«Gneiss Minuti»

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Representation and status

Color CMYK
(0%,0%,0%,100%)
Color RGB
R: 240 G: 200 B: 200
Rank
lithostratigraphic unit
Validity
Unit is in Use
Status
informal term

Nomenclature

Deutsch
«Gneiss Minuti»
Français
«Gneiss Minuti»
Italiano
«Gneiss Minuti»
English
«Gneiss Minuti»
Origin of the Name

= gneiss à grain fin

Historical Variants

Gneiss Minuti (Gastaldi 1871, Gastaldi 1874, Dal Piaz et al. 1972, Compagnoni et al. 1977), Gneiss albitiques (Comes 1975), "Gneiss Minuti" complex (Compagnoni et al. 1977), gneiss minuti (Dal Piaz et al. 1992a)

Description

Description

albite-white mica gneisses and schists ; Métagranitoïdes et granodiorites, associés à des roches rubanées d'origine volcano-sédimentaire probable (Comes 1975)

Hierarchy and sequence

Geography

Geographical extent
Val d'Aoste.

Palaenography and tectonic

Paleogeography
Adriatic passive continental margin :
southern continental margin / platform
Tectonic unit (resp. main category)
Metamorphism
polycyclic
Metamorphic facies
  • greenschist facies (epizone)
  • eclogite facies
Note on metamorphism

Im NW der Sesia Zone werden die Hochdruckparagenesen sukzessive von jüngeren

grünschieferfaziellen Paragenesen verdrängt, so daß in den externen Anteilen

("Gneiss Minuti") die Gesteine nur noch in vereinzelten Relikten die Einflüsse einer

Hochdruckmetamorphose belegen (Compagnoni et al. 1977; Richter 1983;

Venturini 1995).

References

Definition
Gastaldi B. (1871) : Studi geologici sulle Alpi Occidentali - Parte I. Memorie del Regio Comitato Geologico Italiano 1, 1-47
  • Ortogneiss della falda di Sesia

    Rank
    lithostratigraphic Formation
    Status
    incorrect name (though informally used)
    In short

    Metagranitoïdes du complexe des "Gneiss Minuti".

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