3D Lithospheric Structure of oft-com:office:smarttags" />South China
详细信息
- 责任者：Yuan Xuecheng (Development and Research Center ; China Geological Survey ; Beijing 100037 ; China) ; Hua Jiuru
- 刊名：Geology in China
- 出版年：2011
- 卷期：38(1)
- 关键词：岩石圈 ; lithosphere ; 华南地区 ; South China
- 页码：p.1-19
- 图表：23 illus., 24 refs.
- 分类号：0400
- issnNo：ISSN1000-3657
- isbnNo：CN11-1167/P
摘要
Starting with 6 P wave tomography profiles across the South China block, the authors approached 3D structure of the South China lithosphere. The South China block can be divided into three parts bounded by Qin-Hang fault zone and Chuan-Xiang-Gui rift. To the southeast of Qin-Hang fault zone there is Cathaysia lithosphere which is a part of the SE Asia-West Pacific low velocity lithosphere, formed by intrusive uplifting of ashenospheric materials. To the west of Chuan-Xiang-Gui rift is the upper Yangtze lithosphere, which is hot near the surface but has a high velocity root at depth.On the west part of upper Yangtze block, Paleozoic mantle plume in the Panxi area formed a magma chamber at the crust-mantle transformed zone, resulting in basalt eruption in vast areas.
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