海洋地质与第四纪地质2025，Vol.45Issue(1)：109-121,13.DOI:10.16562/j.cnki.0256-1492.2023070901
海洋沉积物中自生碳氟磷灰石成因研究进展
A review on genesis of authigenic carbonate fluorapatite in marine sediments
摘要
Abstract
Authigenic carbon fluorapatite(CFA)is a crucial phosphorus sink in marine sediments and is the primary phosphorus-bearing mineral in submarine phosphorites.Understanding the genesis of CFA is of great scientific significance for understanding the changes in marine productivity,phosphorus cycling,and global climate and environmental effects throughout geological history.We overviewed the material sources,formation environment,and precipitation mechanisms of CFA in marine sediments.The enrichment of phosphorus in porewater involves the microbial decomposition of organic matter,the adsorption and release of phosphate by ferric oxyhydroxides,and the storage and utilization of polyphosphates by large sulfide bacteria.Fluctuations in redox conditions exert a significant influence on these processes.The formation of calcium phosphate(CaP)precursor phase is an important pathway for CFA precipitation.Moreover,the interface coupled dissolution and precipitation(ICDP)mechanism of CaP on calcium carbonate surfaces reveals the alteration genesis of CFA from a microscopic perspective.Based on these findings,future research directions for investigating the genesis of authigenic CFA in marine sediments are also proposed.关键词
碳氟磷灰石/海洋自生矿物/成磷作用/磷循环Key words
carbonate fluoroapatite/marine authigenic minerals/phosphogenesis/phosphorus cycle分类
海洋科学引用本文复制引用
叶子靖,周怀阳,高航..海洋沉积物中自生碳氟磷灰石成因研究进展[J].海洋地质与第四纪地质,2025,45(1):109-121,13.基金项目
国家自然科学基金项目"南海深部计划重点项目"(91428207) （91428207）
