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Fig. 2 | Swiss Journal of Geosciences

Fig. 2

From: Paleocene metamorphism along the Pennine–Austroalpine suture constrained by U–Pb dating of titanite and rutile (Malenco, Alps)

Fig. 2

a Log of the drill-core through the Margna crust, brecciated material, and serpentinized peridotites from Malenco unit. White stars indicate location of the three studied samples; sample names are given as white text. b Field aspect of a gneissic and amphibole-rich clast in a chl–amph–mica rich matrix. c Field aspect of an amphibole-rich clast in a qtz–fsp–chl matrix. d Thin-section of Breccia A at 17.27 m depth in the core. Chlorite–phlogopite and amphibole-rich mm-thick shear zone separating feldspar porphyroblasts. Titanites surround rutile grains. e Thin-section of Breccia A at 19.03 m depth in the core. Feldspar porphyroblasts surrounded by a chlorite and phlogopite shear zone containing titanite. f Thin section of the blackwall rocks at 60.64 m-depth in the core. Titanite idiomorphic grains are aligned in a chlorite–phlogopite matrix. g Thin section at 61.62 m depth in the core, also in the blackwall zone. Zoom on an idiomorphic titanite grain that overgrown rutile

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