|
|||||
|
|
| 青藏高原莫霍面的研究进展 | |
| 引用本文： | 李秋生,彭苏萍,高锐.青藏高原莫霍面的研究进展[J].地质论评,2004,50(6):598-612,i004. |
| 作者姓名： | 李秋生 彭苏萍 高锐 |
| 作者单位： | 1. 中国矿业大学,北京校区,北京,100083;中国地质科学院地质研究所,北京,100037 2. 中国矿业大学,北京校区,北京,100083 3. 中国地质科学院地质研究所,北京,100037 |
| 基金项目： | 国家自然科学基金重点项目 (编号 40 3 3 40 3 5 )的成果 |
| 摘 要： | 本文首先简要回顾了莫霍面的发现，介绍其基本性质，然后对青藏高原莫霍面研究的重要进展进行了评述。在区域尺度上，被动源地震(天然地震)方法研究结果勾勒出青藏高原地壳及岩石圈底部的深部构造轮廓。然而受分辨率的限制，天然地震结果给出的地壳及上地幔结构的细节不足。近年来已经用分辨率达到几千米甚至百米级的主动源地震(包括宽角反射与折射地震和深反射地震)方法，揭示出青藏高原地壳及上地幔的精细结构。本文对近30年来深地震探测获得的青藏高原各个地块的莫霍面深度、壳幔结构和上地幔盖层速度等基本数据进行了较系统的分析，并对青藏高原莫霍面研究存在的有关问题进行了讨论。 |
| 关 键 词： | 莫霍面 青藏高原 上地幔 地壳 壳幔结构 天然地震 深反射地震 地块 基本数据 尺度 |
A Review on the Moho Discontinuity beneath the Tibetan Plateau |
|
| LI Qiusheng,PENG Suping ,GAO Rui China University of Mining Technology.A Review on the Moho Discontinuity beneath the Tibetan Plateau[J].Geological Review,2004,50(6):598-612,i004. | |
| Authors: | LI Qiusheng PENG Suping GAO Rui China University of Mining Technology |
| Abstract: | After a summary review of the Moho discovery and introduction of its elementary nature, this paper focus on the important advancement on Moho studies in the Tibet plateau. In the regional scale, passive source seismic (natural earthquake) research achievements sketch the deep tectonic background reached to the basement of the lithosphere. However, due to the limitation of resolution of passive source methods, the results (structure of the crust and upper mantle) generally lack of enough details. In recent decades, with the use of active source seismic (include wide angle reflection and refraction seismic profiling, near vertical reflection seismic profiling) with high resolution of several kilometer even hundreds meter, the fine structure of the crust and upper mantle beneath the Tibetan Plateau has been revealed. This paper make a systematic analysis on the basic data of the Moho depth, crust and uppermost mantle structure as well as the velocity of the uppermost mantle in the recent 30 years and have a discussion on several problems including the Moho research of the Tibetan Plateau. |
| Keywords: | Qinghai-Xizang (Tibetan ) plateau Moho Discontinuity Wide angle reflection/refraction seismic profile deep seismic reflection profile |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《地质论评》浏览原始摘要信息 | |
| 点击此处可从《地质论评》下载免费的PDF全文 | |