«Schönbühl-Quarzit»

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Representation 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
Letsch Dominik, Winkler Wilfried, von Quadt Albrecht, Gallhofer Daniela (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.

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