A comparison on tectonic evolution characteristics of ridge propagation between the Gulf of Aden and the Southwestern Sub-basin, South China Sea

作者：Zhang Jie^*; Li Jia Biao; Li Xi Bing; Wu Zhen Li

来源：Chinese Journal of Geophysics, 2011, 54(12): 3079-3088.

DOI：10.3969/j.issn.0001-5733.2011.12.009

• Propagating rifting and spreading
• Global distribution
• Gulf of Aden
• Southwestern Sub-basin

In this paper, we summarized the global spatial distribution of ridges and the sea basins which are formed by propagating rifting and spreading, and also gave a comparison between the Gulf of Aden and the Southwestern Sub-basin. Through the comparison of the origin and the characteristics of the spreading center, volcanic activities, magnetic anomalies and so on, we proposed a new view of the tectonic evolution of the Southwestern Sub-basin, and we also found new evidence for the tectonic evolution of the South China Sea. The Southwestern Sub-basin was formed by propagating rift and spreading at the same period with the Eastern Sub-basin. Propagating spreading and its orientation are possibly controlled by mushroom-shaped mantle plume, the Indo-Sinian or Hainan mantle plumes. We can not only take one evolution model into consideration when we discuss the formation of the South China Sea. On considering the seafloor spreading model, mantle plume interaction should also be put into it.

• 出版日期2011-12
• 单位国家海洋局第二海洋研究所