Minschun-Brekzie

Representation and status

Color CMYK

(25%,0%,20%,22%)

Color RGB

R: 150 G: 200 B: 160

Rank

lithostratigraphic unit

Validity

Unit is in Use

Status

local name (informal)

Status discussion

Nomenclature

Deutsch

Minschun-Brekzie

Français

Brèche du Piz Minschun

Italiano

Breccia del Piz Minschun

English

Minschun Breccia

Origin of the Name

Ostflank des Piz Minschun (GR)

Historical Variants

Minschunbreccie (Paulcke 1910b, Staub & Cadisch 1920), Polygene Konglomerate (Transgression)

Description

Description

Transgressionsbrekzie vs. Reibungsbrekzie ?

Geography

Geographical extent

Unterengadiner Fenster.

Palaenography and tectonic

Tectonic unit (resp. main category)

• Tasna

Kind of protolith

• sedimentary

References

Definition

Paulcke W. (1910) : Tertiär im Antirhätikon und die Beziehungen der Bündner-Decke zur Niesenflyschdecke und der helvetischen Region. Centralbl. Min., Geol., Pal. 1910, 540

Definition

Florineth Duri, Froitzheim Nikolaus (1994) : Transition from continental to oceanic basement in the Tasna nappe (Engadine window, Graubünden, Switzerland): evidence for Early Cretaceous opening of the Valais ocean. Schweiz. min. petrogr. Mitt. 74/3, 437–448

p.441: A breccia horizon with clasts of granite occurs locally at the base of the formation.