%0 Journal Article
%T Single zircon dating by LAM-ICPMS technique<br>
%A Haichen Liu
%A Bingquan Zhu
%A Zhanxia Zhang
%A <br>
%J 科学通报(英文版)
%D 1999
%I 
%X A UV laser ablation microprobe-inductively coupled plasma mass spectrometry (LAMICPMS) is used to determine the Pb/Pb and Pb/U ages of several zircon grains whose ages have been measured by the conventional U-Pb thermal ionization mass spectrometry (TIMS) method. The mass fractionation factor of Pb isotope ratio was typically between 0.010-0.012 and corrected by NIST610 glass standard. Several factors that influence the stability of Pb/U ratio have been investigated and optimized. The precision of207Pb/206Pb and206Pb/238U from each sampling crater is within 0.6%—2.4% and 1%—10% respectively, while the precision for the average of mean ratios from different craters is 0.7% and 6% correspondingly. The207Pb/206Pb and206Pb/238U age differences compared with TIMS results are   1% and < 3% respectively.
%K laser ablation microprobe
%K ICP-MS
%K zircon
%K geochronology<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=C6B2D1177A0B87F78DD71212D376A296&yid=B914830F5B1D1078&vid=1AE5323881A5ECDC&iid=0B39A22176CE99FB&sid=B1F98368A47B8888&eid=B1F98368A47B8888&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=5