From ID-TIMS U-Pb dating of single monazite grain to APT-nanogeochronology: application to the UHT granulites of Andriamena (North-Central Madagascar)

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

Open Access

Fig. 5

Chemical EDS map obtained with TEM on a feature composed of two nanophases observed in monazite hosted in quartz (M13). Analyzed area is shown on STEM-ADF image (left) and chemical map show the spatial distributions of Pb (blue) and Si (red). Pb is strictly localized in the bright area while the darker area contains Si. The mixing area is an effect of the superposition in depth of the two nanophases (FIB foil is 50 to 100 nm thick).

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