Electron microprobe trace element analysis of rutile

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	Electron microprobe trace element analysis of rutile
	Wang Juan 1; Chen Yi 2,3; Mao Qian 2; Li QiuLi 2; Ma YuGuang 2; Shi YongHong 1; Song ChuanZhong 1
刊名	ACTA PETROLOGICA SINICA
	2017
卷号	33 期号:6 页码:1934-1946
关键词	Rutile Trace element Electron probe microanalyzer (EPMA) Zr-in-rutile thermometers
ISSN号	1000-0569
文献子类	Article
英文摘要	Synthetic oxides are commonly used as the monitor standards for the trace element analysis of rutile by Electron Probe Microanalyzer (EPMA). Systematic analyses of rutile standards are still lacking. In this study we present a detailed EPMA analysis (CAMECA SXFive) on nine elements (Al, Si, Ti, Fe, Cr, Zr, V, Nb and Ta) in the rutile standard R10. Ti and Si are used as monitor elements. To improve the analytical precision and reduce the detection limit, we have critically adjusted the acceleration voltage, beam current and counting time, and have deducted the interference peak signals. Our results show that the concentrations of Zr (780 +/- 29 x10(-6)) (1SD, n=25), Nb (2799 +/- 66 x10(-6)), V (1276 +/- 33 x10(-6)), Fe (4309 +/- 34 x10(-6)) and Cr (718 +/- 31 x 10(-6)) are well consistent with those analyzed by Secondary Ion Mass Spectrum (SIMS) or Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) within the error range. EPMA analysis in this study exhibits good stability. From a one-month monitoring period, the variations of Nb, Zr, and Cr are within 10%, whereas the variations of V and Fe are within 5%. Our modified techniques improved the analytical precisions of V, Nb and Fe in rutile. The analytical precision of Zr in this study would not significantly affect the results yielded by the Zr-in-rutile thermometer. Therefore, EPMA trace element analysis is an effective approach to understand the formation mechanisms of rutile. The techniques that can potentially improve the analytical precisions of Ta and Fe3+ analyses in rutile are also discussed.
WOS关键词	ZR-IN-RUTILE ; ICP-MS ; EASTERN CHINA ; METAMORPHIC RUTILE ; CONTINENTAL-CRUST ; DETRITAL RUTILE ; HIGH-PRESSURE ; ECLOGITES ; NB ; FRACTIONATION
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000406212700019
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/61867]
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.Hefei Univ Technol, Sch Resource & Environm Engn, Hefei 230009, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Wang Juan,Chen Yi,Mao Qian,et al. Electron microprobe trace element analysis of rutile[J]. ACTA PETROLOGICA SINICA,2017,33(6):1934-1946.
APA	Wang Juan.,Chen Yi.,Mao Qian.,Li QiuLi.,Ma YuGuang.,...&Song ChuanZhong.(2017).Electron microprobe trace element analysis of rutile.ACTA PETROLOGICA SINICA,33(6),1934-1946.
MLA	Wang Juan,et al."Electron microprobe trace element analysis of rutile".ACTA PETROLOGICA SINICA 33.6(2017):1934-1946.