Massa-Gneiskomplex
Back to Aar MassifRepresentation and status
- Index
- GM-M
- Color CMYK
- (0%,24%,30%,2%)
- Color RGB
- R: 250 G: 190 B: 175
- Rank
- lithostratigraphic Formation
- Validity
- Unit is in Use
- Status
- informal term
Nomenclature
- Deutsch
- Massa-Gneiskomplex
- Français
- Complexe gneissique de la Massa
- Italiano
- Complesso gneissico della Massa
- English
- Massa Gneiss Complex
- Origin of the Name
- Historical Variants
-
Hauptmigmatitzone von Gletsch (Niggli 1965a), Massa Gneiss Complex (Berger et al. 2017)
Geography
- Geographical extent
- Zwischen Baltschiedertal und Oberalppass.
- Point of interest
-
-
St. Niklaus (VS) im Obergoms
Site particularities- spezielle Fazies
- Strassenanschnitt / Bahnanschnitt
- (2670670 / 1154910)
- Injektionseruptivbreccien (GFS 1934)
-
St. Niklaus (VS) im Obergoms
References
- Definition
-
(2017) :
Geological Map of the Aar Massif, Tavetsch and Gotthard Nappes. Geological Special Map 1:100'000, Explanatory Notes 129
p.25: The migmatite and migmatitic gneiss forming the Massa Gneiss Complex are common in the Ausserberg-Avat Zone and show different aspects. In particular, the association of leucocratic migmatitic gneisses with mafic to ultramafic rocks (amphibolites, gabbroic rocks, hornblendites) is widespread (LABHART 1965, NIGGLI 1965, STECK 1966). This produces banded assemblages strongly resembling the sequences found in the Ofenhorn-Stampfhorn Gneiss Complex of the Sustenhorn Zone (ABRECHT 1994).