Couches de Movelier

Rappresentazione e statuto

Colore CMYK

siehe Hauptrogenstein

Colore RGB

R: 200 G: 175 B: 125

Rango

Strato litostratigrafico

Uso

Unità in uso.

Status

termine informale

Discussione del statuto

Bei Gonzalez (1993) als Formationsglied [= Member] definiert.

Nomenclatura

Deutsch

Movelier-Schichten

Français

Couches de Movelier

Italiano

Strati di Movelier

English

Movelier Beds

Origine del nome

Movelier (JU) ; [parfois aussi occurence de Terebratula movelierensis Mühlberg]

Varianti storiche

Marnes grises de Movelier à Hemicidaris Luciensis (Greppin 1866, Greppin 1870), Marnes grises de Movelier = Movelier-Schichten (Mühlberg 1900), Marne du Furcil [sic] (Favre 1906), Movelierschichten (Disler 1941, Bartholet 1964), Movelierensis-Schichten (Enst 1991), Movelier-Schichten = Terebratula-Mergel (Schmassmann 1945), Movelier-Schichten (Gonzalez 1993), Movelier Beds (Gonzalez & Wetzel 1996)

Nota sul nome

+ Glauser 1936, Suter 1976 + Marnes grises de Movelier à Hemicidaris luciensis

Descrizione

Descrizione

Mergel mit linsenförmigen Kalkbänken. Reich an biogenen Komponenten: Korallen, Brachiopoden, Mollusken. Mehrere Meter mächtige Folge heller grobbiodetritischer Kalkbänke und weisser Mergellagen mit Terebrateln, deren oberste zahlreiche, bis 2cm grosse Onkoide enthält.

Potenza

Max. 1 m (Gonzalez & Wetzel 1996). Faible épaisseur d'env. 3–5 m (Fischer et al. 1971), voire max. 10–20 m dans la région du Chasseral (Aufranc et al. 2017).

Componenti

• ammoniti
• terebratulidi
• crinoidi
• bivalvi

Gerarchia e successione

Unità di rango superiore

• Hauptrogenstein [CH]

Unità di rango inferiore

• Oolite de Movelier
• Marne de Pouillerel

Unità sovrastante

• Pierre Blanche (Hauptrogenstein)
• «Grober Oolith»
• «Spatkalk» (des Hauptrogensteins)

Unità sottostante

• Oberer Teil des Hauptrogensteins

Limite superiore

D'Est en Ouest: Spatkalk, Grobe Oolith, ou Pierre Blanche.

Età

Geomorfologia

• Bajociano tardo

Età alla base

• Bajociano tardo

Osservazioni sulla base

Fin de la Zone à Parkinsoni (Gonzalez & Wetzel 1996).

Metodo di datazione

Ammoniten: The basal Movelier Beds were deposited during the latest Parkinsoni Zone as indicated by several finds of Parkinsonia planulata Quenstedt and Parkinsonia parkinsoni Sowerby. A few fossils document that the upper Movelier Beds could be of earliest Bathonian age (e.g. Prinsonia sp., from Les Malettes, Canton Jura). However, these finds have all been made by private collectors and are not exactly located in sections (Gonzalez & Wetzel 1996).

Geografia

Sezione-tipo

• Route de Movelier à Soyhières (JU)
  Agibilità del sito
  • verschwundener Aufschluss
  Coordinate
  • (2590500 / 1250300)
  Nota
  • Localité-type historique (Greppin 1870).

Sezione di riferimento

• La Haute Joux (JU), près de Movelier
  Caratteristiche del sito
  • typische Fazies
  Coordinate
  • (2593250 / 1250400)
  Nota
  • Affleurements meilleurs qu'à la localité-type historique selon Gonzalez (1993).

Paleogeografia e tettonica

• Dogger

Termini generici

• Jura :
  Juragebirge

Tipo di origine

• sedimentaria

Condizioni di formazione

On top of the hardground that sealed the Upper Oolitic Series, a diverse fauna lived in marly background sediments (Movelier Beds). The substitution of oolites by marls was interpreted by Gonzalez (1996) as a relative highstand of sea-level. The sedimentation was controlled by storms in bathymetrically deeper areas in the east and west and might have been influenced by tides in some areas in the western and central Jura (Gonzalez 1993). The dominant transport directions were again from north to south, showing a dominance of ebb-tides. In some western areas coral agglomerations occur. (Gonzalez & Wetzel 1996).

Metamorfismo

non metamorfo

Referenze

Definizione

Greppin (1866) : Tableau des terrains géologiques du Jura Suisse. Actes de la Société jurassienne d'émulation 18, 131-156

p.146: Marnes grises, blanchâtres, jaunâtres, très-fossilifères. (3 m.)

Revisione

Gonzalez R., Wetzel A. (1996) : Stratigraphy and paleogeography of the Hauptrogenstein and Klingnau Formations (middle Bajocian to late Bathonian), northern Switzerland Eclogae geol. Helv. 89/2, 695-720

p.709: The up to 1 m thick Movelier Beds form the base of the third shallowing-upward succession (Fig. 4; values included in Fig. 5c). They consist of marls alternating with lenticular limestones, both rich in complete as well as destroyed biogenous components, such as corals, brachiopods and mollusks.