摘要
On the basis of the summary of basic characteristics of propagation, the dynamic model of the tectonic evolution in the South-western Subbasin (SWSB), South China Sea (SCS), has been established through high resolution multi-beam swatch bathymetry and multi-channel seismic profiles, combined with magnetic anomaly analysis. Spreading propagates from NE to SW and shows a transition from steady seafloor spreading, to initial seafloor spreading, and to continental rifting in the southwest end. The spreading in SWSB (SCS) is tectonic dominated, with a series of phenomena of inhomogeneous tectonics and sedimentation.
On the basis of the summary of basic characteristics of propagation, the dynamic model of the tectonic evolution in the South- western Subbasin （SWSB）, South China Sea （SCS）, has been established through high resolution multi-beam swatch bathymetry and multi-channel seismic profiles, combined with magnetic anomaly analysis. Spreading propagates from NE to SW and shows a transition from steady seafloor spreading, to initial seafloor spreading, and to continental rifting in the southwest end. The spread- ing in SWSB （SCS） is tectonic dominated, with a series of phenomena of inhomogeneous tectonics and sedimentation.
基金
supported by the National Natural Science Foundation of China (91028006)
the National Basic Research Program of China(2007CB411700)
关键词
西南地区
海底扩张
南海海盆
中国南海
传播
构造演化
动态模型
地震剖面
Southwestern Subbasin, South China Sea, propagation of seafloor spreading, morphotectonics, tectonic divisions, dynamicmechanism
