Ur-Brekzie

Representation and status

Color CMYK

(0%,0%,0%,100%)

Rank

tectonically bounded lithostratigraphic unit

Validity

Unit is in Use

Status

informal term

Nomenclature

Deutsch

Ur-Brekzie

Français

Brèche du Passo d'Ur

Italiano

Breccia del Passo d'Ur

English

Ur Breccia

Origin of the Name

Pass d'Ur = Passo della Poschiavina (GR)

Historical Variants

Ophiolithbreccie des Passo d'Ur (Staub 1946), Ophikarbonate am Pass d'Ur (Spillmann 1993), Tektonische Brekzie = «Ur-Brekzie» (Spillmann & Trommsdorff 2007)

Description

Description

Gerber 1966, Pfeifer 1972, Sidler 1990, Sidler & Benning 1992, Spillmann & Trommsdorff 2007

Geography

Type locality

• Pass d'Ur (GR)
  Site particularities
  • Obergrenze
  • Untergrenze
  • typische Fazies
  Coordinates
  • (2797140 / 1131550)

Point of interest

• Forcella d'Èntova (Valmalenco, Italia)
  Site particularities
  • Obergrenze
  • Untergrenze
  • typische Fazies
  Coordinates
  • (2786150 / 1134100)
  Note
  • Spillmann & Trommsdorff 2007 S.24

Palaenography and tectonic

Paleogeography

Piemont Basin

Tectonic unit (resp. main category)

• Malenco-Forno-Lizun

References

Definition

Staub R. (1946) : Geologische Karte der Berninagruppe, 1:50'000. Beitr. Geol. Karte Schweiz, Spez. Karte 118