Home Multi-Country Search About Admin Login
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

Search by
Select Region(s) to search
Hold Ctrl (Windows/Linux) or Command (Mac) to select multiple
Uzuntau Formation
Click to display on map of the Ancient World at:
Uzuntau Fm base reconstruction

Uzuntau Fm


Period: 
Jurassic

Age Interval: 
Early Callovian (J3), M3a


Province: 
SE Tajik (SE Pamir)

Type Locality and Naming

It is distinguished in the Southeast Pamir in the SE Murghab district, Gurumdin type section of the Jurassic

Synonym: Uzuntauskaya suite

Reference section:


Lithology and Thickness

It is made of light gray nodular limestones.


Lithology Pattern: 
Limestone


Relationships and Distribution

Lower contact

Schematic stratigraphic column indicates the lower contact as Middle Jurassic sediments

Upper contact

Schematic stratigraphic column indicates the upper contact as Kokchukur Fm

Regional extent

It is widespread in the Southeast Pamir.


GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[73.61,37.44],[73.8,37.52],[73.85,37.63],[73.79,37.71],[73.56,37.71],[73.28,37.73],[72.9,37.77],[72.83,37.81],[72.99,37.94],[73.25,38.18],[73.45,38.19],[73.81,38.14],[74.04,38.13],[74.15,38.12],[74.31,38.11],[74.49,38.08],[74.41,38.06],[74.24,38.07],[74.11,38.07],[73.9,38.06],[73.82,38.01],[73.8,37.93],[73.97,37.74],[74.22,37.59],[74.45,37.51],[74.67,37.41],[74.65,37.39],[74.54,37.38],[74.53,37.4],[74.47,37.4],[74.38,37.39],[74.35,37.43],[74.28,37.4],[74.23,37.41],[74.23,37.38],[74.18,37.34],[73.92,37.28],[73.81,37.24],[73.73,37.23],[73.61,37.25],[73.6,37.27],[73.64,37.31],[73.76,37.34],[73.76,37.42],[73.61,37.44]]]]}}

Fossils

remains of early Callovian ammonites Macrocephalites sp.


Age 

The fossil data indicates early Callovian

Age Span: 

    Beginning stage: 
Callovian

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
165.29

    Ending stage: 
Callovian

    Fraction up in the ending stage: 
0.5

    Ending date (Ma):  
163.41

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

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