中国地质调查2025，Vol.12Issue(3)：45-56,12.DOI:10.19388/j.zgdzdc.2025.120
南岭科学深钻NLSD-2红外光谱及XRF元素特征
Infrared spectroscopy and XRF elemental characterization of Nanling scientific deep drilling NLSD-2
摘要
Abstract
Nanling scientific deep drilling NLSD-2 is one of the key projects for deep resource exploration in China,which has great significance for understanding the deep geological characteristics and metallogenic regular-ity of Pangushan tungsten deposit in Nanling.The infrared spectroscopy(400～2 500 nm),XRF elemental scan-ning and electron microprobe techniques were systematically integrated for the first time in this research to reveal the distribution of deep mineral assemblages,element enrichment characteristics and the evolution of Muscovite metallogenic temperature.The results show that the lithological interfaces can be effectively distinguished by the mineral assemblages such as quartz,muscovite and chlorite identified by infrared spectroscopy.The XRF element analysis shows that W,Pb,Zn and other metallogenic elements are significantly enriched in the metamorphic sandstone layer and the top of the granite,which is consistent with the spatial distribution of the tungsten ore body.The short-wave infrared spectral characteristics of muscovite are affected by chemical composition and metallogenic temperature.The ore-forming related muscovite is characterized by at around Pos2200 near 2 204 nm,relative intermediate ore-forming temperature,rich in Al and poor in Si,Fe,Mg relatively,com-bined with the electron microprobe temperature.This study has confirmed the high efficiency of infrared spectros-copy and XRF technology in extracting deep mineralization information,but the identification of vein mineraliza-tion needs to be combined with imaging spectroscopy.The results could provide a multi-dimensional symbol of mineral-element-temperature for deep tungsten prospecting in Nanling,and promote the innovation of deep re-source exploration technology.关键词
科学深钻/南岭钨矿/红外光谱/XRF元素/白云母Key words
scientific deep drilling/Nanling tungsten deposit/infrared spectroscopy/XRF element/muscovite分类
天文与地球科学引用本文复制引用
赵龙贤,史维鑫,原春雨,张弘,李振焕,葛天助..南岭科学深钻NLSD-2红外光谱及XRF元素特征[J].中国地质调查,2025,12(3):45-56,12.基金项目
国家科学技术部科技基础资源调查专项"我国代表性科学钻探岩心科学数据库建设(编号:2022FY101800)"、中国地质调查局"实物地质资料采集更新与数字化应用(编号:DD20230138)"及自然资源实物地质资料中心创新基金项目"固体矿产三维地质建模工具对比研究(编号:CXJJ2024-02)"联合资助. （编号:2022FY101800）
