prävariszisches polyzyklisches Grundgebirge der Silvretta-Decke

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Representation and status

Index
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CMYK Color
-
RGB color
R: 250 G: 210 B: 210
Rank
lithostratigraphic Group
Validity
Unit is in Use
Status
informal term
SCS note
-
SCS date
-
Comment
-

Nomenclature

German
prävariszisches polyzyklisches Grundgebirge der Silvretta-Decke
French
socle polycyclique antévarisque de la nappe de la Silvretta
Italian
-
English
-
Origin of the Name
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Historical Variants
gneiss-amphibolite association (Frisch et al. 1984)
Nomenclatorial Remarks
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Synonyms

Synonyms
Non-synonyms
Possible confusion

Description

Description
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Geomorphology
-
Thickness
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Components

Lithological content
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Mineral content
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Fossil content
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Hierarchy and succession

Units at roof
    -
Units at floor
Lateral equivalents
Upper boundary
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Lower boundary
-
Stratigraphic discussion
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Age

Age at top
Late Ordovician
Note about top
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Age at base
Neoproterozoic (= Late Proterozoic)
Note about base
-
Dating method
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Geography

Geographical extent
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Type area
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Type locality
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Type profile
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Reference profiles
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Point of interest
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Paleogeography and tectonic

Paleogeography
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Kind of protolith
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Conditions of formation
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Sequence
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Tectonic Unit (resp. main category)
Silvretta
  • S-chanf :
    inkl. Suvsilvrettide Linsen
Metamorphism
polycyclic (Alpine, Variscan and older)
Metamorphic facies
  • amphibolite facies
Note on metamorphism
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References

Definition
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Revision
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Important publications
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Material and varia

Applications
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  • «Jüngere Orthogneise» Show details

    Origin of the Name
    -
    Rank
    lithostratigraphic unit
    Status
    incorrect name (though informally used)
    Valid name
    In Short
    Ordoviszische Metaplutonite: grob- bis mittelkörniger Zweiglimmeraugengneis, mittel- bis feinkörniger Muskowitgneis, sowie Meta-Aplit und Metapegmatit.
    Age
    Late Ordovician - Late Ordovician
    Thickness
    -
    Geographical extent
    -
    Type area
    -
    Comment
    -
    • Flüela-Augengneis Show details

      Origin of the Name

      Flüela Weisshorn (GR) (bzw. Flüelapass)

      Rank
      lithostratigraphic Formation
      Status
      informal term
      Valid name
      In Short
      Heller, grobaugiger, flaseriger, Zweiglimmer-Alkalifeldspatgneis. Oft mit fein- bis mittelkörnigen Muskovit-Alkalifeldspatgneisen verknüpft.
      Age
      Late Ordovician - Late Ordovician
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
    • Tschuggen-Augengneis Show details

      Origin of the Name

      Tschuggen (GR) an der Flüelastrasse

      Rank
      lithostratigraphic Formation
      Status
      informal term
      Valid name
      In Short
      Dunkler, biotitreicher «Jüngerer Orthogneis» der Silvretta-Decke, mit einzelne kleinere und loser verteilte Kalifeldspataugen.
      Age
      Ordovician - Ordovician
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
    • Frauenkirch-Augengneis Show details

      Origin of the Name

      Frauenkirch (GR), SW Davos

      Rank
      lithostratigraphic unit
      Status
      local name (informal)
      Valid name
      In Short
      Aplitisch-pegmatitischer «Jüngerer Orthogneis» der Silvretta-Decke (Fe-karbonathaltige Variante des Typs Flüela).
      Age
      Ordovician - Ordovician
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      Als hochdifferenzierte Entwicklung des Flüela-Granites interpretiert (Maggetti & Flisch 1993).
    • Fuorcla-Gneis Show details

      Origin of the Name
      -
      Rank
      lithostratigraphic unit
      Status
      -
      Valid name
      In Short
      -
      Age
      -
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
    • Radönt-Augengneis Show details

      Origin of the Name

      Piz Radönt (GR), SSW Flüelapass

      Rank
      lithostratigraphic unit
      Status
      local name (informal)
      Valid name
      In Short
      Glimmerreicher (Biotit und Muskovit) Augengneis der Silvretta-Decke.
      Age
      Late Ordovician - Late Ordovician
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
    • Urezzas-Augengneis Show details

      Origin of the Name

      Piz Urezzas (GR)

      Rank
      lithostratigraphic unit
      Status
      local name (informal)
      Valid name
      In Short
      -
      Age
      -
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
    • Güstizia-Muskovitgneis Show details

      Origin of the Name

      God da la Güstizia (GR), N Zernez

      Rank
      lithostratigraphic Formation
      Status
      informal term
      Valid name
      In Short
      Heller, mittelkörniger bis grobflaseriger, hellglimmerreicher «Jüngerer Orthogneis» der Silvretta-Decke.
      Age
      Ordovician - Ordovician
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      Am Südrand der Silvretta enthält der Güstizia-Augengneis alpin gebildeten Stilpnomelan (Grauert 1969).
    • Macun-Zweiglimmergneis Show details

      Origin of the Name

      Macun (GR)

      Rank
      lithostratigraphic unit
      Status
      local name (informal)
      Valid name
      In Short
      Fein- bis mittelkörniger Muskovit-Alkalifedspatgneis der Silvretta-Decke.
      Age
      -
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
  • «Ältere Orthogneise (und Metabasite)» Show details

    Origin of the Name
    -
    Rank
    lithostratigraphic unit
    Status
    incorrect name (though informally used)
    Valid name
    In Short
    Prä-Ordoviszische Plutonite die schon prävariszisch vergneist worden sind. Diese treten heute als polyzyklische Metagranite, dioritische Hornblendegneise, tonalitische Biotitgneise, Metagabbros, sowie Ultramafitite vor.
    Age
    Neoproterozoic (= Late Proterozoic) - Middle Ordovician
    Thickness
    -
    Geographical extent
    -
    Type area
    -
    Comment
    -
    • Mönchalp-Augengneis Show details

      Origin of the Name

      Mönchalp (GR), SE Klosters-Serneus

      Rank
      lithostratigraphic Formation
      Status
      informal term
      Valid name
      In Short
      «Älterer Orthogneis» der Silvretta-Decke: Augengneis (anatektischer S-Typ Metagranit) mit grosser K-Feldspar, bläulicher Quarz, Biotit und grau-grünlicher, pinitisierter Cordierit. Lokal schiefrig bis mylonitisiert. Enthält viele eckige Einschlüsse von älteren Paragneisen und Amphiboliten (inkl. retrograden Eklogiten).
      Age
      Precambrian - Cambrian
      Thickness
      Bis 350 m mächtig (Streckeisen in Rutsch et al. 1966).
      Geographical extent
      Pischagruppe SE Klosters, zwischen Mönchalptal und Vereinatal.
      Type area
      -
      Comment
      -
    • Rotbüel-Metagranit Show details

      Origin of the Name

      Rotbüel = Rotbühel (Österreich)

      Rank
      lithostratigraphic unit
      Status
      local name (informal)
      Valid name
      In Short
      Schollenreicher, muskovitführender «Älterer Orthogneis» der Silvretta-Decke.
      Age
      -
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
    • Val-Gonda-Quarzdiorit Show details

      Origin of the Name

      Val Gondas (GR)

      Rank
      lithostratigraphic unit
      Status
      -
      Valid name
      In Short
      Quarzdioritischer Hornblendegneis.
      Age
      -
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
    • Granat-Hornblende-Plagioklas-Orthogneis Show details

      Origin of the Name
      -
      Rank
      lithostratigraphic unit
      Status
      informal term
      Valid name
      In Short
      -
      Age
      Neoproterozoic (= Late Proterozoic) - Early Cambrian
      Thickness
      -
      Geographical extent
      -
      Type area
      Oberes Val Sarsura (GR)
      Comment
      -
    • Val-Sarsura-Gabbrokomplex Show details

      Origin of the Name

      Oberes Val Sarsura (GR)

      Rank
      lithostratigraphic unit
      Status
      informal term
      Valid name
      In Short
      Ultramafite (harzburgitische Kumulate), massiver Olivin-Clinopyroxen-Norit, Flasergabbro, blastomylonitischer Gabbro und Tonalit.
      Age
      Neoproterozoic (= Late Proterozoic) - Neoproterozoic (= Late Proterozoic)
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
    • Rauher-Kopf-Eklogit Show details

      Origin of the Name

      Rauher Kopf (Österreich)

      Rank
      lithostratigraphic unit
      Status
      local name (informal)
      Valid name
      In Short
      -
      Age
      Cambrian - Ordovician
      Thickness
      -
      Geographical extent
      -
      Type area
      -
      Comment
      -
  • Piz-Linard-Amphibolit Show details

    Origin of the Name

    Piz Linard (GR)

    Rank
    lithostratigraphic unit
    Status
    proposal
    Valid name
    In Short
    Mächtiger lagiger Amphibolitkomplex der Silvretta-Decke.
    Age
    -
    Thickness
    -
    Geographical extent
    Lauizughorn, Vereinatal, Plattenhörner, Piz Linard, Lavin/Guarda.
    Type area
    -
    Comment
    -
  • Prävariszische Paragesteine der Silvretta-Decke Show details

    Origin of the Name
    -
    Rank
    lithostratigraphic Subgroup
    Status
    incorrect name (though informally used)
    Valid name
    In Short
    Biotit-Plagioklasgneise, Aluminosilikatgneise und -glimmerschiefer, Plagioklas-Knotengneise, sowie Marmore, Quarzite, Kalksilikatfelse, Metatexite und Fleckengneise.
    Age
    -
    Thickness
    -
    Geographical extent
    -
    Type area
    -
    Comment
    -