• Complesso del (Monte) Gruf

    Rank
    tectonic unit
    Status
    informal term
    In short

    The Gruf Complex is a polymetamorphic migmatitic unit of the Eastern Lepontic (Ticino Culmination), interpreted as a lower crust compartment (possibly related to the Adula Nappe) that was dragged up by the rise of the Bregaglia Intrusion. It directly underlies the Tambo Nappe and the ophiolitic Chiavenna Nappe to the north along a steeply N-dipping fault and follows the base of the Bregaglia Intrusion to the south.

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  • Complesso migmatitico del (Monte) Gruf

    Origin of the Name

    Monte Gruf (Italia)

    Rank
    lithostratigraphic Group
    Status
    informal term
    In short

    Variszische migmatitische und granitische Gneise der Bodengo-Gruf-Einheit östlich der Mera: isoklinal gefaltete quarzo-feldspatische Bändergneise mit mafische Lagen.

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    • Marmo del Complesso del (Monte) Gruf

      Rank
      petrography
      Status
      informal term
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    • Gneiss di Sivigia

      Name Origin

      Alpe Sivigia (Italia), alta Val Codera

      Rank
      lithostratigraphic unit
      Status
      informal term
      In short

      Metapeliti a granato, biotite, sillimanite e corindone, con facies granulitiche a granato, biotite, sillimanite, iperstene, saffirina, cordierite, spinello.

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    • Anfibolite del Complesso del (Monte) Gruf

      Rank
      petrography
      Status
      informal term
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