Pb nanospheres in ancient zircon yield model ages for zircon formation and Pb mobilization

• Published in: Scientific Reports
• Main Authors: Lyon, Ian C., Kusiak, Monika A., Wirth, Richard, Whitehouse, Martin J., Dunkley, Daniel J., Wilde, Simon A., Schaumlöffel, Dirk, Malherbe, Julien, Moore, Katie L.
• Format: Text
• Language: English
• Published: Nature Publishing Group UK 2019
• Subjects: Article; East Antarctica; Napier; Antarc*; Antarctica; Enderby Land
• Online Access: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6757063/; http://www.ncbi.nlm.nih.gov/pubmed/31548570; https://doi.org/10.1038/s41598-019-49882-8

Nanospheres of lead (Pb) have recently been identified in zircon (ZrSiO(4)) with the potential to compromise the veracity of U-Pb age determinations. The key assumption that the determined age is robust against the effects of Pb mobility, as long as Pb is not lost from the zircon during subsequent g...