Nurin Formation

Nurin Fm

Period:

Paleogene

Age Interval:

Lower Eocene (Ypresian), K1-K9

Province:
Kyzylkum Region

Type Locality and Naming

By Nure city, Kyzylkum. A.V.Begishev, A.G.Kutepov in 1989 (Decision of the Commission on the Paleogene System of SredazRMSK, 1989). Stratotype in the Sangruntau Mountains. The most complete sections are exposed in wells 17, 18, 0.5 km from Nure city. Used in the preparation of reference legends, in geological survey, exploration and thematic works of the Kyzylkum mining region (Stratigraphy of the Paleogene of the Sultanuizdag Mountains, 1989, A.A.Abdusamatov et al.).

Synonym: Nurin Suite, Нуринская св.

Lithology and Thickness

Gray, dark gray, greenish-gray clays, marls. In East Kyzylkum, at the base, with phosphorites and layers of "combustible shales". In Central Kyzylkum - blue-green clays with nests of red. Thickness up to 25 m.

Lithology Pattern:

Shallow-marine marl

Relationships and Distribution

Lower contact

Lies conformably on the Kazakhtau Fm or with erosion on various mountainous upper Cretaceous, in some areas of Kyzylkum facially replaces the lower part of the Sugralin Fm.

Upper contact

Overlain conformably by the Sugralin Fm.

Regional extent

West, Central and East Kyzylkum, Zirabulak-Ziaetdin and Nuratau districts. Correlated with the upper part of the Kyzyltakyr Fm of the South Aral region, the Kaynarbulak Fm of the Prishashkent (Pre-Tashkent) district. Corresponds to the middle part of the Givar Fm of the South-West Gissar.

GeoJSON

null

Fossils

Contains foraminifers - Popovia plana (N. Byk.), Haplophragmoides grzibowski Mjatl., Globorotalia perclara Loebl. et Tapp., G. velascoensis acuta Toulm and others.

Age

Belongs to the Neocene (Ipr horizon).

Age Span:

Beginning stage:

Ypresian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

56.00

Ending stage:

Ypresian

Fraction up in the ending stage:

1.0

Ending date (Ma):

48.07

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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