Malor-Member
Torna a Elvetico centraleRappresentazione 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
- Malor-Member
- Français
- Membre du Malor
- Italiano
- Membro del Malor
- English
- Malor Member
- Origine del nome
- Varianti storiche
-
Malorschichten (Frey 1965), Malor Member (Menkveld-Gfeller et al. 2016)
Descrizione
- Descrizione
-
Das Malor-Member besteht aus plattigen Mergeln mit eingeschalteten, feinen Sandstein- und Glimmersandsteinlagen. In den Sandsteinen können lokal Graduierung und Parallellamination beobachtet werden. Die Matrix ist kalkig, kann aber lokal auch silifiziert sein. In den obersten Lagen des Members treten Fragmente von karbonatisierten Andesiten auf.
- Potenza
- Wenige Zentimeter bis 15-25 m (Frey 1965), 30-40 m (Menkveld-Gfeller et al. 2016).
Gerarchia e successione
- Unità sovrastante
- Limite superiore
-
Ahornen-Member
- Limite inferiore
-
Globigerinenschiefern = Stad-Formation
Età
- Geomorfologia
-
- Priaboniano
- Età alla base
-
- Priaboniano
- Metodo di datazione
-
Biostratigraphie: Grossforaminiferen
Geografia
- Estensione geografica
- Zentral- und Ostschweiz (Klausenpass bis Linthtal).
- Località-tipo
-
-
Ahornenrus = Malorrus (GL)
Caratteristiche del sito- typische Fazies
- Grat
- (2716150 / 1192700)
- Frey 1965, Menkveld-Gfeller et al. 2016
-
Ahornenrus = Malorrus (GL)
Paleogeografia e tettonica
-
- Paleogene del Elvetico
- 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 Malor Member was described by Frey (1965; ‘‘Malor-Schichten’’) at its type locality Ahornenrus [today Malorrus] (2716.150/1192.700).
Lithology: The Malor Member emanates from the Stad Formation by inserting fine-grained sandstone- and micaceous sandstone layers. Also, sandy limestone beds repeatedly occur in alternation with slaty marlstone.
Gradation and parallel lamination can be seen locally in the sandstones. The matrix is calcareous but can also be siliceous locally (oily gloss). In the highest layers, scattered fragments of carbonated andesite occur. The entire thickness is approx. 30–40 m. Overyling strata: Ahornen Member; underlying strata: Stad Formation. Biostratigraphy: Priabonian, Larger foraminifera. Current geographical extent: Central and Eastern Switzerland: Klausenpass to Linth valley. Tectonic units: Central and Eastern Switzerland: Lower Helvetic.