| 青藏地区面波高分辨率层析成像 |
| |
| 引用本文： | 瞿辰,朱介寿,蔡学林.青藏地区面波高分辨率层析成像[J].物探与化探,2003,27(1):73-78. |
| |
| 作者姓名： | 瞿辰 朱介寿 蔡学林 |
| |
| 作者单位： | 成都理工大学,四川,成都,610059 |
| |
| 摘 要： | 通过搜集198～2001年间亚洲、部分欧洲及西太平洋地区台网44个数字地震台记录的187个地震事件,约1 500条三分量长周期数字化地震记录.从中挑选出390条很好地覆盖了青藏高原及邻区大圆传播路径,采用面波频散反演方法,对70°E～110°E,10°S～45°N范围地壳上地幔不同深度(8～430 km)进行1°×1°高分辨率三维S波速度成像.根据成像结果对青藏高原的地壳厚度进行了推断,讨论了青藏高原的构造演化及其动力学特征.
|
| 关 键 词： | 面波 频散 青藏高原 高分辨率面波三维层析成像 岩石圈与软流圈结构 |
| 文章编号： | 1000-8918(2003)01-0073-06 |
| 收稿时间： | 2002-07-30 |
SURFACE WAVE TOMOGRAPHY OF THE CRUST AND THE UPPER MANTLE IN TIBETAN PLATEAU |
| |
| Institution: | Chengdu University of Technology, Chengdu 610059, China |
| |
| Abstract: | In the present study, 3-D high resolution S wave velocity tomography by 1°×1° cells have been performed within the limits of crust and upper mantle from by using surface wave dispersion inversions,through collecting 1500 three components long-period digital seismic records from 187 representative events recorded by 44 seismic network stations which over Asia, part Europe and the west Pacific Ocean areas from 1986 to 2001, picking out 390 accurate surface wave dispersion cures which great circle path nearly cover Tibetan plateau. According to the tomography rsults about S wave velocity, crust thickness of Tibetan plateau has been detected. This paper discusses the structure evolution and dynamics feature of Tibetan plateau. |
| |
| Keywords: | surface wave dispersion Tibetan plateau tomography the structure of lithosphere and rheosphere |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《物探与化探》浏览原始摘要信息 |
| 点击此处可从《物探与化探》下载免费的PDF全文 |
|
