来源：人民日报 原标题： " 海洋地质六号 " 科考船记录深海环境变迁 在海底捡 " 特产 " 给地球做 CT （瞰前沿 · 大国重器） 图①：科考队员从箱式取样器中取出多金属结核。图②："海洋地质六号"科考船。图③：海底摄像系统 实现回收。 让我们一起登上这艘船，看看太平洋几千米深处的独特风景。 图④：岩石圈—软流圈电阻率变化图。图⑤：太平洋深渊电磁剖面测量图。以上图片均为中国地质调查 局广州海洋地质调查局提供 谈论深海时，你脑海中浮现的是什么？是幽暗无光的深渊，还是神秘未知的生物？ 对于自然资源部中国地质调查局广州海洋地质调查局"海洋地质六号"科考船来说，深海更像是一座巨大 的、待解读的"地质档案馆"。2025年12月1日，这艘科考船在历时95天、航行12673海里后，带着太平洋 深处的秘密，顺利返航靠泊广州南沙科考码头。此次科考取得多项重要科学成果，并正式对外发布。 这次出远门，科学家们带回了令人惊叹的"特产"——沉睡海底3000万年的多金属结核，还"顺便"给地球 深部做了一次"CT扫描"。 海底 " 黑土豆 " 记录 3000 万年深海环境变迁 在这次航行中，最引人注目的首先是"探险队员"的升级。以往 ...

Group 1 - The core achievement of the mission was the successful launch of 9 satellites, including the UAE 813 satellite and the Jixing Gaofen 07B01 satellite, using the Lijian-1 rocket [3] - The Lijian-1 rocket has entered a phase of mass production and high-density launches, facilitated by the establishment of dedicated launch facilities [3] - The rocket's vertical launch device can execute a new launch within 10 days after a previous launch, indicating improved operational efficiency [5][8] Group 2 - The "Xuelong" and "Xuelong 2" vessels are currently engaged in unloading operations near Zhongshan Station, facing challenges due to thick sea ice [9][11] - The "Xuelong" vessel successfully navigated through difficult ice conditions, while the "Xuelong 2" vessel also faced significant obstacles but managed to reach the unloading point [13] - The "Haiyang Dizhi 6" research vessel has published new scientific findings, including deep-sea environmental data and the discovery of a polymetallic nodule resource-rich area, contributing to research on deep-sea geology and ecosystems [19]

Core Viewpoint - The "Ocean Geological No. 6" research vessel has successfully completed its 15th deep-sea geological survey mission, with multiple scientific achievements officially released [1]. Group 1: Mission Overview - The 15th mission's second phase began on August 29 this year, lasting 95 days and covering a total distance of 12,673 nautical miles [3]. - The mission collected valuable data and samples, including deep-sea marine environmental 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]. - A significant achievement was the first electromagnetic profile measurement in the Pacific abyss, which provides high-quality electromagnetic observation data for future ocean drilling site selection [8]. Group 3: Future Plans - The "Ocean 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].

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]

Core Insights - The "Marine Geological No. 6" research vessel has successfully completed its 15th deep-sea geological survey, with significant scientific results released, including unique underwater footage and important data on polymetallic nodules found at depths of 4,000 to 6,500 meters [1][2] Group 1: Deep-Sea Resources - Polymetallic nodules are identified as a widely distributed and resource-rich deep-sea mineral resource, crucial for ensuring resource security in China [3] - Each nodule serves as a historical record of over 30 million years of deep-sea environmental changes, providing insights into the marine environment and mineralization processes [3] Group 2: Deep-Sea Ecosystems - Deep-water corals, which thrive in lightless cold-water environments, are essential for providing habitats for various marine life and serve as indicators for studying ancient marine climates and ecological conditions [4] - Deep-sea sponges contribute to unique deep-sea ecosystems and hold potential for research in marine compounds and biomedicine [4][6] Group 3: Electromagnetic Profiling - The survey included the first electromagnetic profiling of the Pacific deep trench, yielding high-quality data that can assist in future ocean drilling site selection [8][12] - The electromagnetic profile spans over 100 kilometers and reveals the electrical characteristics of underground rocks, aiding in understanding the geological structure and material composition [10][12] Group 4: Future Research and Development - The data obtained will support further geological investigations and the development of domestically produced deep-sea exploration equipment [12] - Plans are underway for a 10-year action plan for the "Dream" ocean drilling vessel, focusing on exploratory drilling tasks in the South China Sea to promote significant original research outcomes [13]