China breaks deep sea records exploring the deepest part of the ocean

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A Chinese sea expedition achieved several national and international firsts as they explored deep sea trenches in the west Pacific Ocean, the Chinese Academy of Sciences (CAS) said Thursday.

The 68-day expedition made China the first ever to obtain artificial seismic profile data with a domestic ocean bottom seismograph at 10,000-meters-deep or lower. The data was taken from a section of the deepest known part of ocean called the "Challenger Deep" in the Mariana Trench , the CAS said in a statement.

The team returned to Sanya in south China's Hainan Province Thursday.

Tan Suo Yi Hao, the vessel China’s expedition takes. /Chinanews Photo

Haiyi, China's domestic underwater glider, reached a record depth of 6,329 meters in the Mariana Trench.

During the trip, the submersible Haidou dived to over 10,000 meters five times. It reached the sea bottom at a depth of 10,886 meters, the first time China has conducted unmanned navigation and video transmission at over 10,000 meters.

The expedition team also sampled snailfish in the Yap Trench at a depth of 7,884 meters, the maximum depth where China has sampled fish.

(Source: Xinhua)

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