Graniti dei Laghi

Représentation et statut

Couleur CMYK

(0%,0%,0%,100%)

Rang

unité lithostratigraphique

Usage

Ce terme est en usage.

Status

terme informel

Nomenclature

Deutsch

Laghi-Granit

Français

Granites des Laghi

Italiano

Graniti dei Laghi

English

Laghi Granites

Variantes historiques

Serie dei Laghi granites = Graniti dei Laghi (Boriani et al. 1990), plutoni granitici dei Laghi = graniti dei Laghi (Dal Piaz et al. 1992a)

Description

Description

Grande batolite composito.

Hiérarchie et succession

Unités hiérarchiquement subordonnées

• Granito di Biella-Valsessera
• Granito di Alzo-Roccapietra
• Granito di Quarna
• Granito di Baveno
• Granodiorite del Monte Orfano

Âge

Âge au sommet

• Permien

Âge à la base

• Permien

Géographie

Extension géographique

Dal Biellese alla Val d'Ossola.

Paléogéographie et tectonique

Termes génériques

• South Alpine

Type de protolithe

• plutonique

Références

Révision

Boriani A., Giobbi Origoni E., Borghi A., Caironi V. (1990) : The evolution of the "Serie dei Laghi" (Strona-Ceneri and Scisti dei Laghi): the upper component of the Ivrea-Verbano crustal section; Southern Alps, North Italy and Ticino, Switzerland. Tectonophysics 182, 103-118

The Serie dei Laghi is also the site of post-metamorphic igneous activity. represented by mafic to intermediate stocks and dykes. with acidic differentiates showing features similar to the appinites of Scotland and Ireland (Boriani and Sacchi. 1973; Boriani et al.. 1974a; Giobbi Origoni et al., 1988). and by epiplutonic granitic intrusions (Boriani et al.. 1988a). known as Graniti dei Laghi, of Permian age (about 275 Ma: Jaeger and Faul, 1959; Pastee!s, 1964; KoeppeL 1974; Koeppel and Gruenenfelder 1978/1979: Hunziker and Zingg, 1980; Pinarelli et al.. 1988). They are associated with mostly acidic volcanites of similar age.