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| 北淮阳及其邻接区地壳稳定性研究 | |
| 引用本文： | 李细光,曾佐勋,彭晓文,曾克峰,张志.北淮阳及其邻接区地壳稳定性研究[J].大地构造与成矿学,2003,27(3):287-294. |
| 作者姓名： | 李细光 曾佐勋 彭晓文 曾克峰 张志 |
| 作者单位： | 1. 中国地质大学(武汉)地球科学学院,湖北,武汉,430074;华中构造力学研究中心,湖北,武汉,430074 2. 南方冶金学院南昌分校基础部,江西,南昌,330013 3. 中国地质大学(武汉)地球科学学院,湖北,武汉,430074 |
| 基金项目： | 河南省信阳市燃气发展有限公司“信阳市燃气混气站断裂活动性和场地稳定性研究”项目. |
| 摘 要： | 运用多学科、多技术相结合的研究方法,从现今构造应力场特征、现代地壳形变特征、主干断裂构造以及区域断裂活动性分析、新构造运动、地震活动、数值模拟等方面入手,对北淮阳及其邻接区地壳稳定性进行了全面而系统的研究,指出本区地震活动受走滑活动断裂控制,中、强地震集中于区内东南部和西北部NW向与NE向断裂交汇处;第四纪无大规模差异升降运动;数值模拟等综合分析表明,信阳地区的区域构造稳定性高,现代地壳形变量小,应力平缓,地震活动少且弱。 |
| 关 键 词： | 北淮阳 地壳稳定性 现今构造应力场 新构造运动 数值模拟 |
| 文章编号： | 1001-1552(2003)03-0287-08 |
| 修稿时间： | 2003年3月10日 |
A STUDY ON CRUSTAL STABILITY OF BEIHUAIYANG REGION AND ITS ADJACENT AREAS |
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| LI Xi-guang ,ZENG Zuo-xun ,PENG Xiao-wen ,ZENG Ke-feng and ZHANG Zhi.A STUDY ON CRUSTAL STABILITY OF BEIHUAIYANG REGION AND ITS ADJACENT AREAS[J].Geotectonica et Metallogenia,2003,27(3):287-294. | |
| Authors: | LI Xi-guang ZENG Zuo-xun PENG Xiao-wen ZENG Ke-feng and ZHANG Zhi |
| Institution: | LI Xi-guang 1,2,ZENG Zuo-xun 1,2,PENG Xiao-wen 3,ZENG Ke-feng 1 and ZHANG Zhi 1 |
| Abstract: | By means of different subjects and te chniques,the paper makes an overall study on the crustal stability of Beihuaiyang region and its adjace nt areas from the aspects of current t ectonic stress fields,principal fa ult structures,analysis of regional fa ults and neotectonic activity,seis mic activity and numerical modeling,etc.It points out that under the action of th e E-W principal stress,the Funiu mou ntains and the Tongbo mountains are upwarped in the north-west of the are a and the Dabie mountains subside in t he south-east of the area.The seismi c activity in the area is controlled by fault structures,middle and strong earthquakes are focused on the north-west and south-east areas intersected by NW-and NE-trending faults.The engineering site in the middle of the area is located in a fault block without active regional fault pass and large-scale Quaternary tectonic movement,which seismic activity is rare and weak,an d it is a stable"island". |
| Keywords: | Beihuaiyang Crustal stability Current tectonic stress fields Neote ctonic activity Numerical modeling |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |