Southeast Asia Information Port (www.dnyxxg.com) – Reporters learned today (the 10th) from the China Geological Survey that the research vessel "Haiyang Dizhi VI" has successfully completed the second leg of its 15th deep-sea geological survey voyage, and several scientific achievements were officially released today.
The second leg of the 15th voyage of "Haiyang Dizhi VI" began on August 29th this year, lasting 95 days and covering a total distance of 12,673 nautical miles. It collected a large amount of valuable data and samples, including deep-sea environmental data, deep-sea seawater samples, seabed sediments, polymetallic nodules, and deep-sea biological samples. At the same time, new progress was also made in key technologies and equipment applications for deep-sea exploration.
Song Laiyong, technical head of the "Haiyang Dizhi VI" vessel from the Guangzhou Oceanographic Bureau of the China Geological Survey, stated: "For the first time in the deep waters of the Pacific Ocean, we used our self-developed 6,000-meter-class deep-sea remotely operated vehicle and domestically produced autonomous underwater vehicle to conduct high-precision tests and operations near the seabed, achieving excellent application results."
Song Laiyong told reporters that this data provides the most fundamental and crucial basis for our research on deep-sea geology, deep-sea environment, and deep-sea ecosystems.
During the scientific expedition carried out by the research vessel "Haiyang Dizhi VI," the first-ever electromagnetic profiling measurement of the Pacific abyss was also completed, obtaining high-quality electromagnetic observation data of the deep Pacific Ocean. Experts told reporters that this data can help us in future ocean drilling site selection.
This image is the electromagnetic profiling map of the Pacific abyss obtained this time. It's like performing a "CT scan" on the Earth, analyzing the natural electromagnetic field signals inside the Earth to detect the electrical characteristics of rocks deep underground, thereby inferring the stratigraphic structure, material composition, and even temperature state.
It is reported that the research vessel "Haiyang Dizhi VI" plans to sail to the Pacific Ocean again in the first half of 2026 to conduct more in-depth basic geological and environmental geological scientific investigations.
