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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Beshkap Formation

Beshkap Fm

Period:

Cretaceous

Age Interval:

Upper Albian (K₁²), C1, C1a, C1b, C1c

Province:
Central W Tajik

Type Locality and Naming

Includes in Hisar-Zarafshan ranges, and Obisafit, Turkparidin, Chakykalya typesections

(Dzhalilov et al., 1971)

Synonym: Beshkapskaya suite, бешкапинская свита

Reference section:

Lithology and Thickness

It is composed of greenish-gray sandstones and siltstones with layers of limestone. The thickness is 10-14 m.

In regions Turkestan, Zarafshan-Gissar, South Gissar, Karategin, Dushanbe, Qafirnigan, Vakhsh, Zaalai and Darvaz districts, the considered horizon corresponds to the Shirabad Fm (Andreeva, 1966), composed of gypsums with interlayers of red-colored argillaceous siltstones.

Lithology Pattern:

Sandy limestone

Relationships and Distribution

Lower contact

At the base of the suite, there are massive gray-green sandstones. They conformably or with slight erosion overlie the deposits of Berriasian, Middle Aptian or Upper Hauterivian - Middle Aptian.

Upper contact

At the top of the suite, there are massive gray-green sandstones. They are conformably overlain by the deposits of the Cenomanian and Turonian.

Regional extent

In regions Turkestan, Zarafshan-Gissar, South Gissar, Karategin, Dushanbe, Qafirnigan, Vakhsh, Zaalai and Darvaz districts, the considered horizon corresponds to the Shirabad Fm (Andreeva, 1966).

GeoJSON

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Fossils

Age

Upper Albian

Age Span:

Beginning stage:

Albian

Fraction up in beginning stage:

0.8

Beginning date (Ma):

103.04

Ending stage:

Albian

Fraction up in the ending stage:

1.0

Ending date (Ma):

100.50

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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