Kaensuy Formation

Kaensuy Fm

Period:

Permian

Age Interval:

Lower Permian (Asselian), CK5a

Province:
Chatkal-Kuramin Region

Type Locality and Naming

Along the Kaensu River, Chatkalsky ridge. I.I. Voitovich, I.V. Garapko et al. in 1965 (460, pp. 213-214)

Synonym: Kaensuyskaya Suite, Kaensui Suite, Каенсуйская св.

Lithology and Thickness

Polymictic sandstones, siltstone (aleurolites), claystones, small-pebble conglomerates and gravels, includes reefs of foraminiferal limestones. Thickness 300-500m.

Lithology Pattern:

Clayey sandstone

Relationships and Distribution

Lower contact

It conformably overlies the Kattaburabel Fm

Upper contact

Rarely with a slight unconformity, and is unconformably overlain by the Shurabsay Fm (Manakam Fm) (291; 443; 460).

Regional extent

Chatkalsky ridge, Kassan-Karaterek district.

GeoJSON

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Fossils

In the limestones, foraminifers - Rugosofusulina postprisca Bensh, T. paracomplicata Bensh, Schwagerina moelleri Raus. and others of early Permian (Asselian) age, in terrigenous rocks, plant remains - Calamites sp., Cordaites ex gr. principalis (Germ.), Ullmannia frumentaria (Schloth.) and others.

Age

Lower Permian (Asselian)

Age Span:

Beginning stage:

Asselian

Fraction up in beginning stage:

0.5

Beginning date (Ma):

296.21

Ending stage:

Asselian

Fraction up in the ending stage:

1.0

Ending date (Ma):

293.52

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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