Evaluation of Zircon Entrainment in Megacrystic Granites by Micro Drill Sampling and High-Precision in situ U-Pb Geochronology

Aku Heinonen1, Irmeli Mänttäri2, O. Tapani Rämö1, Tom Andersen3 and Kirsi Larjamo1, (1)University of Helsinki, Helsinki, Finland, (2)Geological Survey of Finland, Espoo, Finland, (3)University of Oslo, Oslo, Norway