Early Mesozoic Intra-Plate Tectonic Features of South China and Its Response to Collision with Event of Neighboring Areas
详细信息
- 责任者：Luo Hao (School of Earth Sciences and Engineering ; Nanjing University ; Nanjing 210093 ; China) ; Chen Guohua
- 刊名：Journal of Stratigraphy
- 出版年：2013
- 卷期：37(2)
- 关键词：沉积序列 ; sedimentary sequence ; 板内构造 ; intraplate tectonics ; 岩浆作用 ; igneous processes ; 构造变形 ; tectonic deformation ; 华南地区 ; South China
- 页码：p.193-205
- 图表：illus., 83 refs.
- 分类号：0300
- issnNo：ISSN0253-4959
- isbnNo：CN32-1187/P
摘要
The Late Paleozoic-Early Mesozoic stratigraphic sequences and rock assemblages, syntectonic S-type granitoids and patterns of structural deformation were analyzed in this paper. Results suggest that the ophiolite in northeastern Jiangxi Province was formed in the Neoproterozoic, not in the Indosinian period as previously suggested. Sedimentological analysis suggests that a SE-dipping littoral-neritic framework was developed during the late Paleozoic-early Mesozoic, which is characterized by radiolarian-bearing carbonate rocks, coal-bearing sandstones and neritic facies biomes, suggesting that these areas were not in a deep-sea environment. The geodynamic settings of the different parts of the South China Block during the early Mesozoic are discussed. An accretion-collision-type orogeny can be excluded from studied area; instead, intra-plate tectono-magmatism with little input of mantle components, as a response to collision with neighboring plates, can explain the early Mesozoic tectonic history of South China.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |