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Chinese submersible Jiaolong completes 20th dive in Mariana Trench

Xinhua | Updated: 2017-06-02 08:47

Chinese submersible Jiaolong completes 20th dive in Mariana Trench

China's manned submersible "Jiaolong" conducts its 20th dive in the Mariana Trench on June 1, 2017. [Photo/Xinhua]


ON BOARD SHIP XIANGYANGHONG 09 -- China's manned submersible "Jiaolong" Thursday conducted its 20th dive in the Mariana Trench, the world's deepest-known trench, since 2012.

The dive began at 4:43 pm local time, with three crew onboard working underwater for half an hour.

During the mission, the crew studied deep-sea biotic communities and distribution of species in the trench. They also brought back sea water samples.

Observations and sampling were carried out along the sedimentary area and rock-fracture zone of the trench.

Jiaolong has completed the highest number of dives in the trench by a manned submersible, and has reached a depth over 6,500 meters on 12 dives.

This mission is the third and final stage of China's 38th oceanic scientific expedition.

"It provides us with the first-hand data and samples for the country's research in deep-sea science," said Wu Changbin, commander of the expedition's third stage.

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