Küssaburg-Member

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Representation and status

Index
-
CMYK Color
cf. Villigen-Formation
RGB color
R: 180 G: 190 B: 210
Rank
lithostratigraphic Member
Validity
Unit is in Use
Status
valid formal name
SCS note
-
SCS date
-
Comment
Das Küssaburg-Member geht im Kanton Aargau in das Wangen-Member über.

Nomenclature

German
Küssaburg-Member
French
Membre de la Küssaburg
Italian
Membro della Küssaburg
English
Küssaburg Member
Origin of the Name

Ruine Küssaburg / Küssaberg (Deutschland), SE Bechtersbohl (unteres Klettgau-Tal)

Historical Variants
Küssaburg-Schichten (Würtenberger & Würtenberger 1866), Küssaburgschichten (Hantke 1967), Küssaburg Member (Gygi 2000c)
Nomenclatorial Remarks
-

Synonyms

Synonyms
Non-synonyms
Possible confusion

Description

Description
"fossilarme, feinkörnige Bankkalke. Der oberste Abschnitt des Küssaburg Members ist Echinodermen-haltig (30%)" (Gygi 1969: 88)
Geomorphology
-
Thickness
32,5 m im Typusprofil (Gygi 2000c)

Components

Lithological content
  • limestone
Mineral content
-
Fossil content
  • echinoderms

Hierarchy and succession

Superordinate unit
Subordinate units
Units at roof
Units at floor
Hornbuck-Member
Lateral equivalents
Upper boundary
-
Lower boundary
Hornbuck-Mb.
Stratigraphic discussion
-

Age

Age at top
Oxfordian
Note about top
Bimammatum-Zone, Hauffianum-Subzone
Age at base
Oxfordian
Note about base
Bimammatum-Z., Hauffianum-Sz.
Dating method
Biostratigraphie: Ammoniten (Gygi & Persoz 1986)

Geography

Geographical extent
Klettgau bis zum Rhein (Übergang zum Wangen-Mb.).
Type area
Type locality
  • Ruine Küssaburg (Deutschland)
    Site particularities
    • historical site
    Site accessibility
    • mountain ridge
    Coordinates
    • (2668810 / 1272760)
    Note
    • SE Bechtersbohl, unteres Klettgau-Tal
Type profile
  • Steiggraben (Deutschland)
    Site particularities
    • typical facies
    Site accessibility
    • river bed
    Coordinates
    • (2670550 / 1273020)
    Note
    • 2 km E Küssaburg (Gygi 1991 Fig.4 Profil RG74, Gygi 2000c). Widerspruch Text und Fig. 2 in Gygi (2000b) bezüglich stratigraphischer Position des Crenularis Members.
Reference profiles
-
Point of interest
-

Paleogeography and tectonic

Paleogeography
Swabian Basin,
Kind of protolith
  • sedimentary
Conditions of formation
-
Sequence
-
Tectonic Unit (resp. main category)
Jura
  • Southern Germany
  • Black Forest
Metamorphism
non metamorphic
Metamorphic facies
-
Note on metamorphism
-

References

Definition
Würtenberger F. J., Würtenberger L. (1866): Der Weisse Jura im Klettgau und angrenzenden Randengebirg. , Verh. natw. Vereins Karlsruhe 2, 11-68

S.30
Revision
Gygi R. A. (2000): Annotated index of lithostratigraphic units currently used in the Upper Jurassic of northern Switzerland. , Eclogae geol. Helv. 93/1, 125-146

p.134: Küssaburg Member (Würtenberger & Würtenberger 1866) ; Member of the Villigen Formation Würtenberger & Würtenberger (1866. p. 30) introduced the name Küssaburg Member (Küssaburg-Schichten) for a succession of bedded, micritic limestones between the Hornbuck Member below and the Wangental Member above. The name is derived from the ruin of Küssaburg southeast of the village of Bechtersbohl in the lower Klettgau valley (southern Germany). LK 1050 Zurzach. There are only insignificant outcrops of the member below the Küssaburg ruin, but a continuous section could be measured in 1962 in the gully called Steiggraben 2 km southwest ofthe village of Geisslingen in the German lower Klettgau valley. This is section RG 74 at coordinates 670.550/273.020 which is less than 2 km east of Küssaburg ruin. The section is represented in Gygi (1991. Fig. 4) and can serve as type section of the Küssaburg Member. The thickness of the Küssaburg Member in the Steiggraben gullv is 32.5 m. Below is the glauconitic Crenularis Member with a sponge bioherm at the base. The top of the Küssaburg Member in the type section RG 74 is marked by the glauconitic bed 46 that belongs to the Knollen Bed. Ammonites are rare in the Küssaburg Member. Gygi & Persoz (1986. table 3 and Pl. 1) mentioned Taramelliceras (Metahaploceras) litocerum (Oppel) ofthe Hauffianum Subchron. Gygi (1969, p. 98 and Fig. 5) claimed to have found fragments of Subnebrodites in the Küssaburg Member. This is based on an error. There is a transition between the Küssaburg Member and the coeval Wangen Member of Canton Aargau. The boundary in figure 1 is drawn arbitrarily along the Rhine river that is the boundary between Switzerland and Germany north of Mellikon in Canton Aargau.

Important publications
  • Gygi R. A. (1969): Geologische Beschreibung des Aargauer-Jura und der nördlichen Gebiete des Kantons Zürich. , Beitr. geol. Karte Schweiz N.F. 136
  • Gygi R. A. (1969): Zur Stratigraphie der Oxford-Stufe (oberes Jura-System) der Nordschweiz und des süddeutschen Grenzgebietes. , Beitr. geol. Karte Schweiz N.F. 136, 143 S.

Material and varia

Applications
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