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

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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)”