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Fig. 10 | Swiss Journal of Geosciences

Fig. 10

From: The evolution of the Sesia Zone (Western Alps) from Carboniferous to Cretaceous: insights from zircon and allanite geochronology

Fig. 10

Zircon in samples from Monte Mucrone. Micaschist AV17-07: af Selected CC images of analysed zircon grains. Scale bar in all images is 30 μm. Measured spots are shown (yellow circles) with the associated date (± 1σ Ma). The two grains yielding Alpine ages are marked by a red frame. g REE patterns of zircon domains of Permian age (rim1, grey lines) and of Alpine Alpine age (rim2, red lines). h Concordia plot for zircon rim1 and weighted average 206Pb/238U age. The green circle represents the calculated Concordia age. i Concordia plot for zircon rim2 and weighted average 206Pb/238U age. The green circle represents the calculated Concordia age. Eclogite AV17-16: jm CC images of the recovered and analysed zircon grains. Scale bar in all images is 30 μm. Measured spots are shown (yellow circles) with the associated date (± 1σ Ma). n REE patterns of zircon cores. o Concordia plot for zircon core and weighted average 206Pb/238U age. The green circle represents the calculated Concordia age

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