Blaisun-Member

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Representation and status

Index
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CMYK Color
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RGB color
R: 185 G: 135 B: 125
Rank
lithostratigraphic Member
Validity
Unit is in Use
Status
informal term
SCS note
-
SCS date
-
Comment
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Nomenclature

German
Blaisun-Member
French
Membre du (Piz) Blaisun
Italian
Membro del (Piz) Blaisun
English
Blaisun Member
Origin of the Name

Piz Blaisun (GR), La Punt-Chamues-ch

Historical Variants
Oberer Liasmergelkalk = fossilreicher Mergelkalk von Plattas (Burkard 1953), Blaisun-Lias (Rutsch et al. 1966), Manganschiefer = Braune Mergelschiefer = Blaisun-Member (Furrer et al. 2015)
Nomenclatorial Remarks
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Synonyms

Synonyms
Non-synonyms
Possible confusion

Description

Description

"Gutgebankter, intensiv rot gefärbter, mergeliger Kalk, der teilweise sehr eisenoxydreich und manchmal weisslichgrün gefleckt ist" (Brukard 1853)

Geomorphology
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Thickness
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Components

Lithological content
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Mineral content
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Fossil content
  • ammonites
  • crinoids
  • belemnites
  • aptychi
  • bivalves

Hierarchy and succession

Superordinate unit
Subordinate units
Units at roof
Units at floor
Lateral equivalents
Upper boundary
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Lower boundary
Trupchun-Mb. (erster Auftreten von schwarzen, manganhaltigen Schiefern oder rostrot verwitternden Turbiditen)
Stratigraphic discussion
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Age

Age at top
middle Toarcian
Note about top
Bifrons-Zone (Schiller 1906 in: Burkard 1953)
Age at base
earliest Toarcian
Note about base
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Dating method
Ammoniten und Fazies (Manganschiefer).

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)
Ela nappe Austroalpine
  • Lower Austroalpine
    • Rothorn
    • Tschirpen nappe
    • Schiahorn nappe
    • Schafläger
    • Dorfberg
      • Grünhorn
      • Casanna
    • Stammer
    • Ela nappe
    • Bernina nappe complex
      • Bernina
      • Mezzaun :
        = Müsella-Schuppe = Corn-Kristallin
      • Madulain :
        = Albula-Schuppenzone / Albula-Steilzone
      • Julier nappe
    • Err nappe complex
      • Murtiröl :
        = Seja-Kristallin = Bugliauna-Schuppe
      • Err
      • Carungas nappe
      • Corvatsch
      • Chastelets
      • Bardella-Padella :
        ex Samedan-Zone rev.
  • Upper Austroalpine
    • Campo nappe
    • Languard nappe
    • Tonale zone
    • Northern Calcareous Alps
      • Krabajoch
      • Inntal nappe
      • Lechtal nappe
        • Madrisa thrust slice
        • Schesaplana
        • Gorvion
        • Augstenberg
        • Ochsenkopf
        • Heubühl
        • Drei-Schwestern
    • Allgäu
    • Silvretta
      • S-chanf :
        inkl. Suvsilvrettide Linsen
    • Ötztal nappe
    • Umbrail-Terza
      • Umbrail-Chavalatsch
      • Terza
    • Quattervals
    • S-charl nappe
    • Ortler nappe
Metamorphism
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Metamorphic facies
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Note on metamorphism
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References

Definition
Rutsch R. F., ... (1966): Alpes suisses et Tessin méridional. , Lexique stratigraphique international, vol. 1 Europe, fasc. 7c
Revision
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Important publications
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Material and varia

Applications
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