| 利用声发射研究郯庐断裂北段古应力事件 |
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| 引用本文： | 解国爱,王锡勇,张庆龙,王良书,徐士银.利用声发射研究郯庐断裂北段古应力事件[J].大地构造与成矿学,2009,33(3). |
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| 作者姓名： | 解国爱 王锡勇 张庆龙 王良书 徐士银 |
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| 作者单位： | 南京大学地球科学与工程学院,江苏,南京,210093 |
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| 基金项目： | 中国石化项目"松辽盆地南部断陷层构造沉积特征研究" |
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| 摘 要： | 采用声发射实验方法,测试分析了郯庐断裂带北段古构造应力场,结果显示郯庐断裂北段西侧自晚奥陶世以来,经历了8次古构造事件,最大主应力有效值为153.6MPa;从早二叠世至早燕山期,测区构造运动很弱;早白垩世以来有4次古构造事件。由此推断依兰-伊通断裂和哈尔滨-长春断裂形成于古生代,燕山运动使其演化成大型走滑断裂。
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| 关 键 词： | 声发射实验 郯庐断裂带北段 古构造事件 |
Application of Acoustic Emission in the Study of Paleo-Tectonic Events in the Northern Part of Tanlu Fracture |
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| XIE Guoai,WANG Xiyong,ZHANG Qinglong,WANG Liangshu,XU Shiyin.Application of Acoustic Emission in the Study of Paleo-Tectonic Events in the Northern Part of Tanlu Fracture[J].Geotectonica et Metallogenia,2009,33(3). |
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| Authors: | XIE Guoai WANG Xiyong ZHANG Qinglong WANG Liangshu XU Shiyin |
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| Abstract: | By using acoustic emission to study the paleo-tectonic events field in the north segment of the Tanlu fracture,the result indicates that this area has undergone eight paleo-tectonic movements since Late Ordovician. The maximum principal stress value has been determined as 153.6 MPa. There were no or weak tectonic movements from Early Permian to the early Yanshan movement. There were four paleo-tectonic movements after Early Cretaceous. AE results show that the Yilan-Yitong and Haerbing-Changchun faults were formed in the Proterozic,then the movment stopped. The Tanlu fracture strongly moved in the Yanshan period,and became a large-scale strike-slip fault. |
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| Keywords: | acoustic emission north segment of Tanlu fracture paleo-tectonic events Yanshan period |
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