Madaniyat Formation

Madaniyat Fm

Period:

Devonian

Age Interval:

Emsian, K8

Province:
Kyzylkum Region

Type Locality and Naming

Along the Madaniyat, Aristantau Mountains, Central Kyzylkum. N.M. Larin et al., 1989 (495, p. 41). Stratotype in the southwestern part of the Aristantau Mountains. Lower formation in East Aristanau Reef Fm(local)

Synonym: Madaniyatskaya Formation, Маданиятская св.

Lithology and Thickness

Lower part, black, thin-bedded dolomites;

Upper part, conglomerate-breccias and clastic-debris limestones, probably representing reef slope facies.

Thickness in Aristantau - 242 m; Thickness in Muruntay - 188-255m.

Lithology Pattern:

Dolomitic limestone

Relationships and Distribution

Lower contact

Conformably overlies the Dzhengeldin Fm

Upper contact

It is conformably overlain by the Iza Fm in Aristantau and the South Bozdon Fm in Muruntay. (165; 495).

Regional extent

Central Kyzylkum, Aristantau Mountains, Muruntau.

GeoJSON

null

Fossils

Contains corals - Embolophyllum sp., Paraheliolites ex gr. vulgaris (Tchern.); brachiopods - Carinatina arimaspa (Eichw.), Devonaria kolymensis Grats., Tentaculites - Nowakia ex gr. praecursor Bouček, Viriatellina sp., conodonts Polygnathus dehiscens Phil. et John.

Age

Fossil data characterizes the Lower Emsian level (lower part of the Kitab Mountains).

Age Span:

Beginning stage:

Emsian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

410.51

Ending stage:

Emsian

Fraction up in the ending stage:

0.5

Ending date (Ma):

402.41

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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