| 三峡及邻区新构造期以来应力场分区研究 |
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| 引用本文： | 杨淑贤,高士钧,蔡永建,黄江. 三峡及邻区新构造期以来应力场分区研究[J]. 大地测量与地球动力学, 2005, 25(4): 42-45 |
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| 作者姓名： | 杨淑贤 高士钧 蔡永建 黄江 |
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| 作者单位： | 中国地震局地震研究所,武汉,430071;武汉地震工程研究院,武汉,430071;中国地震局地震研究所,武汉,430071;武汉地震工程研究院,武汉,430071;中国地震局地震研究所,武汉,430071;武汉地震工程研究院,武汉,430071;中国地震局地震研究所,武汉,430071;武汉地震工程研究院,武汉,430071 |
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| 摘 要： | 利用地形变测量、震源机制和钻孔应力测量等资料，综合研究了三峡及邻区的构造应力场。结果表明，研究区在大区域近东西向构造应力场作用下．新构造期一现代构造应力场的作用方向具有明显的分区性，即北区呈近北西西向挤压；西区呈北西向挤压；东区呈北东向挤压。
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| 关 键 词： | 三峡及邻区 新构造期-现代 构造应力场 应力场分区 研究 |
| 文章编号： | 1671-5942(2005)04-0042-04 |
| 修稿时间： | 2005-03-20 |
STUDY ON STRESS FIELD ZONING IN THREE GORGES AND ITS ADJACENT AREA SINCE NEOTECTONIC AGE |
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| Yang Shuxian,Gao Shijun,Cai Yongjian,Huang Jiang. STUDY ON STRESS FIELD ZONING IN THREE GORGES AND ITS ADJACENT AREA SINCE NEOTECTONIC AGE[J]. Journal of Geodesy and Geodynamics, 2005, 25(4): 42-45 |
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| Authors: | Yang Shuxian Gao Shijun Cai Yongjian Huang Jiang |
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| Abstract: | We have studied synthetically the tectonic stress field in the Three Gorges and its adjacent area by use of data of crustal deformation,focal mechanism and borehole stress observation.The results show that the acting direction of tectonic stress field since the Neotectonic(the contemporary) age has obvious zoning characteristics under the affect of near eastwestward tectonic stress field in the large area,i.e.,there is a NWW compression in the north part of studied area,a NW compression in the west part,a NE compression in the east part. |
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| Keywords: | the Three Gorges and its adjacent area the Neotectonic(the contemporary) age tectonic stress field zoning characteristics study |
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