%0 Journal Article
%T In situ simultaneous determination of trace elements, U-Pb and Lu-Hf isotopes in zircon and baddeleyite
%A LieWen Xie
%A YanBin Zhang
%A HuiHuang Zhang
%A JingFeng Sun
%A FuYuan Wu
%J Chinese Science Bulletin
%@ 1861-9541
%D 2008
%I 
%R 10.1007/s11434-008-0086-y
%X This paper describes a combined method of simultaneously measuring U-Pb and Lu-Hf isotopes as well as trace elements in Phalaborwa baddeleyite and 91500, GJ-1, TEMORA-1 and SK10-2 zircons by means of Neptune MC-ICPMS and Agilent Q-ICPMS connected to a 193 nm excimer laser ablation system. Material ablated by laser was carried in different proportions into Q-ICPMS for U-Pb isotopic and trace elemental and MC-ICPMS for Lu-Hf isotopic compositions. Experiments indicate that different proportions of ablated material for the Q-ICPMS and MC-ICPMS (6:4, 5:5 and 4:6 respectively) do not show any bias for the zircon/baddeleyite U-Pb age, Lu-Hf isotope and trace elemental compositions within analytical errors. Using 40每60 米m spot size, the obtained U-Pb ages of Phalaborwa baddeleyite, 91500, GJ-1, TEMORA and SK10-2 zircons are 2065㊣15 (2考, n=20), 1063㊣6 (2考, n=19), 613㊣6 (2考, n=20), 416㊣5 (2考, n=20) and 32.6㊣0.5 (2考, n=20) Ma, respectively. The 176Hf/177Hf ratios are 0.281231㊣24 (2SD, n=20), 0.282310㊣35 (2SD, n=19), 0.282028㊣34 (2SD, n=20), 0.282687㊣34 (2SD, n=20) and 0.282752㊣53 (2SD, n=20), respectively. The obtained trace elemental compositions are identical to the reference values. Therefore, this kind of technique makes it possible to simultaneously obtain the U-Pb age, Lu-Hf isotopes and trace elemental compositions of zircon and baddeleyite, which could be an important tool in solving problems in earth sciences.
%K U-Pb age
%K Lu-Hf isotopes
%K trace elements
%K zircon
%K in situ measurement
%U http://link.springer.com/article/10.1007/s11434-008-0086-y