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Apatite U-Pb Dating with Common Pb Correction Using LA-ICP-MS/MS

文献类型：期刊论文

作者Xiang, Dunfeng1,5; Zhang, Zhiyong5; Zack, Thomas2,3; Chew, David4; Yang, Yueheng5; Wu, Lin5; Hogmalm, Johan2
刊名GEOSTANDARDS AND GEOANALYTICAL RESEARCH
出版日期2021-10-11
页码22
关键词LA-ICP-MS MS apatite U-Pb dating common Pb correction reaction cells Hg-204 isobaric interference on Pb-204
ISSN号1639-4488
DOI10.1111/ggr.12404
英文摘要Apatite is a ubiquitous accessory mineral in various rocks (e.g., igneous, metamorphic and clastic sedimentary rocks). However, precise and accurate U-Pb LA-ICP-MS dating of apatite is often compromised by high common Pb levels. Among the different common Pb correction methods, the main advantage of the Pb-204 correction method is that it does not assume U/radiogenic Pb concordance. However, Pb-204 is difficult to measure using ICP-MS instruments because of the isobaric interference of Hg-204 on Pb-204. We overcome this limitation by using a reaction cell sandwiched between two quadrupoles within an ICP-MS, which can allow the online chemical separation of two different elements. Ammonia reacts efficiently (> 98%) with Hg while isotopes of Pb are not affected. The approach was tested on eight apatite reference materials (McClure Mountain, NW-1, UWA-1, Otter Lake, Slyudyanka, MK-1, Durango and Fish Canyon Tuff) for which there are independent constraints on the U-Pb crystallisation age, by comparing U-Pb dating results employing different reaction gas mixes (NH3-N2O and NH3 only) in two laboratories. Based on the U-Pb data and SEM analyses on each sample, we can exclude apatite inter- and intra-grain U-Pb age heterogeneity, except for a c. 4% variability of ages in the Otter Lake sample. Our results show that accuracy and precision for U-Pb dating are not measurably affected by different reaction gases, and we accurately reproduce ages of numerous independently characterised apatites within 4% of the reference ages, and the age reproducibility is typically better than 2%.
WOS关键词PLASMA-MASS SPECTROMETRY ; MS ; GEOCHRONOLOGY ; PROVENANCE ; ZIRCON ; THERMOCHRONOMETER ; SYSTEMATICS ; TITANITE ; PRECISE ; DURANGO
资助项目National Natural Science Foundation of China[91755102] ; National Natural Science Foundation of China[91855207] ; National Natural Science Foundation of China[92055213] ; Vetenskapsradet and Science Foundation Ireland[13/RC/2092] ; Vetenskapsradet and Science Foundation Ireland[13/RC/2092_P2]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000705841100001
出版者WILEY
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Vetenskapsradet and Science Foundation Ireland ; Vetenskapsradet and Science Foundation Ireland ; Vetenskapsradet and Science Foundation Ireland ; Vetenskapsradet and Science Foundation Ireland ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Vetenskapsradet and Science Foundation Ireland ; Vetenskapsradet and Science Foundation Ireland ; Vetenskapsradet and Science Foundation Ireland ; Vetenskapsradet and Science Foundation Ireland ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Vetenskapsradet and Science Foundation Ireland ; Vetenskapsradet and Science Foundation Ireland ; Vetenskapsradet and Science Foundation Ireland ; Vetenskapsradet and Science Foundation Ireland ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Vetenskapsradet and Science Foundation Ireland ; Vetenskapsradet and Science Foundation Ireland ; Vetenskapsradet and Science Foundation Ireland ; Vetenskapsradet and Science Foundation Ireland
源URL[http://ir.iggcas.ac.cn/handle/132A11/102968]  
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Zhang, Zhiyong
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Univ Gothenburg, Dept Earth Sci, Gothenburg, Sweden
3.Univ Adelaide, Dept Earth Sci, Adelaide, SA, Australia
4.Trinity Coll Dublin, Sch Nat Sci, Dept Geol, Dublin 2, Ireland
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Xiang, Dunfeng,Zhang, Zhiyong,Zack, Thomas,et al. Apatite U-Pb Dating with Common Pb Correction Using LA-ICP-MS/MS[J]. GEOSTANDARDS AND GEOANALYTICAL RESEARCH,2021:22.
APA Xiang, Dunfeng.,Zhang, Zhiyong.,Zack, Thomas.,Chew, David.,Yang, Yueheng.,...&Hogmalm, Johan.(2021).Apatite U-Pb Dating with Common Pb Correction Using LA-ICP-MS/MS.GEOSTANDARDS AND GEOANALYTICAL RESEARCH,22.
MLA Xiang, Dunfeng,et al."Apatite U-Pb Dating with Common Pb Correction Using LA-ICP-MS/MS".GEOSTANDARDS AND GEOANALYTICAL RESEARCH (2021):22.

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来源：地质与地球物理研究所

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