Deep-sea research
China has carried out deep-sea research with two submersibles to explore a cold seep in the South China Sea, according to a statement released by the China Geological Survey’s Guangzhou branch on Wednesday.
It is the first time two domestically-made deep-sea submersibles, Haima (Seahorse) and Shenhai Yongshi (Deep Sea Warrior), have been used in a single scientific expedition.
The expedition in the Haima Cold Seep area in the Pearl River mouth basin in the South China Sea was carried out between April 28 and 30 by the research vessel Hai Yang Liu Hao (Ocean Six) and Tan Suo Yi Hao (Discovery One), which carry Haima and Shenhai Yongshi respectively, the statement said.
A cold seep is an area of the ocean floor where hydrogen sulfide, methane and other hydrocarbon-rich fluid seepage occurs.
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