Accuracy of LA-ICPMS zircon U-Pb age determination: An inter-laboratory comparison
作者: XianHua LiXiaoMing LiuYongSheng LiuLi SuWeiDong SunHuiQing HuangKeewook Yi
作者单位: 1Chinese Academy of Sciences
2Northwest University
3China University of Geosciences
4University of Newcastle, University Drive
5Korea Basic Science Institute
刊名: Science China Earth Sciences, 2015, Vol.58 (10), pp.1722-1730
来源数据库: Springer Journal
DOI: 10.1007/s11430-015-5110-x
关键词: zircon U-Pb datingLaser ablation-inductively coupled plasma mass spectrometry (LA-ICPMS)Secondary ion mass spectrometry (SIMS)accuracyprecision
英文摘要: Abstract(#br)LA-ICPMS zircon U-Pb dating has been greatly advanced and widely applied in the past decade because it is a cheap and fast technique. The internal error of LA-ICPMS zircon U-Pb dating can be better than 1%, but reproducibility (accuracy) is relatively poor. In in order to quantitatively assess the accuracy of this technique, zircons from two dioritic rocks, a Mesozoic dioritic microgranular enclave (FS06) and a Neoproterozoic diorite (WC09-32), were dated independently in eight laboratories using SIMS and LA-ICPMS. Results of three SIMS analyses on FS06 and WC09-2 are indistinguishable within error and give a best estimate of the crystallization age of 132.2 and 760.5 Ma (reproducibility is ∼1%, 2RSD), respectively. Zircon U-Pb ages determined by LA-ICPMS in six laboratories...
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影响因子:1.255 (2012)

  • determination 测定
  • laboratory 实验室
  • zircon 锆石
  • inter 
  • comparison 比较