Neogene

Paleogene

Cretaceous

Jurassic

Triassic

Permian

Carboniferous

Devonian

Silurian

Ordovician

Cambrian

Neoproterozoic

Mesoproterozoic

Paleoproterozoic

Main source = Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian) Translated to English by the GeoGPT group, Zhejiang Lab, Hangzhou, China--see About

Vaush Formation

Vaush Fm

Period:

Silurian, Devonian

Age Interval:

Wenlock-Lower Devonian, N8

Province:
Nuratau

Type Locality and Naming

By the spring of Vaush, South Nuratau Ridge. I. A. Pyanova et al., 1986 (371, p.49-50). Stratotype in the area of the Vaush spring.

Synonym: Vaush Suite, Варшская св.

Lithology and Thickness

Quartz sandstones, mica-quartz sandstones with admixture of gravel material and phyllitic slates, albite-sericite-quartz slates with layers and packages of dolomites and dolomitized limestones. Thickness 450m.

Lithology Pattern:

Sandstone

Relationships and Distribution

Lower contact

Contacts with underlying rocks are unknown

Upper contact

With the overlying Sappensk Fm – tectonic

Regional extent

Southern foothills of the South Nuratau Ridge.

GeoJSON

null

Fossils

Contains stromatoporoids Ecclimadictyon cf. fastigiatum (Nich.), Ec. cf. pandum Nestor.,

Clavidictyon">Clavidictyon (?) sp.; amphiporoids - Paramphipora sp., Amphipora sp., Amphiporidae; corals - Scoliopora sp. ind.; fragments of rugose corals, characterizing the Early Silurian (Wenlock)–Late Silurian–Early Devonian age of the rocks.

Age

D.M. Ogarev et al. (1970), V.S. Korsakov et al. (1984) determined the age of these deposits as early Devonian; I.A. Pyanova et al. (1984; 371), V.S. Korsakov et al. (1993) and Strat. Sl. (443) - early Silurian (Wenlock) - early Devonian. N.I. Poznyakov et al. (1989) referred the carbonate deposits to the Devonian, the terrigenous part of the section - to the middle-late Ordovician by comparison with similar deposits of Kuldjuktau.

Age Span:

Beginning stage:

Sheinwoodian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

432.93

Ending stage:

Gorstian

Fraction up in the ending stage:

1.0

Ending date (Ma):

425.01

Depositional setting

Depositional pattern:

Additional Information

Compiler:

Z.M. Abdazimova – In: GeoGPT translation of: “Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian)”