构造、新构造和火山活动等资料并结合Pn波速结构研究结果 ,分析了该区新构造期的北西向活动断裂 ,初步得出 :北西向断裂具有成带性 ,可分 7条北西向断裂带 ;它们有鲜明的新生性 ;均为地壳构造带 ;与北东向断裂带呈共轭关系 ,是在先存构造基础上于新构造应力场作用下正在发育的一套地壳共轭剪切破裂系统。
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| 关 键 词： | 新构造期 北西向断裂带 地壳构造带 中国大陆东部 |
| 文章编号： | 1005-2321(2003)S0-0193-06 |
| 修稿时间： | 2002年9月29日 |
NW TRENDING ACTIVE FAULT ZONES OF THE EASTERN CHINESE CONTINENT IN NEOTECTONIC TIME |
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| XU Jie,MA Zong-jin,CHEN Guo-guang,ZHOU Ben-gang,LI Xiang-gen,CHU Quan-zhi.NW TRENDING ACTIVE FAULT ZONES OF THE EASTERN CHINESE CONTINENT IN NEOTECTONIC TIME[J].Earth Science Frontiers,2003,10(Z1):193-198. |
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| Authors: | XU Jie MA Zong-jin CHEN Guo-guang ZHOU Ben-gang LI Xiang-gen CHU Quan-zhi |
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| Abstract: | There have been numerous studies on the NE trending faults (zones) of the eastern Chinese continent since neotectonic time(N—Q). We have an analysis of the NW trending active faults of this region since neotectonic time on the basis of data of seismotectonics, neotectonics, volcanoes and the distribution of P_n Velocity. It is suggested that these faults are characterized by zone shape. They can be subdivided into seven active fault zones of NW strike. They have a clear nascent feature and are attributed to crustal structural zones. The NW and NE trending fault zones shape a conjugate pattern in this region, which represents a developing conjugate shear fracture system in the crust under the stress field since neotectonic time. |
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| Keywords: | neotectonics NW trending active fault zone crustal structural zone Eastern Chinese continent |
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