Maral Formation

Maral Fm

Period:

Paleogene

Age Interval:

Upper Eocene (Priabonian), K1-K9

Province:
Kyzylkum Region

Type Locality and Naming

By Maral, Kyzylkum. R.K.Makarova, E.F.Tsatsir, 1960f. Stratotype in the Mingbulak basin, in the area of the Maral settlement. Used in the preparation of reference legends, in geological survey and thematic works of the Kyzylkum, Nurata ore regions, Sultanuizdag Mountains and Pre-Aral.

Synonym: Maral Suite, Маральская св.

Lithology and Thickness

Carbonate clays, greenish-gray, light-green, often variegated with marl layers at the base. Thickness up to 66m.

Lithology Pattern:

Shallow-marine marl

Relationships and Distribution

Lower contact

Lies conformably on the Kultaban Fm

Upper contact

Overlain with erosion by various Neogene rocks

Regional extent

Central, West, East Kyzylkum, East Pre-Aral, north-western part of the Bukhara depression. Correlated with the Akchakain Fm, lower part of the Kungrad Fm of Pre-Aral and Ustyurt, and the Isfarin Fm and Khanabad Fm of the Fergana depression.

GeoJSON

null

Fossils

Contains marine bivalve mollusks - Lucina rectangulata Hofm., Cardita turgaica Miron., Tellina schurabica Makar., T. budensis Hofm.; foraminifera - Bolivina antegressa Subb., B. asiatica Moroz., Globigerapsis tropicalis Blow. et Bahner.; nanoplankton of zones NP 19-20 Isthmolithus recuvis.

Age

Belongs to the upper Eocene, Priabonian stage (Abdusamatov et al., 1995f).

Age Span:

Beginning stage:

Priabonian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

37.71

Ending stage:

Priabonian

Fraction up in the ending stage:

1.0

Ending date (Ma):

33.90

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)”