华东地质2026，Vol.47Issue(2)：221-237,17.DOI:10.16788/j.hddz.32-1865/P.2024.11.005
中国东南沿海现代主要沉积体系重矿物组成特征与砂矿成矿潜力探讨
Characteristics of heavy mineral composition in the modern sedimentary sys-tems and the potential for placer mineralization along southeast coast of China
摘要
Abstract
Along the southeast coast of China,aeolian dunes,the"old red sand"and tidal ridges consti-tute sandy sedimentary systems that serve as potential sources for critical mineral resources such as zircon and monazite.This paper,building upon the summary of previous studies on the geological background of the South China Block and the division of metallogenic belts for coastal placers,provides an overview of the content and combination characteristics of detrital heavy minerals in major sandy sediments from rivers,coastal areas,and the East China continental shelf.It endeavors to comprehend the distribution and enrichment factors of detrital heavy minerals within different sedimentary systems from the perspective of a macro-source-sink system that spans rivers,coasts and shelves.Overall,the types and distributions of coastal placers along the southeast coast are pri-marily influenced by a combination of bedrock types,weathering conditions,types and association characteristics of ore deposits in metallogenic belt,sedimentary-geomorphic features,hydrodynamic conditions,and sea-level changes.Future research should concentrate on sedimentary systems such as coastal aeolian dunes,the"old red sand",shelf tidal ridges,while integrating chronological,mineralogical,geophysical exploration,and artificial intelligence methods.Guided by the concept of sediment source-sink processes,the establishment of new regional metallogenic and exploring models for placer mineralization along the southeastern coast is imperative.关键词
东南沿海/砂质沉积/重矿物/滨海砂矿Key words
Southeast coast of China/sandy deposits/heavy minerals/coastal placers分类
天文与地球科学引用本文复制引用
朱心怡,黄湘通,杨守业,赵希林,靳国栋..中国东南沿海现代主要沉积体系重矿物组成特征与砂矿成矿潜力探讨[J].华东地质,2026,47(2):221-237,17.基金项目
中国地质调查局"武夷成矿带区域地质调查(编号:DD20242972)"和国家自然科学基金"碎屑锆石℃U-Pb年代学定量解析东海陆架沙质沉积物源与源汇过程(编号:42176054)"项目联合资助. （编号:DD20242972）
