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Mineralogical and Geochemical Characterization at A Micro-scale of A New Natural Chalcopyrite Reference Material for In-situ Fe Isotopic Ratio Analysis

文献类型：期刊论文

作者Chen, Lei3,4; Feng, Yan-Tong5; Yu, Hui-Min1; Li, Lin2; Ding, Xin1; Zhang, Wen5; Kang, Jin-Ting1; Li, Xian-Hua3
刊名ATOMIC SPECTROSCOPY
出版日期2023
卷号44期号:1页码:14-23
ISSN号0195-5373
DOI10.46770/AS.2022.186
英文摘要Chalcopyrite is a widely distributed Fe sulfide in magmatic and magmatic-hydrothermal systems. Stable Fe isotope analysis of Fe-bearing sulfides has been proven to be a powerful tool for tracking the evolution of these deposits and analyzing their mineralization mechanisms. Previous geological studies using multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS), which makes it challenging to determine the Fe isotopic values of small or structurally complex chalcopyrite, have shown that the delta Fe-56 values of chalcopyrite fall within a wide range (similar to 4%). In-situ Fe isotope analysis using laser ablation MC-ICP-MS (LA-MC-ICP-MS) and secondary ion mass spectrometry (SIMS), featuring high precision and spatial resolution, can effectively compensate for the above deficiencies. However, the accuracy of in-situ techniques is mainly controlled by matrix-matched reference materials (RMs). To change the present situation in which there is no ideal natural chalcopyrite RMs for Fe isotopic ratio determination, we evaluated the feasibility of natural chalcopyrite (Tianyu-Ccp) collected from the Tianyu magmatic Ni-Cu sulfide deposit (China) as the RM for in-situ Fe isotopic microanalysis. The Tianyu-Ccp chalcopyrite is homogeneous in terms of major elements and Fe isotopic compositions. For in-situ microanalysis, the standard deviation of the Fe isotopic composition is 0.19% (2 SD, n = 86..for delta Fe-56 value. The best recommended Fe isotopic composition, measured by solution MC-ICP-MS, is a delta Fe-56 value of 0.39 +/- 0.07% (2 SD, n = 4), based on four different chalcopyrite grains. Therefore, we propose Tianyu-Ccp chalcopyrite as a potential natural RM for in-situ Fe isotopic ratio analysis and expect it to be used for further tracing the formation and evolution of sulfide deposits.
WOS关键词MC-ICP-MS ; FEMTOSECOND LASER-ABLATION ; HIGH-PRECISION FE ; IRON-ISOTOPE ; CRYSTAL-STRUCTURE ; CU ; DEPOSIT ; PORPHYRY ; MINERALIZATION ; FRACTIONATION
资助项目National Key R&D Program of China[2018YFA0702600] ; Fundamental Research Funds for the Central Universities[2-9-2020-025] ; Natural Science Foundation of China[41672092]
WOS研究方向Spectroscopy
语种英语
出版者ATOMIC SPECTROSCOPY PRESS LTD
WOS记录号WOS:001008013700003
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/111221]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Chen, Lei; Li, Xian-Hua
作者单位1.Univ Sci & Technol China, Chinese Acad Sci Key Lab Crust Mantle Mat & Enviro, Sch Earth & Space Sci, Hefei 230026, Peoples R China
2.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
4.China Univ Geosci, MNR Key Lab Explorat Theory & Technol Crit Mineral, Beijing 100083, Peoples R China
5.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Lei,Feng, Yan-Tong,Yu, Hui-Min,et al. Mineralogical and Geochemical Characterization at A Micro-scale of A New Natural Chalcopyrite Reference Material for In-situ Fe Isotopic Ratio Analysis[J]. ATOMIC SPECTROSCOPY,2023,44(1):14-23.
APA Chen, Lei.,Feng, Yan-Tong.,Yu, Hui-Min.,Li, Lin.,Ding, Xin.,...&Li, Xian-Hua.(2023).Mineralogical and Geochemical Characterization at A Micro-scale of A New Natural Chalcopyrite Reference Material for In-situ Fe Isotopic Ratio Analysis.ATOMIC SPECTROSCOPY,44(1),14-23.
MLA Chen, Lei,et al."Mineralogical and Geochemical Characterization at A Micro-scale of A New Natural Chalcopyrite Reference Material for In-situ Fe Isotopic Ratio Analysis".ATOMIC SPECTROSCOPY 44.1(2023):14-23.

入库方式： OAI收割

来源：地质与地球物理研究所

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