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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Rangin Formation

Rangin Fm

Period:

Cretaceous

Age Interval:

Middle Aptian (ap₂), C1, C1a, C1b, C1c

Province:
Central W Tajik

Type Locality and Naming

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

Synonym: Caligrean horizon, Ranginsky suite, ранrинская свиты

Reference section:

Lithology and Thickness

It consists of multicolored sandstones and siltstones, containing lenses of polymict conglomerates. Thickness is 40 - 50 m.

Lithology Pattern:

Sandy_claystone

Relationships and Distribution

Lower contact

It lies with erosion on the coal-bearing rocks of the Lower-Middle Jurassic.

Upper contact

Regional extent

It is developed in the Zeravshano-Gissar region.

GeoJSON

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Fossils

Age

Middle Aptian

Age Span:

Beginning stage:

Aptian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

121.40

Ending stage:

Aptian

Fraction up in the ending stage:

0.4

Ending date (Ma):

118.12

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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