China views the sea as more than just a geographical area and broader than a traditional military theater isolated from the economy and science. In the growing Chinese vision, the sea represents a scientific laboratory for discovering the history of the Earth and climate, an arena for advanced manufacturing and testing autonomous systems, and a strategic supply line linked to trade, energy, security, and external influence.
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The success of the Chinese drilling vessel "Meng Xiang" in completing its first experimental scientific drilling mission in the South China Sea represents a step that goes beyond the symbolic value of a maritime achievement.
Knowledge as infrastructure
According to the China Daily, the expedition worked for 30 days in waters 4,100 meters deep, carrying out drilling and sampling operations at two locations, achieving a maximum operational depth of 4,929.17 meters, and its penetration reached 864.77 meters below the seabed.
The expedition team also managed to extract a 4.27-meter-long basalt core using locally developed equipment, making China the third country - after the United States and Japan - to obtain samples of solid rock in a deep ocean basin using a drilling vessel.
The importance of the achievement does not stop at having an advanced drilling platform, but extends to what these samples allow in terms of re-reading the history of the formation of the South China Sea and the formation of its oceanic crust.
The newspaper quotes the mission's chief scientist, Sun Jun, as saying that the basalt samples could help test the "leaping of the reef" hypothesis, a process in which the Earth's crust breaks off and moves to another location, leading to the formation of a new ocean basin.
During the drilling operations, the expedition team discovered successive sedimentary layers and sediments with high organic content at great depths, opening the way to understanding the relationship between ancient natural processes, the carbon cycle, and climate regulation, and the impact of these processes on the survival of organisms in the deep marine environment.
In this sense, scientific activity in deep drilling is transformed into an infrastructure for marine knowledge. Mastering the drilling process itself, obtaining rock cores, analyzing samples, storing them according to international standards, and managing risks in highly complex wells are all elements that build a national base of expertise in ocean exploration.
The mission enhanced its working standards by operating two remotely piloted vehicles to conduct intensive and prolonged collaborative operations for more than 358 hours of underwater work at depths of nearly 4,000 meters, reflecting a practical overlap between earth sciences, marine engineering, robotics and sensing in a very challenging environment.
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