Muot-da-Rubi-Formation

Rappresentazione e statuto

Colore CMYK

(0%,8%,50%,2%)

Colore RGB

R: 250 G: 230 B: 125

Rango

Formazione litostratigrafica

Uso

Unità in uso.

Status

termine formale valido

Nomenclatura

Deutsch

Muot-da-Rubi-Formation

Français

Formation du Muot da Rubi

Italiano

Formazione del Muot da Rubi

English

Muot da Rubi Formation

Origine del nome

Muot da Rubi = Kistenstöckli (GR)

Varianti storiche

Muot-da-Rubi Formation (Menkveld et al. 2016)

Descrizione

Descrizione

Ablagerungen des Übergangs zwischen der mergeligen Stad-Formation und der Nordhelvetischen Flysch-Gruppe bzw. den Südhelvetischen Flyschablagerungen.

Gerarchia e successione

Unità di rango inferiore

• Ahornen-Member
• Kistenstöckli-Member
• Ghölzwald-Member
• Malor-Member
• Südelbach-Member

Limite superiore

Taveyannaz-Sandstein (tektonischer Kontakt)

Limite inferiore

Stad-Formation

Età

Geomorfologia

• Priaboniano

Osservazioni sul tetto

Evtl. bis Rupelian?

Età alla base

• Priaboniano

Metodo di datazione

Biostratigraphie: seltene planktonische Foraminiferen.

Geografia

Estensione geografica

Zentralschweiz und Ostschweiz.

Regione-tipo

Glarner Alpen (GL)/(GR) [Aar-Massiv]

Località-tipo

• Kistenstöckli = Muot da Rubi (GR)
  Caratteristiche del sito
  • typische Fazies
  Agibilità del sito
  • Grat
  Coordinate
  • (2720650 / 1186350)
  Nota
  • Menkveld-Gfeller et al. 2016 (kein Typusprofil).

Paleogeografia e tettonica

• Paleogene del Elvetico

Paleogeografia

Proximal NHS (N-Helv.) , Distal NHS (S-Helv.)

Termini generici

• Östliches Helvetikum :
  u.a. Glarner Alpen
• Zentrales Helvetikum :
  u.a. Berner Oberland

Tipo di origine

• sedimentaria

Metamorfismo

non metamorfo

Referenze

Definizione

Menkveld-Gfeller Ursula, Kempf Oliver, Funk Hanspeter (2016) : Lithostratigraphic units of the Helvetic Palaeogene: review, new definition, new classification. Swiss J. Geosc. 109/2, 171-199

p.188: The here newly established and defined Muot-da-Rubi Formation combines spatially isolated sedimentary successions that represent the transition from ‘‘Globigerina Marl’’ (Stad Formation) into North- and South Helvetic flysch facies. Type locality is at Muot-da-Rubi/Kistenstöckli (2720.650/1186.350); there is no type section.

The Muot-da-Rubi Formation can be subdivided into several members: Ahornen Member, Kistenstöckli Member, Ghölzwald Member (all North Helvetic); Malor Member, Südelbach Member, (all South Helvetic; Table 2). For further descriptions see Soder (1949; ‘‘Südelbach-Serie‘‘), Styger (1961), Frey (1965; ‘‘Ahornenschichten’’, ‘‘Kistenstöckli-Schichten’’, ‘‘Ghölzwald-Schichten’’, and ‘‘Malor-Schichten’’), and Mayoraz (1995; ‘‘Brèches tertiaires’’).

Lithology: The Muot-da-Rubi Formation incorporates isolated members, which have in common that they show a facies transition of the silty-marly Stad Formation into flysch sediments through the appearance of turbidic sandstone beds and breccia layers. (See description of the individual members.) The Muot-da-Rubi Formation can be found in the North- and South Helvetic depositional areas. Overlying strata: Taveyannaz Formation, tectonic boundary; underlying strata: Stad Formation. Biostratigraphy: Priabonien to ?Rupelian, planktonic foraminifera (very rare). Current geographical extent: See individual members. Tectonic unit: See individual members.