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Swiss Journal of Geosciences
Fig. 1 | Swiss Journal of Geosciences

Fig. 1

From: Discovery of Ordovician–Silurian metamorphic monazite in garnet metapelites of the Alpine External Aiguilles Rouges Massif

Fig. 1

a Position of the studied area within the pre-Alpine basement units of the Western Alps. External Massifs (in black) with the Aiguilles Rouges Massif (AR) and location of geological map in b. External massifs Arg Argentera, Be Belledonne, G Gotthard, MB Mont Blanc, P Pelvoux. Towns Gr Grenoble, To Torino. b Regional geological setting in the Col de Bérard region, petrographic map and sample locations. Geographic coordinates of the samples AR-9, 555440/94670; AR-39, 554900/93700; AR-40, 554940/93680; AR-41, 555200/93690; AR-68a, AR-1854, 555070/95470; AR-1890, 554800/91750 (Swiss Grid)

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