High-Resolution Cathodoluminescence Images of Igneous and Metamorphic Monazite
文献类型：期刊论文
| 作者 | Yang, Saihong4; Chen, Yi1,2; Li, Xianhua1,2; Tang, Xu1; Liu, Jingbo1,2; Mao, Qian1; Aung, Me Me3 |
| 刊名 | MICROSCOPY AND MICROANALYSIS
 |
| 出版日期 | 2023-07-12 |
| 页码 | 16 |
| ISSN号 | 1431-9276 |
| 关键词 | BSE imaging cathodoluminescence internal structure monazite U-Th-Pb dating X-ray mapping |
| DOI | 10.1093/micmic/ozad073 |
| 英文摘要 | Monazite is one of the most important dating accessory minerals for deciphering geological processes. The growth history of monazite can be identified by its internal structure; thus, high-resolution imaging is necessary for in situ U-Th-Pb dating. In this study, cathodoluminescence (CL) techniques were optimized via the key parameters of working distance, accelerating voltage, and beam current and were then applied to monazites from igneous and metamorphic rocks. The CL images of igneous monazites show concentric oscillatory zoning, whereas those of metamorphic monazites clearly show homogeneous, patchy, or core-rim structures. CL imaging is a more effective approach than back-scattered electron (BSE) imaging for the observation of the internal structure of monazite and may yield additional information. CL can add to the interpretation of X-ray maps and the two techniques that may complement each other. The CL spectra of monazite consist of broad peaks and sets of narrow emission rare earth element 3+ (REE3+) peaks (Gd3+, Tb3+, Dy3+, and Sm3+). The microstructures observed via CL imaging techniques can show a certain relationship between light REE (LREE) and U, Th, and Si in some igneous monazites and heavy REE (HREE) variation in some metamorphic monazites. |
| WOS关键词 | TRACE-ELEMENT ANALYSIS ; RARE-EARTH-ELEMENT ; SIMS U-PB ; ELECTRON-MICROPROBE ; CHEMICAL-COMPOSITION ; EVEREST REGION ; ZIRCON ; GEOCHRONOLOGY ; SEQUENCE ; AGE |
| WOS研究方向 | Materials Science ; Microscopy |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:001023914200001 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/111271]  |
| 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, Yi |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, 19 Beitucheng Western Rd, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, 1 Yanqihu East Rd, Beijing 101408, Peoples R China 3.Banmaw Univ, Geol Dept, Banmaw, Nanpha St, Banmaw Township 999091, Kachin State, Myanmar 4.Chinese Acad Sci, Key Lab Lunar & Deep Space Explorat, Natl Astron Observ, 20A Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Saihong,Chen, Yi,Li, Xianhua,et al. High-Resolution Cathodoluminescence Images of Igneous and Metamorphic Monazite[J]. MICROSCOPY AND MICROANALYSIS,2023:16. |
| APA | Yang, Saihong.,Chen, Yi.,Li, Xianhua.,Tang, Xu.,Liu, Jingbo.,...&Aung, Me Me.(2023).High-Resolution Cathodoluminescence Images of Igneous and Metamorphic Monazite.MICROSCOPY AND MICROANALYSIS,16. |
| MLA | Yang, Saihong,et al."High-Resolution Cathodoluminescence Images of Igneous and Metamorphic Monazite".MICROSCOPY AND MICROANALYSIS (2023):16. |
入库方式： OAI收割
来源：地质与地球物理研究所
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