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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Khorezh Formation

Khorezh Fm

Period:

Permian

Age Interval:

Lower Permian (P₁ kr), D1

Province:
SW Tajik

Type Locality and Naming

Distinguished in the Southwestern Darvaz by N. G. Vlasov (Vlasov, 1959; Vlasov and Miklukho-Maklai, 1959), then traced throughout the Darvaz district. The named suite and sub-suite replace each other in the lateral direction and are coeval.

Synonym: Khorezhska suite, Хориджская свита

Reference section:

Lithology and Thickness

It belongs to Karachatyrsky horizon. The Khorezh Fm is represented by frequently interbedded dark gray and greenish-gray claystones and clay slates containing rare layers of dark gray limestones. Thickness 0-800 m.

Lithology Pattern:

Clayey limestone

Relationships and Distribution

Lower contact

It is conformably overlain on the upper Moscovian - upper Carboniferous limestones.

Upper contact

conformably covered by Sebisurkh Fm

Regional extent

Khorezh Fm (Хориджская свита) and the lower sub-suite of Sebisurkh Fm replace each other in the lateral direction and are coeval.

GeoJSON

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Fossils

In the suite, remains of fusulinids of the Karachatyrsky horizon Schubertella aff. sphaerica Sul., Schwagerina sp., Robustoschwagerina cf. tumidiformis M.-Maclay were found.

Age

Based on the fossil data, it is taken as Asselian for schematic stratigraphic representation.

Age Span:

Beginning stage:

Asselian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

298.89

Ending stage:

Asselian

Fraction up in the ending stage:

1.0

Ending date (Ma):

293.52

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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