Sardona-Decke
Représentation et statut
- Couleur CMYK
- N/A
- Couleur RGB
- R: 241 G: 239 B: 237
- Rang
- nappe
- Usage
- Ce terme est en usage.
- Status
- valide
Nomenclature
- Deutsch
- Sardona-Decke
- Français
- Nappe du Sardona
- Italiano
- Falda del Sardona
- English
- Sardona Nappe
- Origine du nom
-
Alp bzw. Piz Sardona (SG), Calfeisen(tal)
- Variantes historiques
-
Sardona unit (Lihou 1995), Sardona-Decke (den Brok et al. 2021), Sardona Nappe (TK500 / Gouffon et al. 2024)
- Remarques nomenclatoriales
-
Piz Sardona >>> du Sardona, mais Alpe de Sardona
Description
- Description
-
Ultrahelvetische Decke in infrahelvetische Stellung. Stratigraphisch durch seine durchgehende klastische Flyschfazies charakterisiert, mit dem Sardona-Quarzit als prominentem Leithorizont.
Hiérarchie et succession
- Unités sous-jacentes
- Limite supérieure
-
Lochsiten-Kalk, Subhelvetische Decken, Oberhelvetikum
- Limite inférieure
-
Blattengrat-Decke
Âge
- Âge au sommet
-
- Eocène moyen
- Âge à la base
-
- Crétacé Tardif
Paléogéographie et tectonique
- Paléogéographie
- domaine ultrahelvétique
- Termes génériques
- Type de protolithe
-
- tectonique
- Conditions de formation
-
Deep marine flysch deposits of Late Cretaceous to mid Eocene age (Lihou 1993, 1995).
Références
- Révision
-
(2024) :
Tectonic Map of Switzerland 1:500000, Explanatory notes. Federal Office of Topography swisstopo, Wabern
p.36: Three allochthonous units, which were emplaced in an early phase onto the future Helvetic domain (see p. 31), crop out in the area between Linthal and Sargans. They are composed mainly of Late Cretaceous to Paleogene sediments deposited in the very distal part of the Helvetic realm: Blattengrat and Bad Ragaz nappes of South Helvetic, Sardona Nappe of Ultrahelvetic affinity. The three units were subsequently truncated by the Glarus Thrust, which is the basal thrust of the Upper Helvetic subdomain, and simultaneously cut by out-of-sequence thrusts also involving both the basement and the cover of the Aar Massif (see § 4.1.1, Fig. 5).