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Swiss Journal of Geosciences
Fig. 5 | Swiss Journal of Geosciences

Fig. 5

From: A step towards unraveling the paleogeographic attribution of pre-Mesozoic basement complexes in the Western Alps based on U–Pb geochronology of Permian magmatism

Fig. 5

BSE images of two key textures of the Guil andesite (sample BR 15-01). a Pseudomorph of an idioblastic amphibole crystal, now replaced by a fine-grained aggregate of chlorite, and displaying two key magmatic features, namely a partial inclusion of apatite, and a narrow reaction rim enriched in minute bright crystals of magnetite. b Cluster of FeTi oxides, apatite and a minute zircon grain, illustrating the glomeroporphyritic texture of the volcanic rock. c Sequence of crystallization of the minerals in the studied andesite

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