Falda del Tambò

Representation and status

Color CMYK

(0%,1%,2%,5%)

Color RGB

R: 241 G: 239 B: 237

Rank

nappe

Validity

Unit is in Use

Status

valid

Nomenclature

Deutsch

Tambò-Decke

Français

Nappe du Tambò

Italiano

Falda del Tambò

English

Tambò Nappe

Origin of the Name

Pizzo Tambo (GR)

Historical Variants

Tambodecke (Heydweiller 1918, Kündig 1926a, Staub 1934, Gansser 1937a, Strohbach 1965, Weber 1966), Falda Tambò (Godenzi 1963), Tambo nappe = Tambo Nappe (Gulson 1973), Tambo-Decke = lembo di ricoprimento del Tambo (Schmutz 1976), falda Tambò (Sciesa 1991), nappe du Tambo (Mayerat Demarne 1994), Tambo Nappe (TK500 / Gouffon et al. 2024)

Nomenclatorial Remarks

cf. Marquer et al. 1994, Marquer & Peucat 1994

Description

Description

Mittelpenninische Decke der Südostschweiz und Norditalien.

schistes lustrés, prasinites, lame d'orthogneiss et dolomies (Gadriol-Zug)

Hierarchy and sequence

Subordinate units

• Zona di Andrana

Geography

Geographical extent

Südostschweiz und Norditalien (Lanzada Fenster).

Palaenography and tectonic

Paleogeography

Briançonnais Terrane :

microcontinent briançonnais

Tectonic unit (resp. main category)

• Tambo

Kind of protolith

• tectonic

Metamorphism

polycyclic

References

Definition

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

p.75: The crystalline basement of the Tambo Nappe is made up of polymetamorphic paragneisses intruded by the Permian Truzzo Granite that escaped Paleozoic deformation and metamorphism. This basement is unconformably overlain by a Permian – Mesozoic cover roughly comparable to the Briançonnais facies of the Barrhorn (Siviez-Mischabel Nappe) and Vanoise series (Baudin et al. 1993).

Important Publications

Gansser Augusto (1937) : Der Nordrand der Tambodecke ; Geologische und petrographische Untersuchungen zwischen San Bernardino und Splügenpass. Schweiz. mineral. petrogr. Mitt. 17, 291-523

Weber W. (1966) : Zur Geologie zwischen Chiavenna und Mesocco. Mitt. geol. Inst. ETH u. Univ. Zürich [N.F.] 57

Schmutz Hans-Ulrich (1976) : Der Mafitit-Ultramafitit-Komplex zwischen Chiavenna und Val Bondasca (Provinz Sondrio, Italien; Kt. Graubünden, Schweiz). Beitr. Geol. Karte Schweiz N.F. 149