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地质矿产部《海洋四号》调查船于1990年10月25日远航南极南大洋,参加中国第七次南极科学考察,已圆满完成任务,于5月3日回到广州,它标志着我国海洋地质调查工作进入新的发展阶段。 《海洋四号》调查船,在南极南大洋海区取得了地球物理剖面1.7万测线公里,做了地质站位43个,分别是原设计的166％和215％。在南极南设德兰群岛进行了地球物理调查,完成了339个地质点。返回途中还在南太平洋及其边缘海域进行了海洋地球物理综合考察,特别是在号称世界第二海沟的汤加海沟进行的地质和地形调查,是迄今中国人
The No. 4 Oceanographic Survey Vessel of the Ministry of Geology and Mineral Resources, which voyageed the Antarctic Southern Ocean on October 25, 1990, took part in the 7th Antarctic Scientific Expedition to China and has successfully completed its mission and returned to Guangzhou on May 3, marking the milestone of China’s ocean Geological survey work has entered a new stage of development. The “Ocean No. 4” survey ship made 17,000 km of geophysical profiles in the Antarctic south ocean sea area and made 43 geological stations, which are 166% and 215% respectively of the original design. A Geophysical Survey was conducted in the Shetland Islands in Antarctica, completing 339 geological points. On the way back, they also conducted a comprehensive marine geophysical survey in the waters of the South Pacific Ocean and its margins. In particular, the geological and topographical survey conducted in the Tonga trench, known as the second trench in the world, is by far the Chinese