Xinhua News Agency, Qingdao, December 18 (Reporter Zhang Xudong) The reporter learned from the Institute of Oceanology, Chinese Academy of Sciences that my country’s new-generation ocean-going comprehensive scientific research ship "Science" is conducting scientific investigations in the Mariana Trench and has obtained volcanic rock samples and full water depth. Sea water samples, etc.
According to reports, the "Science" set sail from Qingdao on November 23 to carry out the shared voyage of the National Natural Science Foundation of China, mainly to conduct scientific investigations on the interaction of multi-circle layers in the western Pacific and the initiation mechanism of plate subduction.
"Since December, the sea conditions in the operating sea area have improved significantly, and scientific research has made significant progress." said Zhang Guoliang, chief scientist of the voyage and researcher of the Institute of Oceanology, Chinese Academy of Sciences.
It is understood that the scientific expedition team collected more than 200 kilograms of volcanic rock samples at a depth of 4,438 meters using a TV grab, the largest of which was nearly 100 kilograms.
In addition, the scientific expedition team collected full-water deep seawater samples from six stations in the waters near the Mariana Trench, filtering more than 10,000 liters of seawater.
Among them, the deepest station is located near the Challenger Abyss in the Mariana Trench. The scientific expedition team filters more than 700 liters of seawater at this station.
Researchers said that the seawater samples collected will be mainly used to three-dimensionally depict the hydrological cycle of the abyss, which has important scientific value for understanding the composition of the full-water deep seawater in the ocean hydrosphere, the sea-air interface and the fluid-solid interface geobiochemical process.
The voyage carried scientific expedition personnel from the Institute of Oceanology, Chinese Academy of Sciences, Peking University and other units. The survey involved hydrology, geology, geophysical observation and sampling, etc. The voyage is expected to last 50 days.