Complesso di falde di Antigorio

Representation and status

Color RGB
R: 241 G: 239 B: 237
Rank
nappe complex
Validity
Unit is in Use
Status
local name (informal)

Nomenclature

Deutsch
Antigorio-Deckenkomplex
Français
Complexe de nappes d'Antigorio
Italiano
Complesso di falde di Antigorio
English
Antigorio Nappe Complex

Hierarchy and sequence

Subordinate units

Geography

Geographical extent
[kommt auf den GA25-Blättern 034_Basodino, 061_Simplon, 145_Greina, 159_Locarno, sowie XXX_Binntal, XXX_Comologno und XXX_Maggia vor]

Palaenography and tectonic

Tectonic unit (resp. main category)
Kind of protolith
  • tectonic
Metamorphism
non metamorphic

References

Definition
Gouffon Yves (Editor) (2024) : Tectonic Map of Switzerland 1:500000, Explanatory notes. Federal Office of Topography swisstopo, Wabern

The Antigorio Nappe and the Mergoscia Zone have been grouped under the term Antigorio Nappe Complex because the boundary between the two is not clear and has been defined differently by the authors (e.g., Burri 2005, Berger & Mercolli 2006, Pfeifer et al. 2018). Furthermore, this boundary is completely unidentifiable in the Southern Steep Belt (or “root zone” north of the Tonale Fault), where the rocks of each of these units are no longer recognizable due to their migmatization. In addition, isoclinal folds parallel to the schistosity affect the contact between these two units.

  • Falda di Antigorio

    Name Origin

    Valle Antigorio (Italia)

    Rank
    nappe
    Status
    valid
    In short

    Falda del Pennidico inferiorie lepontino, con basamento cristallino paleozoico (esclusivamente ortogneiss) e copertura autoctona mesozoica (zona del Teggiolo).

    Age
    Cisuralian (= Early Permian)
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    • zona della Pioda di Crana

      Name Origin

      Pioda di Crana (Italia), Valle Vigezzo

      Rank
      tectonically bounded lithostratigraphic unit
      Status
      informal term
      In short

      Denominazione della falda di Antigorio nel fianco superiore della grande struttura Wandfluhhorn-Bosa.

      Age
      Late Carboniferous (= Pennsylvanian)
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  • Zona di Mergoscia

    Name Origin

    Valle di Mergoscia (TI)

    Rank
    tectonic zone
    Status
    informal term
    In short

    Komplexes, heterogenes Gneiskomplex (Mélange?) mit Eklogit-Relikten.

    Age
    Paleozoic
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