Müschauns-Dolomit

Representation and status

Index

t5

Color CMYK

(0%,41%,100%,4%)

Color RGB

R: 245 G: 145 B: 0

Rank

lithostratigraphic Formation

Validity

Unit is in Use

Status

informal term

Nomenclature

Deutsch

Müschauns-Dolomit

Français

Dolomie du Val Müschauns

Italiano

Dolomia della Val Müschauns

English

Müschauns Dolomite

Origin of the Name

Val Müschauns (GR) - S-chanf

Historical Variants

Hauptdolomit = unternorisch (Hess 1953), membro inferiore dolomitico (Pozzi 1959), unternorischer Dolomit (Somm 1965), Münschauns-Dolomit [sic], Müschauns Dolomit (Furrer et al. 1985), unterer Dolomit = Müschauns-Dolomit (Dössegger 1987, Trümpy et al. 1997)

Description

Thickness

300-400 m (Hess 1953), 350 m (Pozzi 1959), 400 m (Furrer et al. 1985), bis 500 m (Trümpy et al. 1997

Hierarchy and sequence

Superordinate unit

• Hauptdolomit-Gruppe (Ostalpin)

Units at roof

• Quattervals-Formation

Units at floor

• Fanez-Formation

Upper boundary

Quattervals-Fm.

Lower boundary

Fanez-Fm. (Raibl-Gr.)

Age

Age at top

• Early Norian

Age at base

• Early Norian

Dating Method

Biostratigraphie mit Bivalven und Gastropoden (Furrer et al. 1985) ; vermutlich frühes Norien (Trümpy et al. 1997)

Geography

Type area

Engadiner Dolomiten (GR)

Palaenography and tectonic

Tectonic unit (resp. main category)

• Austroalpine

Kind of protolith

• sedimentary

Conditions of formation

"Shallow to intermediate subtidal." (Furrer et al. 1985)

References

Definition

Furrer Heinz (Ed.) (1985) : Field workshop on Triassic and Jurassic sediments in the Eastern Alps of Switzerland. Mitt. geol. Inst. ETH und Univ. Zürich (N.F.) 248, 81 S.