| 华南前寒武系基底变质杂岩高温高压下的波速 特征及地壳结构 |
| |
| 引用本文： | 谢窦克,周宇章,张开毕,邢光福.华南前寒武系基底变质杂岩高温高压下的波速 特征及地壳结构[J].地球物理学进展,2006,21(1):107-117. |
| |
| 作者姓名： | 谢窦克 周宇章 张开毕 邢光福 |
| |
| 作者单位： | 1. 南京地质矿产研究所,南京,210016
2. 福建省地质调查院,福州,350003 |
| |
| 基金项目： | 原地矿部科技司重点科技项目(9501109)资助 |
| |
| 摘 要： | 目前,华南地区通过数条地学大断面在内的地球物理探测工作,已经获得了大量深部地壳结构的信息,然而对其基底岩石的物理性质研究程度还不够.为此,我们选择华南地区扬子克拉通和华夏陆块具代表性的不同深度地壳岩石,对其进行高温高压弹性波速特征研究.结果表明两大构造单元基底的岩石波速差异较大,从而认为两者物质组成迥异,地壳结构完全不同.进而初步建立了扬子克拉通与华夏陆块各自的地壳结构模型,认为扬子克拉通具有多层结构的结晶基底,华夏陆块具三层结构但没有结晶基底,这一模型重新构建了华南的地壳结构,对华南深部地质研究和构造格局演化研究具有重要意义.
|
| 关 键 词： | 变质杂岩 弹性波速特征 高温 高压 前寒武 华南 |
| 文章编号： | 1004-2903（2006）01-0107-11 |
| 收稿时间： | 2005-01-10 |
| 修稿时间： | 2005-03-20 |
The wave characteristic of Precambrian base metacomplex in high-temperature and high-pressure and the crust structure of South China |
| |
| XIE Dou-ke,ZHOU Yu-zhang,ZHANG Kai-bi,XING Guang-fu.The wave characteristic of Precambrian base metacomplex in high-temperature and high-pressure and the crust structure of South China[J].Progress in Geophysics,2006,21(1):107-117. |
| |
| Authors: | XIE Dou-ke ZHOU Yu-zhang ZHANG Kai-bi XING Guang-fu |
| |
| Institution: | 1. Nanjing Institute of Geology and Mineral Resources, Nanjing 210016,China; 2. Fujian Institute of Geological Survey, Fuzhou 350003, China |
| |
| Abstract: | At present,Geophysical detection including the several great geological sections in South China has gained a large number of deep information about earth's crust structure,but it is still inadequate to the physical property research of the base rock.We select the representative rocks from different depth in crust in Yangze Craton and Cathaysia,and run the elastic wave characteristic research in high-pressure and high-temperature.As a result,the wave velocity of the two structural units are different obviously,so we think there is great difference in the constituted materials,and the crust structures are entirely different. And then,we initially built their crust structures respectively,thinking there is multiple layers structure in the Yangze Craton crystal base and three layers in the Cathaysis crust structure but no crystal base.This model reconstructs the crust structure of South China,and has the important meaning to the deep geological research and structure evolvement in South China. |
| |
| Keywords: | metacomplex elastic wave characteristic high-temperature high-pressure Precambrian South China |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地球物理学进展》浏览原始摘要信息 |
| 点击此处可从《地球物理学进展》下载免费的PDF全文 |
|
