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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Shiberdzhilgin Formation

Shiberdzhilgin Fm

Period:

Permian

Age Interval:

Upper Permian (Pk-p), E-Psh1-3

Province:
East Tajik (East Pamir)

Type Locality and Naming

Includes in East Pshart, East Pshart (southern slope), East Pshart (Agadjan river basin). It is identified in 1968 by V.I. Dranov.

Synonym: Shiberdzhilginskaya formation, шиберджилгинская толща

Reference section:

Lithology and Thickness

70 m thick, is composed of greenish, sometimes dirty-red tuffs and tuff conglomerates of basic rocks with interlayers of colorful cherts and nodules, fragments of white organic limestones

Lithology Pattern:

Volcanic_ash

Relationships and Distribution

Lower contact

Momudzhilgin Fm

Upper contact

overlain with unclear relationships by dark gray sandstones and slates, which are conditionally attributed to the lower - middle Triassic.

Regional extent

They outcrop in the watershed and on the northern slope of the eastern part of the Shart Range.

GeoJSON

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Fossils

It consists of foraminifera Codonofusiella sp., Rauserella sp., Kahlerina sp., Misellina sp., etc.

Age

Upper Permian

Age Span:

Beginning stage:

Wuchiapingian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

259.55

Ending stage:

Changhsingian

Fraction up in the ending stage:

1.0

Ending date (Ma):

251.90

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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