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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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Sansar Formation
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Sansar Fm base reconstruction

Sansar Fm


Period: 
Devonian

Age Interval: 
Famennian – Frasnian (S2-D3), S4


Province: 
North Tajik

Type Locality and Naming

Decisions..., 1959.

Synonym: Sansarskaia suite, санзарскую

Reference section:


Lithology and Thickness

It is made up of thick-bedded limestones up to 350 m.


Lithology Pattern: 
Limestone


Relationships and Distribution

Lower contact

Underlain by Shingak Fm

Upper contact

Regional extent

They are widespread in the southern part of the Turkestan region in the valley of the Zeravshan River.


GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[68.29,39.54],[68.75,39.49],[69.05,39.42],[68.99,39.24],[69.21,39.23],[69.47,39.23],[69.65,39.22],[70.22,39.34],[70.3,39.18],[69.88,39.1],[69.46,39.09],[69.19,39.1],[68.82,39.12],[68.6,39.15],[67.98,39.2],[67.74,39.19],[67.5,39.1],[67.41,39.2],[67.47,39.32],[67.4,39.4],[67.5,39.55],[67.67,39.63],[68.29,39.54]]]]}}

Fossils

Remains of Jurassic rugose corals Dendrostella trigemme Quendst., Neospongophyllum ex gr. variabile Wdkd., and brachiopods Stringocephalus burtini Defr., and Upper Devonian brachiopods Cyrtospirifer ex gr. verneuili Murch., Leiorhynchus aff. baschkiricuc Tschern (Vinogradov et al., 1961).


Age 


Age Span: 

    Beginning stage: 
Frasnian

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
378.90

    Ending stage: 
Famennian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
359.30

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

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