Soja-Decke

Representation and status

Color CMYK
(0%,1%,2%,5%)
Color RGB
R: 241 G: 239 B: 237
Rank
nappe
Validity
Unit is in Use

Nomenclature

Deutsch
Soja-Decke
Français
Nappe du (Val) Soja
Italiano
Falda di Soja
English
Soja Nappe
Origin of the Name

Val Soja = Val Soi (TI)

Historical Variants

--- (Argand 1915, Jenny 1923, Egli 1966), Sojateildecke (Heydweiller 1918), Sojadecke = Sojalappen = Sojazug (Bosshard 1925), Valsojadecke (Staub 1920), Sojamulde (Kündig 1926a), Soia-Decke (Niggli et al. 1936), Sojaschuppe (Egli 1966), Sinclinale di Soja (Bianconi 1971), Soja nappe = nappe de Soja = soja unit s.str. (Galster et al. 2010), Soja unit (Galster et al. 2012), Soi-Decke, falda della Val Soi, falda della Val Soja

Hierarchy and sequence

Subordinate units
Units at roof
Units at floor

Geography

Geographical extent
Val Soi, Val Mavaglia, Val Combra, Val Pontirone (+ Pizzo di Claro?) [kommt auf den GA25-Blättern XXX_Biasca, XXX_Grono, XXX_Mesocco, XXX_Olivone und XXX_Osogna vor].

References

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

p.53: The small Soja Nappe includes a polycyclic crystalline basement covered by Permian to Jurassic sediments. It is located below the Adula Nappe in its frontal part, where it is wedged between this latter nappe and the Simano Nappe. To the north, it extends into the Garzott Slices located in the core of the Lunschania Antiform and surrounded by the Piz Terri-Lunschania Nappe. Due to this structural position, Galster et al. (2012) attached the Garzott Slices to the Piz Terri-Lunschania Nappe, but the facies analogies bring them closer to the Soja Nappe (Vögeli et al. 2013). A paleogeographic origin of the Soja Nappe between the Piz Terri-Lunschania Nappe and the Adula Nappe is plausible.

Important Publications
Egli (1966) : -
  • Garzott-Schuppen

    Name Origin

    Garzott (TI), Lago di Luzzone

    Rank
    tectonic slice
    Status
    valid
    In short

    The Garzott Slices are considered as a northern extension of the Soja Nappe in the core of the Lunschania Antiform, where they are surrounded by the Piz Terri-Lunschania Nappe. Due to this structural position, Galster et al. (2012) attached the Garzott Slices to the Piz Terri-Lunschania Nappe, but the facies analogies bring them closer to the Soja Nappe (Vögeli et al. 2013).

    • Breccia di Garzott

      Name Origin

      Garzott (TI), Lago di Luzzone

      Rank
      lithostratigraphic unit
      Status
      local name (informal)
    • Gneiss di Luzzone

      Name Origin

      Val Luzzone / Lago di Luzzone (TI)

      Rank
      lithostratigraphic unit
      Status
      local name (informal)
      In short

      Paragneiss de la zone Piz-Terri-Lunschania: métagrès arkosique et micaschiste verdâtre, avec des intercalations conglomératiques. Unité caractérisée par de fréquentes taches brunes (ankérite), avec également de minces intercalations dolomitiques dans la partie supérieure.

      Age
      Permian
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