| 玛曲—北川MT大剖面及川西北地壳结构初探 |
| |
| 引用本文： | 黄锐,李爱勇,朱春生,杨生.玛曲—北川MT大剖面及川西北地壳结构初探[J].西北地震学报,2010,32(4):334-338. |
| |
| 作者姓名： | 黄锐 李爱勇 朱春生 杨生 |
| |
| 作者单位： | 中国石化油田勘探事业部;;江苏省有色金属华东地质勘查局八一四队;;江苏省有色金属华东地质勘查局八一四队;;有色金属矿产地质调查中心; |
| |
| 摘 要： | 通过玛曲-北川MT勘探大剖面,揭示了沿线上地壳、下地壳、上地幔的空间展布与构造特征。认为上地壳盖层与基底之间存在一个自华北地块向龙门山方向的巨型推覆构造;上地壳,尤其是结晶基底的厚度制约了地块的稳定性;壳内低阻层起伏、莫霍面的隆坳与地块的稳定性相关。
|
| 关 键 词： | 大地电磁测深法 剖面勘探 二维反演 层圈结构 |
Maqu-Beichuan MT Profiling and Preliminary Investigation of Crustal Structure in Northwest Sichuan, China |
| |
| HUAN?Rui,LI?Ai-yong,ZHU?Chun-sheng and YANG?Sheng.Maqu-Beichuan MT Profiling and Preliminary Investigation of Crustal Structure in Northwest Sichuan, China[J].Northwestern Seismological Journal,2010,32(4):334-338. |
| |
| Authors: | HUAN?Rui LI?Ai-yong ZHU?Chun-sheng and YANG?Sheng |
| |
| Institution: | Oilfiled?Exploration?and?Development?DEPT;;Team814,East?China?Bureau?of?Noneferometal?Geological?Exploration;;Team814,East?China?Bureau?of?Noneferometal?Geological?Exploration;;China?Nonferrous?Metals?Resource?Geological?Survey; |
| |
| Abstract: | The Magnetotelluric exploration profile of Maqu-Beichuan shows the extent and structure characters of upper crust,lower crust and upper mantle along the sections.First,there exists a large nappe structure from north China block to Longmenshan tectonic belt between the overlying strata of upper crust and basement.Second,the thickness of upper crust,especially the one of crystalline basement,limits the stability of blocks.Third,the relief of low-resistivity layer in the crust and the swell or sag of Moho are close correlative to the stability of blocks. |
| |
| Keywords: | Magnetotelluric sounding Profile exploration 2Dinversion Structure of layer circles |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《西北地震学报》浏览原始摘要信息 |
| 点击此处可从《西北地震学报》下载免费的PDF全文 |
|
