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Cenozoic
Cretaceous
Jurassic
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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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Jerunsay Formation
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Jerunsay Fm base reconstruction

Jerunsay Fm


Period: 
Jurassic

Age Interval: 
Early Jurassic (Jh-a), N-Psh1


Province: 
East Tajik (East Pamir)

Type Locality and Naming

Includes in North Pshart. In the sections of the Madian type (мадиянского типа) (Dronov, Andreeva, 1968)

Synonym: Jerunsayskaya Suite, джерунсайской

Reference section:


Lithology and Thickness

It is composed of light, coarse- and giant-bedded marble-like limestones (40-50 m).


Lithology Pattern: 
Clayey limestone


Relationships and Distribution

Lower contact

Upper contact

Conformably overlain by Sekyebulak Fm

Regional extent

It is developed along the right bank of the Murgab River, to the west of the village of Murgab.


GeoJSON

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Fossils


Age 

Hettangian – Sinemurian

Age Span: 

    Beginning stage: 
Hettangian

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
201.36

    Ending stage: 
Sinemurian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
192.90

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

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