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Stratigraphie et évolution structurale de la zone de Furgg, au front de la nappe du Mont-Rose = Stratigraphy and structural evolution of the Furgg zone, in front part of the Monte Rosa nappe
Bulletin de la Société Vaudoise des Sciences Naturelles
The Furgg zone consists of three units. The first one, the lower Furgg zone, is made of gneiss, the second one, the middle Furgg zone, is a Mesozoic series crosscut by mafic dikes and the third one, the upper Furgg zone, consists of gneiss and meta-arkose hosting numerous boudins of mafic rocks. This last unit has been assigned a Middle Jurassic age. The studied area is strongly affected by backfolding. These folds are associated to the classical E-W dextral shear zone. The value of the direction of shear is around 280°/40°. This interpretation is compatible with the reorientation of the older structures.
Switzerland , Swiss Alps , nappes , gneisses , Mesozoic , basalts , mafic composition , Middle Jurassic , shear , folds , lithostratigraphy , amphibolites , metamorphism , lineation , tectonic controls , continental margin , dolostone , quartzites , oceanic crust , Central Europe , Europe , Alps , metamorphic rocks , Phanerozoic , volcanic rocks , igneous rocks , Jurassic , carbonate rocks , sedimentary rocks ,
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