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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Muzrabat Formation

Muzrabat Fm

Period:

Cretaceous

Age Interval:

Upper Turonian (K₂¹), K1, D1, C2, C2a

Province:
SW Tajik, North Tajik, Central W Tajik

Type Locality and Naming

Includes in Khation Region, Sughd Region, Darvaz district, Dushanbe - west Shirkent-Luchob, Dushanbe - east Shirkent-Luchob.

Synonym: Muzrabat horizon, Музрабатский горизонт

Lithology and Thickness

In the South Gissar region, The Muzrabat horizon (Музрабатский горизонт) of the Upper Turonian is composed of varicolored clays and siltstones with layers of limestone and gypsum. Thickness is 8-12 m.

In the Dushanbe region, The Muzrabat horizon consists of variegated clays and argillites with layers of limestones and gypsum (18 m).

In the Kafirnigan district, the Muzrabat horizon is represented by variegated clays and argillites with layers of limestones and gypsum (20-30 m). In the southern sections of the Kafirnigan district, the Muzrabat horizon corresponds to clays and limestones (Djalilov and Khakimov, 1972).

In the Vakhsh district, The Muzrabat horizon (Музрабатский горизонт) is formed by variegated clays and siltstones containing layers of limestone and gypsum (35-55 m).

In the Darvaz district, The Muzrabat horizon corresponds to the Garm suite, formed from red-colored clays, siltstones and sandstones, containing layers of gypsum and conglomerates. The thickness of the suite 10-45 m.

In the Karategin region, The Muzrabat horizon of the upper Turonian corresponds to colorful clays with siltstone layers (17-20 m).

Lithology Pattern:

Gypsiferous claystone

Relationships and Distribution

Lower contact

Overlies the Lower Cretaceous formations (e.g., Dasgiryak Fm) or lies with a sharp angular unconformity on the Paleozoic.

Upper contact

Underlies the Modun Fm.

Regional extent

Afghan-Tajik Basin. It is widespread in South Gissar region, Dushanbe region, Kafirnigan district, Vakhsh district, Darvaz district, Karategin region.

GeoJSON

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Fossils

Age

Upper Turonian

Age Span:

Beginning stage:

Turonian

Fraction up in beginning stage:

0.8

Beginning date (Ma):

90.29

Ending stage:

Turonian

Fraction up in the ending stage:

1.0

Ending date (Ma):

89.39

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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