Quarzdiorite del Monte Bassetta

Representation and status

Color CMYK

(0%,100%,82%,12%)

Color RGB

R: 225 G: 0 B: 40

Validity

Unit is in Use

Status

valid formal name

Nomenclature

Deutsch

Monte-Bassetta-Quarzdiorit

Français

Quarzdiorite du Monte Bassetta

Italiano

Quarzdiorite del Monte Bassetta

English

Monte Bassetta Quarzdiorite

Origin of the Name

Monte Bassetta (Italia)

Historical Variants

diorite / gneiss dioritico del Monte Bassetta (Repozi 1915 S.46), granodiorite del Monte Bassetta (Godenzi 1963), Quarzdiorite del Monte Bassetta (Sciesa 1991)

Nomenclatorial Remarks

serizzo auct., Bergell-Tonalit, Masino-Tonalit

Links

Synonyms

Tonalite della Bregaglia (serizzo)

Hierarchy and sequence

Subordinate units

• Granodiorite dell'Alpe Cameraccio

Age

Age at top

• early Oligocene

Age at base

• early Oligocene

Dating Method

--- (von Blanckenburg 1992), 32.9-28 Ma (U/Pb - Zirkon, Th/Pb - Allanit) im Westen, 31.5 +/-0.35 Ma (Th/Pb - Allanit) oder 31.88 +/-0.09 Ma (U/Pb - Zirkon) im Osten (Hansmann 1996), --- (Oberli et al. 2004)

Palaenography and tectonic

Tectonic unit (resp. main category)

• Bregaglia

Kind of protolith

• plutonic