Ahornen-Member
Torna a Elvetico orientaleRappresentazione e statuto
- Colore CMYK
- (0%,8%,51%,4%)
- Colore RGB
- R: 245 G: 225 B: 120
- Rango
- Membro litostratigrafico (Sotto-formazione)
- Uso
- Unità in uso.
- Status
- termine formale valido
Nomenclatura
- Deutsch
- Ahornen-Member
- Français
- Membre du Ahornen
- Italiano
- Membro dell'Ahornen
- English
- Ahornen Member
- Origine del nome
- Varianti storiche
-
Ahornenschichten (Frey 1965), Wildflysch = Ahornen-Schichten (Hantke et al. 2011), Ahornen Member (Menkveld-Gfeller et al. 2016)
Descrizione
- Descrizione
-
Das Ahornen-Member ist charakterisiert durch das Auftreten von grünen, vulkanischen Gesteinsfragmenten im Sandstein. Die Basis des Members besteht häufig aus plattigem Mergelstein, welcher bereits zur Stad-Formation gehört.
- Potenza
- Meist 6-10 m (Frey 1965).
Componenti
Sandstein enthält grüne, vulkanische Gesteinsfragmente.
Gerarchia e successione
- Limite superiore
-
Taveyannaz-Formation (tektonischer Kontakt)
- Limite inferiore
-
Stad-Formation
Età
- Geomorfologia
-
- Priaboniano
- Osservazioni sul tetto
-
?
- Età alla base
-
- Priaboniano
- Osservazioni sulla base
-
?
Geografia
- Estensione geografica
- Zentral- und Ostschweiz (Reusstal bis Linthtal).
- Località-tipo
-
-
Ahornenrus = Malorrus (GL)
Caratteristiche del sito- typische Fazies
- Grat
- (2716100 / 1192700)
- Styger 1961 (Profil Bodenbach), Frey 1965
-
Ahornenrus = Malorrus (GL)
Paleogeografia e tettonica
-
- Terziario
- Termini generici
- Tipo di origine
-
- sedimentaria
- Metamorfismo
- non metamorfo
Referenze
- Revisione
-
2016) :
Lithostratigraphic units of the Helvetic Palaeogene: review, new definition, new classification. Swiss J. Geosc. 109/2, 171-199
(
p.188: The Ahornen Member was first described by Frey (1965; ‘‘Ahornen-Schichten’’) at its type locality Ahornenrus (today Malorrus) (2716.100/1192.700). For further descriptions see Styger (1961; Bodenbach section). Lithology: The Ahornen Member that occurs at different locations of Central and Eastern Switzerland is characterized by the appearance of greenish volcanic rock fragments in the sandstone. This is in contrast to the remaining members of the Muot-da-Rubi Formation, in which such fragments are absent. The base here often consists of slaty marlstone, which already belongs to the Stad Formation. Overyling strata: Taveyannaz Formation, tectonic boundary; underlying strata: Stad Formation, Malor Member (exceptionally). Biostratiography: ?Priabonian. Current geographical extent: Central and Eastern Switzerland: Reuss valley to Linth valley. Tectonic units: Central and Eastern Switzerland: Lower Helvetic.