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

Kansay Formation

Kansay Fm

Period:

Cambrian

Age Interval:

Vendian-Lower Cambrian (?), N4

Province:
Nuratau

Type Locality and Naming

At Kansay, N. Nuratau Ridge. R.R. Usmakov in 1993 (Korsakov et al., 1993).

Synonym: Kansay Suite, Кансайская св.

Lithology and Thickness

Lower part of the section, mica-quartz, quartz-mica-sericite-chlorite slates predominate, representing metamorphosed siltstone (aleurolites) and pelites in the stilpnomelane-chlorite-muscovite subfacies.

Middle and Upper parts of the section are composed of clay-mica slates, alternating with siltstone (aleurolites), sandstones, and layers (up to 1 m) of gravelites.

Total formation thickness is more than 1000 m.

Lithology Pattern:

Sandy_claystone

Relationships and Distribution

Lower contact

The conditional Vendian-Lower Cambrian age is established (by R.R. Usmakov) based on stratigraphic position between the late Riphean deposits of the Suvliksay Fm

Upper contact

The overlying Zhivachisay Fm of the Middle-Upper Cambrian, characterized by organic remains.

Regional extent

Predominantly in the western part of the N. Nuratau Ridge. It is correlated with the Khodzhaakhmet Fm and Kurghantau Fm

GeoJSON

null

Fossils

Age

On the State Geol Map-500 of Uzbekistan (460), the Kansay Fm is conditionally referred to the Vendian-Lower Cambrian.

Age Span:

Beginning stage:

Ediacaran

Fraction up in beginning stage:

0.0

Beginning date (Ma):

635.00

Ending stage:

Guzhangian

Fraction up in the ending stage:

1.0

Ending date (Ma):

497.00

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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