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

Tansaray Formation

Tansaray Fm

Period:

Ordovician

Age Interval:

Middle-Upper Ordovician (?), N8

Province:
Nuratau

Type Locality and Naming

Along the Tansaray gorge, Karatau Mountains, South Nuratau ridge. I.A.Pyanovskaya in 1984 (371, p.50).

Synonym: Tansaray Suite, Тансарайская св.

Lithology and Thickness

Polymictic sandstones and sandy siltstone (aleurolites) of various grain sizes (from fine to gravel), with subordinate amounts of siliceous-chlorite, chlorite-sericite, quartz-chlorite slates. A characteristic feature of the suite is the bluish-greenish color of the rock. Up to 350-800 m.

Lithology Pattern:

Fine-grained sandstone

Relationships and Distribution

Lower contact

The relationships with the underlying and overlying strata are tectonic.

Upper contact

The relationships with the underlying and overlying strata are tectonic.

Regional extent

In the form of tectonic scales and blocks in the western part of the South Nuratau ridge, Karatau Mountains, Tansaray gorge area, Saidpalych, east of the Karakarga pass. The most significant fragment of the section is in the Tansaray gorge area. It is an analogue of the Kaltadavan Fm.

GeoJSON

null

Fossils

Contains Paleozoic chitinozoa, the determination of which requires clarification.

Age

The age is conditionally middle-late Ordovician Along the correlation with the Kaltadavan suite. I.A.Pyanovskaya et al. (371) and in the Stratigraphic Lexicon (443) dated the age to the late Silurian-early Devonian. R.R.Usmanov (Korsakov et al., 1993) refers these deposits to the Chashmin Fm and attributes them to the Vendian-lower Cambrian.

Age Span:

Beginning stage:

Dapingian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

471.26

Ending stage:

Darriwilian

Fraction up in the ending stage:

1.0

Ending date (Ma):

458.18

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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