Petrogenesis and tectonic-magmatic context of emplacement of lepidolite and petalite pegmatites from the Fregeneda-Almendra field (Variscan Central Iberian Zone): clues from Nb-Ta-Sn oxide U-Pb geochronology and mineral geochemistry

Special Issue Some applications of LA-ICP-MS U-Pb geochronology: A tribute to Jean Louis Paquette

Open Access

Fig. 15

Tera-Wasserburg and weighted mean ²⁰⁶Pb/²³⁸U age diagrams for columbite-group minerals from the Bajoca petalite-rich pegmatite (a) and Feli Li-mica-rich pegmatite (b). Ellipses, error bars and ages are reported at 2σ. Colors represent semi-quantitative U concentrations.

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