岩矿测试2024，Vol.43Issue(4)：641-658,18.DOI:10.15898/j.ykcs.202402260020
透射电子显微镜技术在稀土矿床研究中的应用进展
Application Progress on Transmission Electron Microscopy in the Research of Rare Earth Deposits
摘要
Abstract
Transmission electron microscopy(TEM),having a remarkably high spatial resolution and diversified analysis capability,can be used to obtain very comprehensive composition,structure,and crystal chemistry of the samples under submicron-nanometer scale and is a powerful tool for studying the microscopic components and structure of geological samples.It has been applied increasingly in earth science,including mineral deposits.In this paper,TEM is used as an example of studying rare earth deposits.Firstly,we briefly introduce the TEM's fundamental structure,working principles,function,and sample preparation method.Then,we review the application of TEM in the study of rare earth element(REE)deposits from carbonatite-,pegmatite-,granitoid weathering crust-,and phosphorite-to deep-sea sediment types.The work involves the bastnaesite's growth mechanism of crystallization of particle attachment,the apatite and zircon's dissolution,migration,and re-precipitation during hydrothermal metasomatism,the microstructure of primary REEs and the mineral types of weathering products in the granitoid weathering crust deposits,the apatite's occurrence state and substitution mechanism of trace REEs at the nano to atom scale.Finally,the cautions and application prospects for the TEM in studying geology in the future are summarized.关键词
透射电镜/稀土矿床/稀土矿物/纳米矿物Key words
transmission electron microscopy/rare earth deposit/rare earth minerals/nano minerals分类
天文与地球科学引用本文复制引用
徐亦桐,宋文磊,代静静,薛姗娜,陈倩,杨金昆,许丹妮..透射电子显微镜技术在稀土矿床研究中的应用进展[J].岩矿测试,2024,43(4):641-658,18.基金项目
国家自然科学基金项目(42273070) （42273070）
