«Schönbühl-Quarzit»
Back to Glarus Nappe ComplexRepresentation and status
- Color CMYK
- (0%,0%,0%,100%)
- Rank
- lithostratigraphic Member (Subformation)
- Validity
- Unit is in Use
Nomenclature
- Deutsch
- «Schönbühl-Quarzit»
- Français
- «Quartzite de Schönbühl»
- Italiano
- «Quarziti di Schönbühl»
- English
- «Schönbühl Quartzite»
- Origin of the Name
-
Schönbühl = Schönbüel (GL), Plateau zwischen Spitzmeilen und Rotgandwand
- Historical Variants
-
Grenzquarzit, Schönbüel-Quarzit, Schönbüel quartzites (Letsch et al. 2015), Schönbühl-Quarzit (Löpfe et al. 2018)
Age
- Age at top
-
- Guadalupian (= Middle Permian)
- Age at base
-
- Guadalupian (= Middle Permian)
- Dating Method
-
Ca. 268 Ma (Letsch et al. 2014)
References
- Definition
-
(2015) :
The volcano-sedimentary evolution of a post-variscan intramontane basin in the Swiss Alps (Glarus Verrucano) as revealed by zircon U-Pb age dating and Hf isotope geochemistry. International Journal of Earth Sciences (Geologische Rundschau) 104, 123–145
... three very prominent, reddish-white, feldspar- and quartz-rich layers, each between 0.5 m and 4 m thick which were identified by Ryf (1965) as partly reworked rhyolitic tuff layers.