Ghölzwald-Member

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Representation and status

Color CMYK
(0%,8%,51%,4%)
Color RGB
R: 245 G: 225 B: 120
Rank
lithostratigraphic Member (Subformation)
Validity
Unit is in Use
Status
valid formal name

Nomenclature

Deutsch
Ghölzwald-Member
Français
Membre du Ghölzwald
Italiano
Membro del Ghölzwald
English
Ghölzwald Member
Origin of the Name

Ghölzwald (GL), N Stelli

Historical Variants
Ghölzwaldschichten (Frey 1965), Ghölzwald Member (Menkveld-Gfeller et al. 2016)

Description

Description
Das Ghölzwald-Member besteht aus einem glimmerreichen, sandigen Kalk und einem kalkigen, glimmerreichen Sandstein.
Thickness
Ein paar Meter (Menkveld-Gfeller et al. 2016).

Hierarchy and sequence

Upper boundary
Tektonischer Kontakt
Lower boundary
Stad-Formation

Age

Age at top
  • Priabonian
Age at base
  • Priabonian

Geography

Geographical extent
Zentralschweiz (Linthtal).
Type locality

Palaenography and tectonic

  • Tertiary
Tectonic unit (resp. main category)
Kind of protolith
  • sedimentary
Metamorphism
non metamorphic

References

Definition
Menkveld-Gfeller Ursula, Kempf Oliver, Funk Hanspeter (2016) : Lithostratigraphic units of the Helvetic Palaeogene: review, new definition, new classification. Swiss J. Geosc. 109/2, 171-199

p.188: The Ghölzwald Member was described by Frey (1965; ‘‘Ghölzwald-Schichten’’), the type locality is at Ghölzwald, Stelli (2717.430/1194.250). Lithology: Above the slaty marlstone of the Stad Formation follow few dm- thick beds of micaceous sandy limestone and calcareous, mica-rich sandstone. Occasionally, a weak gradation can be observed. The overall thickness of the sandy part sums up to only a few meters. Overlying strata: tectonic boundary; underlying strata: Stad Formation. Biostratigraphy: Priabonian, Larger foraminifera. Current geographical extent: Central Switzerland: Linth valley. Tectonic unit: Central Switzerland: Lower Helvetic.
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