• Zona di Mergoscia

    Origine du nom

    Valle di Mergoscia (TI)

    Rang
    zone tectonique
    Statut
    terme informel
    Âge
    Paléozoïque - Mésozoïque
    En bref

    The Mergoscia Zone is a heterogeneous tectonic unit of the Western Lepontic (Toce Culimnation). It is composed of ortho- and paragneisses, metapelites, calcschists, metabasites and meta-ultrabasites. Both metabasites and meta-ultrabasites contain rare relics of high-pressure metamorphism (retrogressed eclogites and garnet-metaperidotites). This zone, displaying a high degree of deformation, is also interpreted as a mélange rather than as an originally stratified framework.

  • Scisti del Gaggio

    Origine du nom

    Il Gaggio (TI)

    Rang
    Formation lithostratigraphique
    Statut
    terme informel
    En bref

    Micascisti eterogenei, a due miche con quarzo e plagioclasio, spesso a patina bruno-rossiccia.

  • Gneiss di Mergoscia

    Origine du nom

    Valle di Mergoscia (TI)

    Rang
    Membre lithostratigraphique (Sous-formation)
    Unité hiérarchiquement supérieure
    Statut
    terme informel
    En bref

    Gneiss a biotite, feldspato alcalino ed oligoclasio, eterogeno a tessitura nodosa-venosa, a carattere migmatitico.

haute de page