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Laser probe-inductively coupled plasma mass spectrometry (LP-ICP-MS) was used to determine207Pb/206Pb ratios in single zircon grains. A Nd: YAG laser operating at 1 064 nm and a Fisons-VG PQII Turbo ICP-MS were employed. For the known zircons, the207Pb/206Pb results of LP-ICP-MS are close to the thermal ionization mass spectrometry (TIMS) results. The spatial resolution of this method is 40–50 pm...
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