Formazione dei Cavalli

Representation and status

Color CMYK

(0%,0%,11%,12%)

Color RGB

R: 225 G: 225 B: 200

Rank

lithostratigraphic Formation

Validity

Unit is in Use

Status

informal term

Nomenclature

Deutsch

Cavalli-Formation

Français

Formation des Cavalli

Italiano

Formazione dei Cavalli

English

Cavalli Formation

Origin of the Name

Alpe/Bacino dei Cavalli (Italia)

Historical Variants

Furgg-Serie (Wetzel 1972), Méta-arkose et métabasites de la zone de Furgg inférieure (Escher et al. 1987), Cavalli Formation = Furgg Permo-Carboniferous graywacke with basic boudins (Steck et al. 2015)

Hierarchy and sequence

Units at roof

• Formazione della Preja

Age

Age at top

• Permian

Age at base

• Permian

Dating Method

Bearth 1952, Wetzel 1972, Steck et al. 2015

Geography

Geographical extent

Valle di Loranco

Palaenography and tectonic

Kind of protolith

• sedimentary

References

Definition

Steck Albrecht, Masson Henri, Robyr Martin (2015) : Tectonics of the Monte Rosa and surrounding nappes (Switzerland and Italy): Tertiary phases of subduction, thrusting and folding in the Pennine Alps. Swiss J. Geosc. 108/1, 3-34

p.11: A complete section through the sedimentary sequence of

the Furgg series is exposed at the Passo della Preja (Fig. 6;

Steck et al. 2001). The layers of meta-graywacke, metaarkose, mica quartzite and micaschist with numerous amphibolite boudins, of the Cavalli Formation show a tectonic contact with the Antrona ophiolite.