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
Jukar Formation
Click to display on map of the Ancient World at:
Jukar Fm base reconstruction

Jukar Fm


Period: 
Paleogene

Age Interval: 
Lower Eocene; K1, D1, C2, C2a, S5


Province: 
SW Tajik, North Tajik, Central W Tajik

Type Locality and Naming

Includes in Khation Region, Sughd Region, Darvaz district, Dushanbe - west Shirkent-Luchob, Dushanbe - east Shirkent-Luchob.

Synonym:


Lithology and Thickness

Greenish-grey mudstones, marls, limestones, shell beds and some sandstones, red mudstones, dolomites and gypsum interbeds. 20 to 240 m.


Lithology Pattern: 
Shallow-marine marl


Relationships and Distribution

Lower contact

Overlies the claystone of the Givar Fm.

Upper contact

Overlain by the claystone of the lower Beshkent Fm.

Regional extent

Afghan-Tajik Basin.


GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[66.75,36.17],[66.49,37.14],[67.06,38.15],[67.6,38.74],[69.06,39.24],[69.08,39.38],[69.16,39.49],[69.71,39.57],[69.91,39.53],[70.1,39.55],[70.25,39.52],[70.46,39.59],[70.65,39.57],[70.68,39.22],[70.78,39.17],[70.86,38.71],[70.99,38.63],[71.21,38.6],[71.38,38.42],[71.06,38.21],[70.86,37.86],[70.76,37.51],[70.1,37.37],[69.25,36.5],[68.49,36.27],[67.66,36.14],[66.75,36.17]]]]}}

Fossils

Shell beds


Age 

Lower-Middle Eocene; placed as upper Ypresian for graphic purposes

Age Span: 

    Beginning stage: 
Ypresian

    Fraction up in beginning stage: 
0.5

    Beginning date (Ma): 
52.04

    Ending stage: 
Ypresian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
48.07

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

Bosboom, R., Mandic, O., Dupont‐Nivet, G., Proust, J. N., Ormukov, C., & Aminov, J. (2017). Late Eocene palaeogeography of the proto‐Paratethys Sea in Central Asia (NW China, southern Kyrgyzstan and SW Tajikistan). Geological Society, London, Special Publications, 427, 565–588. https://doi.org/10.1144/SP427.11.