A rapid transition from subduction to Barrovian metamorphism: geochronology of mafic-ultramafic relicts of oceanic crust in the Central Alps, Switzerland
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Relicts of subducted oceanic lithosphere provide key information for the tectonic reconstructions of convergent margins. In the Central Alps, such relicts occur as isolated mafic-ultramafic lenses within the migmatites of the southern Adula nappe and Cima-Lung... ...
