中国科学院南海海洋研究所《实验3号》考察船于1984年—1986年对南沙群岛海域进行了三个航次综合性多学科的调查研究,包括海洋地质、地貌、水文、气象、生物、海水光学和化学等学科,并将曾母暗沙列为专题研究。 曾母暗沙是我国领土的南端。对它的科学考察具有十分重要的意义。在考察过程中,应用了卫星和雷达进行定位,用各种测深仪和浅地层剖面仪探测地形、地貌、水深等。通过调查,发现曾母暗沙与原来海图标记有差异。它是伏卧于水下40—50m的珊瑚 The experimental vessel No. 3 of the South China Sea Institute of Oceanology conducted a comprehensive multidisciplinary investigation of three voyages in the Nansha Islands from 1984 to 1986, including marine geology, geomorphology, hydrology, meteorology, biology, seawater optics And chemistry and other disciplines, and Zeng Mu dark sand as a thematic study. Zeng Mu Sha is the southern end of our territory. Its scientific investigation is of great significance. During the course of the inspection, satellites and radars were used for positioning. Various types of sounder and shallow formation profiler were used to detect topography, landform, water depth and so on. Through the investigation, we found that there was a difference between Zengshasha and the original chart mark. It is covered in coral 40-50m underwater