Ship returns after sulfide research
returned to China on Sunday after a voyage of more than 200 days to the southwest Indian Ocean. The ship docked at Zhoushan. The mission was to explore polymetallic sulfide in 30,000 square meters of seabed, under a contract between China and the International Seabed Authority, said Li Huaiming, a scientist involved in the project. Scientists used the Chinese unmanned submersible to conduct eight dives, reaching a maximum depth of 3,320 meters.