Membre de Langy

Zurück zu Niesen-Decke

Darstellung und Status

Farbe CMYK
(0%,11%,26%,31%)
Farbe RGB
R: 175 G: 155 B: 130
Rang
lithostratigraphisches Member (Subformation)
Gebrauch
Element ist in Gebrauch
Status
gültiger formeller Begriff

Nomenklatur

Deutsch
Langy-Member
Français
Membre de Langy
Italiano
Membro di Langy
English
Langy Member
Herkunft des Namens

Plan du Langy (VD) - Ormont-Dessous

Historische Varianten

Grès de Langy (Badoux & Homewood 1978, Badoux & Gabus 1991), Langy member (Ringgenberg et al. 2001)

Beschreibung

Mächtigkeit
40 m (Badoux & Gabus 1991)

Hierarchie und Abfolge

Übergeordnete Einheit

Alter

Alter Top
  • Bathonien
Alter Basis
  • Bathonien
Datierungsmethode

Foraminifères: Protopeneroplis striata (Weynschenk), Archeosepta platierensis (Wernli) [Badoux & Homewood 1978]

Geografie

Typusregion
Vallée de la Grande Eau, entre Le Sépey et la Forclaz

Paläogeografie und Tektonik

Herkunftstyp
  • sedimentär

Referenzen

Neubearbeitung
Ringgenberg Yann, Tomassi Alexander, Stampfli Gérard M. (2001) : The Jurassic sequence of the Niesen nappe in the region of Le Sépey - La Forclaz (Swirtzerland): witness of the Piemont rifting in the Helvetic paleogeographic domain. Bull. Soc. vaud. Sci. nat. 87/4, 353-372

p.360: 2.1.6. Langy member (Bathonian) The base and the middle part of this member consist of decimetric beds of coarse calcareous sandstones and argillaceous intercalations. The rest is made of metric to decametric grain flows of coarse calcareous sandstones and calcareous microconglomerates without intercalations. The elements are quartz and feldspars and contain up to 30% of limestone clasts, mainly ooliths with quartz and feldspar cores but also echinodermic fragments and foraminifera (Protopeneroplis striata and Archeosepta platierensis) which indicate a Bathonian age. In the microconglomerates, the detritic fragments are very diversified: gneiss, quartzites, dolomites, black limestones, volcanoclastic rocks and some rhyolites.

zum Anfang der Seite