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

Tashgezek Formation

Tashgezek Fm

Period:

Carboniferous

Age Interval:

Visean-Serpukhovian, CK9, CK9b

Province:
Chatkal-Kuramin Region

Type Locality and Naming

Along the Tashgeze Mountain, Kuramin Ridge. O.I.Sergun'kova, 1959 (382, p. 65, table 7). Stratotype on Tashgeze Mountain.

Synonym: Tashgezekskaya Suite, Ташгезекская св.

Lithology and Thickness

Light, medium-thick-bedded, biosparitic, often crinoidal limestones. Thickness up to 200 m.

Lithology Pattern:

Limestone

Relationships and Distribution

Lower contact

Lies conformably on the Sallyatash Fm

Upper contact

In the most complete sections (Mysykkol, Yangikan) conformably overlain by sedimentary-volcanogenic formations of the Myshikkol Fm

Regional extent

Kuramin Ridge, Altyntopkan, Baraktyntau, Takeli Mountains.

GeoJSON

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Fossils

Contains foraminifera - Archaediscus baschkiricus Krest. et Theod., A. krestovnikovi Raus., Eostaffella ikensis Viss., brachiopods Gigantoproductus latissimus Sow.; conodonts - Gnathodus girtyi Hass., G. bilineatus Roun.

Age

Belongs to the upper substage of the Visean stage, Serpukhovian stage of the Lower Carboniferous.

Age Span:

Beginning stage:

Visean

Fraction up in beginning stage:

0.7

Beginning date (Ma):

335.26

Ending stage:

Serpukhovian

Fraction up in the ending stage:

1.0

Ending date (Ma):

323.40

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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