Laser ablation zircon dating

Added: Yang Siller - Date: 09.05.2022 17:30 - Views: 24869 - Clicks: 9812

Laser-induced time-dependent fractionation is corrected by normalizing measured ratios in both standards and samples to the beginning of the analysis using the intercept method. Static fractionation, including those caused during laser ablation and due to instrumental discrimination, is corrected using external zircon standards.

Total uncertainty for each laser analysis of an unknown is combined quadratically from the uncertainty in the measured isotope ratios of the unknown and the uncertainty in the fractionation factors calculated from the measurement of standards. Due to unresolved contributions to uncertainty from the lack of a common Pb correction and from potential matrix effects between standards and unknowns, however, this estimate cannot be universally applied to all unknowns.

Nevertheless, the of this study provide an example of the type of precision and accuracy that may be possible with this technique under ideal conditions. This technique is especially well suited to reconnaissance geochronologic and detrital zircon studies. Enable full . Citations References Similar Papers. Volume Content. Export Citation.

Laser ablation zircon dating

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Laser Ablation ICPMS Analysis of Pyrite and U-Pb Zircon Dating of Host Rocks From the Tersang Gold Deposit, Malaysia