China retrieves polymetallic sulphide samples from Indian

Chinese scientists have successfully retrieved samples from the seabed of China's polymetallic sulphide exploration contract area in southwest Indian Ocean.
Scientists onboard the State Oceanic Administration (SOA) research vessel Dayang Yihao (Ocean No 1) conducted three drillings this week using a remote control drill machine.
The global voyage, which is expected to last 180 days and cover 19,000 nautical miles, will take the vessel across the Indian Ocean.
Firming up its foothold in India's backyard, China has gained approval in 2012 to explore a 10,000 sq km polymetallic sulphide ore deposit in an international seabed region of the southwest Indian Ocean.

The 15 year approval was secured by China from the International Seabed Authority.
China also has obtained exclusive rights to prospect in a 75,000-square-km polymetallicnodule ore deposit in the east Pacific Ocean in 2001.

The study of the samples will help reveal the pattern of sulfide distribution, explain the origin of the carbonates, and make technological preparation for seabed sulphide exploration, Tao Chunhui, chief scientist for maritime exploration with Dayang Yihao ship.
Dayang Yihao departed from China's Hainan Province in December last year on the country's 30th oceanic exploration mission.
A total of 339 people are on board, including 254 scientists and engineers.