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南海是我国最大的边缘海,自晚白垩纪以来经历了陆缘张裂和大陆裂解,发育了一个宽达700km洋壳的深海盆.南海北部陆缘与南沙地块构成一对共轭大陆边缘.由于地理位置等原因,北部陆缘研究进展较快,研究内容相对丰富和细致,南部南沙海区研究程度较低.随着各学科研究的开展,发现这样的一个现象:南海北部陆缘盆地较深,裂后期沉积厚度大,且以碎屑岩为主要油气
The South China Sea, the largest marginal sea in China, has undergone continental rifting and continental cleavage since the Late Cretaceous, and has developed a deep sea basin with a wide oceanic 700-km oceanic crust. The northern South China Sea continental margin and the Nansha block form a pair of conjugate continental margins Due to the geographical location and other reasons, the research on the continental margin in the north has progressed rapidly and the research content is relatively rich and meticulous, and the research in the southern Nansha sea area is relatively low.With the development of various disciplines, a phenomenon was found that the continental margin basins in the northern South China Sea Deep and late Cretaceous sedimentary thickness, and the clastic rock as the main oil and gas