Neogene

Paleogene

Cretaceous

Jurassic

Triassic

Permian

Carboniferous

Devonian

Silurian

Ordovician

Cambrian

Neoproterozoic

Mesoproterozoic

Paleoproterozoic

Main source = Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian) Translated to English by the GeoGPT group, Zhejiang Lab, Hangzhou, China--see About

Dzhagarmin Formation

Dzhagarmin Fm

Period:

Carboniferous

Age Interval:

Visean, N1

Province:
Nuratau

Type Locality and Naming

Along the Dzhagarma ridge, N. Nuratau. R.R. Usmanov in 1990 (Usmanov et al., 1999f.; 460, p.162).

Synonym: Dzhagarminskaya Suite, Джагарминская св.

Lithology and Thickness

In the lower part of the section - siliceous rocks from gray to black, interbedded with massive thin-bedded limestones and dolomites.

Above - sandy clastic and oolitic limestones. Thickness 100-125 m.

Lithology Pattern:

Limestone

Relationships and Distribution

Lower contact

Relationships with adjacent strata are tectonic. (460).

Upper contact

Relationships with adjacent strata are tectonic. (460).

Regional extent

Northern Nuratau ridge, in two isolated outcrops in the Dzhagarma ridge, southern part of the Shokhetau Mountains (Shokhetau Klippen). Coeval with Chambil Fm?

GeoJSON

null

Fossils

Foraminifera Earlandia elegans (Raus. et Reitl.), Omphalotis cf. drequentata (Gan.), Tuberetina maljavkini (Raus.), Endostaffella shamordini (Raus.) and others (Usmanov et al., 1999f.).

Age

Visean age is determined by foraminifera.

Age Span:

Beginning stage:

Visean

Fraction up in beginning stage:

0.0

Beginning date (Ma):

346.73

Ending stage:

Visean

Fraction up in the ending stage:

1.0

Ending date (Ma):

330.34

Depositional setting

Depositional pattern:

Additional Information

Compiler:

R.R. Usmanov – In: GeoGPT translation of: “Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian)”