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南海是西太平洋最大的边缘海之一,其演化对于认识大陆边缘的演化有着重要的意义。特提斯构造演化是南海构造演化史中十分重要的一环,其演化发展及对后来的大陆边缘构造和探寻中生代油气资源前景有着十分重要的意义;而且对于进一步揭示特提斯构造域和濒太平洋构造域的时空演化有着深远的意义。作者基于对深部地壳结构的研究,对南海北部陆坡作了3条重力模型,从重力剖面上探讨特提斯构造在南海北部陆坡的痕迹。
The South China Sea is one of the largest marginal seas in the western Pacific Ocean. Its evolution is of great significance for understanding the evolution of the continental margin. Tethys tectonic evolution is a very important part in the evolution of the South China Sea tectonic evolution, and its evolution and development are of great significance to the later continental margin tectonics and prospect of the Mesozoic hydrocarbon resources. In addition, it is of great significance to further reveal the Tethyan tectonic domain and the near The temporal and spatial evolution of Pacific tectonics has far-reaching significance. Based on the study of the deep crustal structure, the author made three gravity models on the northern slope of the South China Sea, and explored the Tethys traces on the northern slope of the South China Sea from the gravity profile.