Feldspar deformation in greenschist facies shear zones (Aar-Massif, Switzerland)
2006-03Universitätsverlag Göttingen
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11. Symposium "Tektonik, Struktur- und Kristallingeologie"
Hauten, Sarah; Handy, Mark R.; Dobmeier, Christoph, 2006-03: Feldspar deformation in greenschist facies shear zones (Aar-Massif, Switzerland). In: Philipp, S.; Leiss, B; Vollbrecht, A.; Tanner, D.; Gudmundsson, A. (eds.): 11. Symposium "Tektonik, Struktur- und Kristallingeologie"; 2006, Univ.-Verl. Göttingen, p. 84 - 85., DOI https://doi.org/10.23689/fidgeo-1848.
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Granitic gneisses of the Central Aar
Granite host a shear zone network
that formed at greenschist facies conditions.
The work area is located in
the Bächlital (Grimsel area, Central
Switzerland) and was chosen for the
analysis of shear zones because of the
weakly anisotropic fabric of the host
gneisses. Contrary to previous publications
(e.g. Choukroune & Gapais,
1983), none of these host rocks are undeformed.
They contain a penetrative
foliation (S1) that strikes consistently
ENE-WSW with a steep dip of around
70° to the south. This foliation is
overprinted by the aforementioned shear
zone network, which was the main focus
of this study...
Sammlung:
- Geologie [893]
Schlagworte:
AarmassivScherzone
Granitgneis
Feldspäte
Deformation <Geologie>
Gesteinsdeformation {Strukturgeologie}
Gefügekunde der Gesteine
Metamorphe Komplexe, Alpen {Petrologie}
Schweizer Alpen {Geologie}
Metamorphite aus sauren bis intermediären Edukten {Petrologie}
Produkte mechanischer Deformation {Petrologie}