中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 岩石圈演化国家重点实验室
In situ calcite U-Pb geochronology by high-sensitivity single-collector LA-SF-ICP-MS

文献类型：期刊论文

作者Wu, Shitou1,2; Yang, Yueheng1,2; Roberts, Nick M. W.3; Yang, Ming1,2; Wang, Hao1,2; Lan, Zhongwu1,2; Xie, Bohang1,2; Li, Tianyi4; Xu, Lei1,2; Huang, Chao1,2
刊名SCIENCE CHINA-EARTH SCIENCES
出版日期2022-06-01
卷号65期号:6页码:1146-1160
关键词Calcite U-Pb geochronology SF-ICP-MS LA-ICP-MS Sensitivity enhancement Jet sample cones
ISSN号1674-7313
DOI10.1007/s11430-021-9907-1
英文摘要U-Pb geochronology of calcite using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) is an emerging method, with potential applications to a vast array of geological problems. Due to the low levels of U and Pb in calcite, measurement using higher-sensitivity instruments, such as sector field (SF) ICP-MS, have advantages over more commonly used quadrupole (Q) ICP-MS instruments. Using a Thermo Element XR ICP-MS, we demonstrate that the Jet+X cone combination with the N-2 enhancement technique provides the best sensitivity for measuring U and Pb isotopes. This higher sensitivity improves the precision of calcite U-Pb isotope measurements, and permits dating at high spatial resolutions (<110 mu m) and for samples containing low contents of U-238 (<1 mu g g(-1)) and/or Pb-207 (i.e., young samples <10 Ma). Using a spot size of 85 mu m with a low fluence (similar to 2.0 J cm(-2)), the laser-induced elemental fractionation of Pb-206/U-238 in the NIST SRM 614, ARM-3 and WC-1 reference materials are insignificant (<2.2%). Adopting the optimized instrument parameters, we analysed four commonly-used calcite U-Pb reference materials (WC-1, Duff Brown Tank, JT, and ASH-15). The results match well with published isotope dilution data, demonstrating the reliability of our technique. ARM-3, an andesitic glass, is shown to be an appropriate reference material for both Pb-207/Pb-206 calibration and instrument optimization because of its moderate contents of U (similar to 3.75 mu g g(-1)) and Pb (similar to 12.7 mu g g(-1)). We further demonstrate that the image-guided approach using LA-ICP-MS elemental mapping is an efficient tool in obtaining robust ages.
WOS关键词SIGNAL ENHANCEMENT ; IOLITE FREEWARE ; AGE ; NITROGEN ; SPELEOTHEMS ; CARBONATES ; SYSTEM ; CONE ; NM
资助项目National Key R&D Program of China[2018YFA0702602] ; National Natural Science Foundation of China[41903024] ; National Natural Science Foundation of China[41525012] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2022066]
WOS研究方向Geology
语种英语
WOS记录号WOS:000789723300001
出版者SCIENCE PRESS
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 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; 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 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; 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 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; 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 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/105165]  
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Yang, Yueheng
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.British Geol Survey, Environm Sci Ctr, Geochronol & Tracers Facil, Nottingham NG12 5GG, England
4.Sinopec, Key Lab Deep Geol & Resources, Beijing 102206, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Shitou,Yang, Yueheng,Roberts, Nick M. W.,et al. In situ calcite U-Pb geochronology by high-sensitivity single-collector LA-SF-ICP-MS[J]. SCIENCE CHINA-EARTH SCIENCES,2022,65(6):1146-1160.
APA Wu, Shitou.,Yang, Yueheng.,Roberts, Nick M. W..,Yang, Ming.,Wang, Hao.,...&Wu, Fuyuan.(2022).In situ calcite U-Pb geochronology by high-sensitivity single-collector LA-SF-ICP-MS.SCIENCE CHINA-EARTH SCIENCES,65(6),1146-1160.
MLA Wu, Shitou,et al."In situ calcite U-Pb geochronology by high-sensitivity single-collector LA-SF-ICP-MS".SCIENCE CHINA-EARTH SCIENCES 65.6(2022):1146-1160.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。