Cenozoic

Cretaceous

Jurassic

Triassic

Permian

Carboniferous

Devonian

Silurian

Ordovician

Cambrian

Neoproterozoic

Main source = Baratov, R.B., et al. (1976). Subdivisions of stratified and intrusive rocks of Tajikistan. Publishing House "Donish", Dushanbe, 269 pp. plus tables. Provided by Dr. Jovid Aminov, Nazarbayev University, Astana, Kazakhstan Translated to English by the GeoGPT group, Zhejiang Lab, Hangzhou, China--see About

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Jetimtau Formation

Jetimtau Fm

Period:

Cretaceous

Age Interval:

Upper Albian (K₁²), C2, C2a

Province:
Central W Tajik

Type Locality and Naming

Includes in Dushanbe-west Shirkent-Luchob, east Shirkent-Luchob

Synonym: Jetimtausk suite, джетымтауская свита, Akkapchigai horizon, Аккапчиrай'ский горизонт

Reference section:

Lithology and Thickness

It consists of interbedded variegated sandy-aleurolite-clay rocks with a thickness of 30-90 m.

Lithology Pattern:

Sandy_claystone

Relationships and Distribution

Lower contact

They conformably or with slight erosion overlie the deposits of Berriasian, Middle Aptian or Upper Hauterivian - Middle Aptian.

Upper contact

They are conformably overlain by the deposits of the Cenomanian and Turonian.

Regional extent

In the Zeravshan-Gissar, Karategin, Vakhsh, Zaalaik, and Darvaz districts, this formation corresponds to Akkapchigai horizon

GeoJSON

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Fossils

The above-mentioned lithology in which sharply impoverished organic remains similar to those found in the Akkapchigai Fm, as well as remains of brackish water ostracods (Andreev, 1969b; Dzhalilov, 1971) have been discovered.

Age

Upper Albian

Age Span:

Beginning stage:

Albian

Fraction up in beginning stage:

0.35

Beginning date (Ma):

108.76

Ending stage:

Albian

Fraction up in the ending stage:

0.6

Ending date (Ma):

105.58

Depositional setting

Brackish water

Depositional pattern:

Additional Information

Compiler:

Extracted from Baratov, R. B. (1976). Subdivisions of stratified and intrusive rocks of Tajikistan. Donish, Dushanbe, 276.