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南海北部陆架是中国广阔大陆架的重要组成部分,在这里系统地开展大面积的海洋地质——地球物理调查工作较迟,但发展很快。遵照原地质部李四光部长的指示,于1970年冬首先在北部湾东部海区进行了综合海洋地质调查和区域性油气远景评价工作,并普查了涠西南构造带,为勘探提供了资料。随后遵照上级指示挥师东进,对雷州半岛以东、西沙群岛以北、东至汕头以南的广大海域开展了地震、磁法、重力、海底地形地貌和沉
The northern shelf of the South China Sea is an important part of the vast continental shelf in China. It is relatively late to systematically carry out a large-scale survey of marine geophysics and geophysics, but it has developed rapidly. Following the instructions of Minister Li Siguang, formerly the Department of Geology, in the winter of 1970, the first comprehensive marine geological survey and regional oil and gas prospecting were conducted in the eastern part of Beibu Gulf. The southwestern tectonic belt of Xuzhou was surveyed to provide information for exploration. Followed by the superior instructed the commander of the east, east of Leizhou Peninsula, north of the Xisha Islands, east of Shantou to the vast sea of seismic, magnetic, gravity, submarine topography and sediment