Zircon analyses from Evisa peralkaline granite (France)

Both trace-elements and Hf isotopes were analysed in-situ by LA-ICP-MS and LA-MC-ICP-MS, respectively. As a first objective, we aimed to explore the circumstances surrounding the crystallization and subsequent alteration of amphibole-bearing rare-metal granites, which hold significant scientific interest.

To date, only about a dozen rare-metal granites of this type have been studied, with the Strange Lake (Canada) granite being the only one receiving extensive examination. The second important outcome consists of compelling evidence challenging the current understanding of trace-element and isotope behaviour in zircon.