Postvariszische Extrusiva des Err-Deckenkomplexes

Back to Err Nappe Complex

Representation and status

Color CMYK
(0%,50%,63%,22%)
Color RGB
R: 200 G: 100 B: 75
Rank
lithostratigraphic unit
Validity
Unit is in Use
Status
incorrect name (though informally used)

Nomenclature

Deutsch
Postvariszische Extrusiva des Err-Deckenkomplexes
Historical Variants

calc-alkaline series (Mercolli 1982 und 1989, Handy et al. 1993), Permian volcanic assemblage (Manatschal & Nievergelt 1997)

Hierarchy and sequence

Subordinate units
Upper boundary

Permo-Trias bis Lias (non-conformity)

Age

Age at top
  • Permian
Age at base
  • Permian

Palaenography and tectonic

Tectonic unit (resp. main category)
Kind of protolith
  • volcanic

References

Definition
Manatschal Gianreto, Nievergelt Peter (1997) : A continent-ocean transition recorded in the Err and Platta nappes (Eastern Switzerland). Eclogae geol. Helv. 90/1, 3-27

p.7: A Permian volcanic assemblage stratigraphically overlies gneisses and granophyres. It consists of rhyolites (e.g. Neir-Porphyroid of Cornelius [1935]) with intercalations of rhyodacites (e.g. "violette Sprenkelschiefer" of Cornelius [1935]) and dacites to andésites (e.g. Vairanaschiefer of Cornelius [1935]) and is part of a calc-alkaline series (Mercolli 1982. 1989. and Fig. 4 in Handy et al. 1993).

  • Nair-Porphyroid

    Name Origin

    Piz Nair = Piz Neir (GR) im Juliergebiet

    Rank
    lithostratigraphic Formation
    Status
    informal term
    In short

    Postvariszischer rhyolitischer Gneiss und Schiefer (Metarhyolith bis Metarhyodazit in Grünschiefer-Fazies).

    Age
    Carboniferous
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    • Lavatèra-Brekzie

      Name Origin

      Ova Lavatèra (GR), SE Piz Martedell

      Rank
      lithostratigraphic unit
      Status
      local name (informal)
      Valid term
      Nair-Porphyroid
      In short
      Rein kristalline Brekzie, die als lokale brekziöse Ausbildung des Nair-Porphyroids betrachtet ist.
      Age
      Permian
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    • «Pyritquarzit»

      Rank
      petrography
      Status
      informal term
      In short

      Linsenförmige Einlagerung von Pyrit-reichem Quarzit im Nair-Porphyroid.

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  • «Sprenkelschiefer»

    Rank
    lithostratigraphic Formation
    Status
    incorrect name (though informally used)
    In short

    Violetter rhyodazitischer Schiefer (Metatuff bis - Tuffit).

    Age
    Carboniferous
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  • Varaina-Schiefer

    Name Origin

    Alp / Val Varaina (GR)

    Rank
    lithostratigraphic Formation
    Status
    local name (informal)
    In short

    Metaandesit / Grünschiefer.

    Age
    Carboniferous
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  • Tschima-da-Flix-Granitporphyr

    Name Origin

    Tschima da Flix (GR), Oberhalbstein

    Rank
    lithostratigraphic Formation
    Status
    unknown status
    In short

    Metagranitporphyr

    Age
    Carboniferous
    Show details
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