Tomül-Decke

Torna a falda Tomül

Rappresentazione e statuto

Colore CMYK
(0%,1%,2%,5%)
Colore RGB
R: 241 G: 239 B: 237
Rango
falda
Uso
Unità in uso.
Status
valido
Discussione del statuto

Nomenclatura

Deutsch
Tomül-Decke
Français
Nappe du Tomül
Italiano
Falda del Tomül
English
Tomül Nappe
Origine del nome

Piz Tomül (GR), zwischen Vals und Safiental

Varianti storiche

Tomül-Teildecke (Kündig 1926a), Tomüllappen (Wilhelm 1933, Jäckli 1947, van der Plas 1959), digitation du Tomül (Trümpy 1970), Tomül-Lappen (Bolli et al. 1980), Tomül Nappe (Berger & Mercolli 2007)

Descrizione

Descrizione

Mächtige Abfolge des Walliser-Troges («nordpenninisch»), bestehend aus Bündnerschiefer, «Präflysch»- und Flysch-Ablagerungen.

Potenza
Rund 1600 m (Wyss & Wiederkehr 2017)

Gerarchia e successione

Unità di rango inferiore

Età

Geomorfologia
  • Cretacico
Età alla base
  • Cretacico

Geografia

Estensione geografica
Vom Nufenengebiet nach Norden zum Safiental, dann durch Viamala, Heinzenberg, Domleschg bis zum Stätzerhorn / Fulenberg.

Paleogeografia e tettonica

Paleogeografia
bacino Vallesano
Termini generici

Referenze

Revisione
Gouffon Yves (Editor) (2024) : Tectonic Map of Switzerland 1:500000, Explanatory notes. Federal Office of Topography swisstopo, Wabern

p.73: The Tomül Nappe, the highest of the “Bündnerschiefer” nappes rooting in the “Misox Zone”, locally has an ophiolite-bearing mélange at its base, overlain by an over 2 km-thick series of probably Cretaceous – Paleogene age (Steinmann 1994). In contrast with the Grava Nappe, the Tomül Nappe is not wrapped downwards around the front of the Adula Nappe. It can be followed eastward, below the Middle Penninic Schams Nappe Complex, and is then backfolded, together with the latter, around the front of the Suretta Nappe in order to come to lie in an overturned position on top of the Schams Nappe Complex in the upper limb of the Niemet-Beverin Backfold (Schreurs 1995, Schmid et al. 1997). This backfolded part of the Tomül Nappe is also referred to as “Arblatsch Flysch” (Ziegler 1956). East of Lenzerheide, the Tomül Nappe can be followed even further to the east and into the Prättigau Half-Window that exposes a very thick and multiply folded Cretaceous – Paleogene “Bündnerschiefer” and flysch sequence underlying the Middle Penninic Falknis and Sulzfluh nappes (Nänny 1948, Weh & Froitzheim 2001).

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