Dushanbe Gr

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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Dushanbe Gr

Period:

Quaternary

Age Interval:

Late Quaternary (Q_III), 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)

Synonym: Dushanbe complex, Душанбинский комплекс

Reference section:

Lithology and Thickness

In Central Tajikistan, these are moraines of the last glaciation and associated formations of a different origin. Their thickness is 5-80 m. In Southwestern Tajikistan - alluvial and alluvial-proluvial formations up to 10-200 m thick. Alluvial and alluvial-proluvial deposits consist of gravels, sands, and loams, with mountainous regions dominated by gravels with lenses of unsorted boulder-gravelly rocks, while in depressions sands and loams predominate over river-bed gravels. The deposits form two, and locally - three regionally consistent low terraces. In the deepened sections of valleys and in depressions, the thickness of the deposits reaches 100-200 m.

Alluvial deposits adjoin fluvioglacial and morainic formations of the last glaciation in mountainous regions. Moraines are characterized by a coarser composition compared to the moraines of the middle Quaternary Ilak complex; they are composed of boulders and cobbles with a slight admixture of fine earth. Moraines stretch across the lower parts of the slopes of modern valleys or fill their bottoms. They are separated from the moraines of the Ilak complex by a significant incision, and in the upper parts of the valleys, they are embedded into them.

Lithology Pattern:

Glacial till

Relationships and Distribution

Lower contact

Upper contact

The schematic stratigraphic column indicates the upper contact as Alichur Gr

Regional extent

It is widespread in the Central Pamir.

GeoJSON

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Fossils

Consists of the findings of late Paleolithic (Oranian) cultural monuments and the radiological age figures of these monuments, which amount to 30,000 years (Okladnikov, 1958).

Age

The late Quaternary age of the complex is determined by the relationship of its deposits to the middle Quaternary Ilyak Gr, as well as by the findings of late Paleolithic (Oranian) cultural monuments and the radiological age figures of these monuments, which amount to 30,000 years (Okladnikov, 1958).

Age Span:

Beginning stage:

Chibanian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

0.77

Ending stage:

Chibanian

Fraction up in the ending stage:

1.0

Ending date (Ma):

0.13

Depositional setting

Alluvial and alluvial-proluvial deposits.

Depositional pattern:

Additional Information

Compiler:

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