Deutsch: Bombogno-Zone
Français: Zone du Bombogno
Italiano: Zona del Bombogno
English: Bombogno Zone
The Bombogno Zone (Western Lepontic) is situated in the western (lower) limb of the large polyphase Alpe Bosa-Wandfluhhorn Fold (located between the Maggia and Antigorio valleys), where it surrounds the Bosco Zone. It consists of a very heterogeneous series mainly of metasedimentary origin (calcschists, micaschists, paragneiss), with subordinated mafic and ultramafic bodies. It underwent an Oligocene amphibolite facies metamorphism.
Pizzo Bombogno = Pizzo Bombögn = Mittagshorn (TI)
Bombognoserie = Mischzone (Grütter 1929), Bombogno unit (Steck et al. 2013), Zona tettonica del Bombogno = Zona del Bombogno (Della Torre & Maggini 2015), Bombogno Zone (Gouffon et al. 2024)