Complesso di Isorno-Bellinzona
Rappresentazione e statuto
- Colore CMYK
- (0%,2%,2%,3%)
- Colore RGB
- R: 247 G: 241 B: 243
- Rango
- falda
- Uso
- Unità non usata
- Status
- valido
Nomenclatura
- Deutsch
- Isorno-Bellinzona-Komplex
- Français
- Complexe d'Isorno-Bellinzona
- Italiano
- Complesso di Isorno-Bellinzona
- English
- Isorno-Bellinzona Complex
- Varianti storiche
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Bosco-Isorno-Orselina zone (Steck 2008), Bosco, Bombogno, Isorno and Orselina-Bellinzona zones (Gouffon et al. 2024)
Descrizione
- Descrizione
-
root zone of Simano and Adula nappes (Vogel & Voll 1976)
... caractérisée par la présence de nombreux corps ultramafiques.
Gerarchia e successione
- Unità di rango inferiore
Geografia
- Estensione geografica
- [kommt auf den GA25-Blättern 159_Locarno und XXX_Comologno vor]
Referenze
- Revisione
-
(2024) :
Tectonic Map of Switzerland 1:500000, Explanatory notes. Federal Office of Topography swisstopo, Wabern
p.49: The Bosco, Bombogno, Isorno and Orselina-Bellinzona zones include various rocks (micaschists, para- and orthogneisses, calcschists, marbles, amphibolites and few ultramafics), probably Paleozoic and Mesozoic in age, which can locally be interpreted as a mélange. The Bosco and the Bombogno zones appear between the Antigorio and Monte Leone nappes in the large polyphase Alpe Bosa-Wandfluhhorn Fold located between the Maggia and Antigorio valleys. In the southern part of the eastern (upper) limb of this fold, these two units have not been distinguished and are grouped together in the Isorno Zone.
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Zona dell'Isorno
- Name Origin
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Bassa Valle dell'Isorno (Italia), Crevadossola [non: Fiume Isorno (TI), Valle Onsernone]
- Rango
- zona tettonica
- Statuto
- termine locale (informale)
- In breve
-
The Isorno Zone (Western Lepontic) corresponds to the Bosco and Bombogno zones in the southern part of the eastern (upper) limb of the large polyphase Alpe Bosa-Wandfluhhorn Fold (located between the Maggia and Antigorio valleys), where these two zones cannot be distinguished. It consists of a very heterogeneous series of para- and orthogneisses, amphibolites, meta-gabbros, ultramafites, calc-schists and marbles that underwent an Oligocene amphibolite facies metamorphism.
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Zona di Bellinzona
- Name Origin
- Rango
- zona tettonica
- Statuto
- valido
- Nomenclatorial Remarks
- <p>Tonerdesilikatgneise von Bellinzona = Adergneise = Injektionsgneise (Gutzwiller 1914)</p>
- In breve
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Fein- bis mittelkörnigen (Hornblende)-Biotit-Plagioklas-Gneissen und Amphiboliten, sowie Linsen (cm- bis km-Bereich) von sauren granitoiden Plagioklas-Kalifeldspat-Gneissen bis zu Ultramafititen und Marmoren.