Unterpenninikum
Back to Lower PenninicRepresentation and status
- Color CMYK
- N/A
- Color RGB
- R: 241 G: 239 B: 237
- Rank
- tectonic domain
- Validity
- Unit is in Use
- Status
- valid
Nomenclature
- Deutsch
- Unterpenninikum
- Français
- Pennique inférieur
- Italiano
- Pennidico inferiore
- English
- Lower Penninic
- Historical Variants
-
série pennique inférieure (Argand 1911b), Tiefpenninikum (Staub 1942b, Büchi & Trümpy 1976), Tiefpenninische Decken = Lepontinischen Decken (Trümpy 1974), Untere Penninische Decken (Gruber et al. 2010), Pennidico inferiore (Della Torre & Maggini 2015), Lower Penninic Subdomain (TK500 / Gouffon et al. 2024)
Description
- Description
-
Die lithostratigraphische Einheiten die die unterpenninischen Decken bilden stammen paläogeographisch aus dem kretazisch-paläogenen Valais-Ozean. Die Überresten dieses Becken befinden sich jetzt an der Basis des penninischen Deckenstapel und wurden von Einheiten überschoben die ursprünglich weiter nach Süden abgelagert wurden.
Hierarchy and sequence
Palaenography and tectonic
- Paleogeography
- Valaisan Basin
- Tectonic unit (resp. main category)
-
(Internal) Lower Penninic of Western Switzerland
- Rank
- tectonic subdomain
- Status
- local name (informal)
- In short
-
In Western Switzerland, the internal part of the Lower Penninic subdomain is only represented by the Sion-Courmayeur Nappe, which extends along the entire front of the Penninic domain. Paleogeographically it corresponds to the oceanic Valaisan Basin, which was then incorporated in the subduction zone below the Middle Penninic units.
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Internal Lower Penninic of Eastern Switzerland
- Rank
- tectonic subdomain
- Status
- local name (informal)
- In short
-
In Eastern Switzerland, the internal part of the Lower Penninic subdomain is represented by metasedimentary, mostly shaly-calcareous units (so called “Bündnerschiefer”, incl. in the Prättigau Half-Window and the core of the Lower Engadine Window), deposited in the oceanic Valaisan Basin. Ophiolitic remnants are found at the base of some of the “Bündnerschiefer-type” nappes.