海洋地质与第四纪地质2024，Vol.44Issue(3)：173-182,10.DOI:10.16562/j.cnki.0256-1492.2023102002
深海多金属结核中战略性关键金属的分布及其控制因素
Distribution of strategic key metals in deep-sea polymetallic nodules and their controlling factors
摘要
Abstract
Deep-sea polymetallic nodules are widely recognized as potential resources in future for strongly enriching in many strategic key metals for high-technology applications and economic prosperity.By summarizing previous studies,the contents,occurrence,enrichment mechanism,migration,and evolution of Co,Cu,Li,Mn,Mo,Ni,and Tl distributed mainly in manganese oxides,and REY,Te,Ti distributed mainly in iron oxyhydroxides in different types and settings of polymetallic nodules were analyzed.The surface sorption drove these metals to enrich into polymetallic nodules first,in which Mo,Ni,REY,and Ti could achieve high enrichment in this stage alone.Subsequently,the oxidation of Ce,Co,and Tl,and the structural incorporation of Co,Cu,Li,Ni,and Te continued to be enriched in these strategic metals in polymetallic nodules.When the polymetallic nodules were buried by abyssal sediments,and the surrounding environment changed from oxic conditions to suboxic conditions,the large-scale mineralogical transformation could lead to the enrichment of Co,but strongly depleted in Ni,REY,Mo,and Li compared to surface nodules.When buried polymetallic nodules were finally in reduced conditions,the mineral crystal lattice of these nodules would dissolve and collapse completely,perhaps only some iron oxyhydroxides component of the former nodule could remain.Future sub-micron and in-situ high-precision experimental research work will improve our deep understanding of the distribution,enrichment history,and controlling factors of these strategic key metals in nodules,especially low-content metals of Te and Tl,and help the exploration and utilization of deep-sea polymetallic nodules.关键词
多金属结核/战略性关键金属/分布/控制因素Key words
polymetallic nodules/strategic key metals/distribution/constraint分类
海洋科学引用本文复制引用
黄威,孙军,姜学钧,崔汝勇,路晶芳,侯方辉,李攀峰,宋维宇,徐翠玲,刘李伟..深海多金属结核中战略性关键金属的分布及其控制因素[J].海洋地质与第四纪地质,2024,44(3):173-182,10.基金项目
崂山实验室科技创新项目(LSKJ202203602) （LSKJ202203602）
国家重点研发计划课题(2023YFC2811104) （2023YFC2811104）
中国地质调查局地质调查项目(DD20221720,DD20230647) （DD20221720,DD20230647）
