Bellaluna-Member

Back to the list

Representation and status

Index
-
CMYK Color
-
RGB color
R: 185 G: 50 B: 35
Rank
lithostratigraphic Member
Validity
Unit is in Use
Status
informal term
SCS note
-
SCS date
-
Comment
-

Nomenclature

German

Bellaluna-Member

French
Membre de Bellaluna
Italian
Membro di Bellaluna
English

Bellaluna Member

Origin of the Name

Bellaluna (GR), Albulatal, 3 km SE Filisur

Historical Variants
Feldsteinporphyr (Theobald 1864 S.50), Bellalunaporphyr (Ott 1922), Bellaluna Member (Furrer et al. 1985), Quarzporphyr = Bellaluna-Member = Bellaluna-Metarhyolith (Furrer et al. 2015)
Nomenclatorial Remarks
-

Synonyms

Synonyms
Non-synonyms
Possible confusion

Description

Description
-
Geomorphology
-
Thickness
Max. 800 m an der Typlokalität ; 0-180 m in der Ducankette (Furrer et al. 1985).

Components

Lithological content
-
Mineral content
-
Fossil content
-

Hierarchy and succession

Superordinate unit
Subordinate units
Units at roof
    -
Units at floor
Lateral equivalents
Upper boundary
-
Lower boundary
-
Stratigraphic discussion
-

Age

Age at top
Early Permian
Note about top
-
Age at base
Early Permian
Note about base
-
Dating method
-

Geography

Geographical extent
Albulatal, Ducankette.
Type area
Type locality
-
Type profile
-
Reference profiles
-
Point of interest
-

Paleogeography and tectonic

Paleogeography
-
Kind of protolith
  • volcanic
Conditions of formation
Terrestrische Ablagerung von vulkanischer Effusiva und ihrer Verwitterungsprodukte.
Sequence
-
Tectonic Unit (resp. main category)
Silvretta
  • S-chanf :
    inkl. Suvsilvrettide Linsen
Bernina nappe complex
  • Bernina
  • Mezzaun :
    = Müsella-Schuppe = Corn-Kristallin
  • Madulain :
    = Albula-Schuppenzone / Albula-Steilzone
  • Julier nappe
Metamorphism
-
Metamorphic facies
-
Note on metamorphism
-

References

Definition
Ott Emil (1922): Zur Geologie des westlichen Bergünerstöcke (Piz Michèl und Piz Toissa) im Oberhalbstein und der südlichen Randzone Tinzen-Preda (Graubünden). , Jahrbuch der philosoph. Fakultät II der Universität Bern II (1922), 113-125
Revision
Furrer Heinz (Ed.) (1985): Field workshop on Triassic and Jurassic sediments in the Eastern Alps of Switzerland. , Mitt. geol. Inst. ETH und Univ. Zürich (N.F.) 248, 81 S.

p.16: ... massive homogeneous layers of rhyolite and rhyodacites form the Bellaluna Mb. (800 m at Bellaluna in the Albula valley, 0-180 m in the Ducan chain).
Important publications
-

Material and varia

Applications
-