“海洋地质六号”科考船第15航次任务成果发布

Core Insights - The "Marine Geological No. 6" research vessel has successfully completed the second phase of its 15th voyage, with multiple scientific achievements announced on December 10 [1] Group 1: Mission Overview - The second phase of the 15th voyage began on August 29 and lasted for 95 days, covering a total distance of 12,673 nautical miles [3] - The mission collected valuable data and samples, including deep-sea marine environment data, seawater samples, seabed sediments, polymetallic nodules, and deep-sea biological samples [3] Group 2: Technological Advancements - The mission marked the first use of domestically developed 6,000-meter deep-sea remotely operated vehicles and autonomous underwater robots in the Pacific deep-water area, achieving excellent application results [5] - Significant progress was made in the application of key technologies and equipment for deep-sea exploration [3] Group 3: Resource Discovery - A new resource-rich area of polymetallic nodules was discovered during the seabed mineral geological survey, expanding the resource space for seabed metal minerals [5] - Polymetallic nodules are primarily found at depths of 4,000 to 6,500 meters in deep-sea basins, with diameters ranging from 3 to 10 centimeters, composed mainly of iron-manganese oxides and hydroxides, and rich in key metal elements such as cobalt, nickel, copper, and manganese [7] Group 4: Future Plans - The "Marine Geological No. 6" research vessel is scheduled to return to the Pacific in the first half of 2026 for more in-depth basic geological and environmental geological scientific investigations [7]