Relation between Exhumation of HP-UHP Metamorphic Rocks and Deformation in the Northern Margin of the Yangtze Block
详细信息
- 责任者：Li Sanzhong (Key Lab. of Submarine Geosciences and Exploration Techniques ; Ministry of Education ; Qingdao 266100 ; China) ; Zhang Guowei
- 刊名：Acta Petrologica Sinica
- 出版年：2010
- 卷期：26(12)
- 关键词：构造变形 ; tectonic deformation ; 超高压变质岩 ; ultrahigh pressure metamorphic rocks ; 大别山 ; Dabie Mountains
- 页码：p.3549-3562
- 图表：5 illus., 91 refs.
- 分类号：0300
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
The Dabie Orogen and its "foreland" result from Triassic collision of the North China Continental Block to the Yangtze Block. This research reveals that the "foreland" is in fact one fold-thrust fold belt related to the evolution of the Jiuling Basement Uplift Zone in the Central of the Yangtze Block. Combined with magnetotelluric sounding data,wide-angle reflection,seismic refraction, P-wave tomography, seismic reflection imaging of the MOHO surface, it reveals that the crustal architecture has difference between the upper and the lower crusts, like fish-bone shape based on rock properties, velocity, MOHO offset and deformation. At last, the tectonic evolution and setting and deformation regimes are discussed and analyzed in this paper.
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