Aksaray Formation

Aksaray Fm

Period:

Neogene

Age Interval:

Miocene-Pliocene, F1

Province:
Fergana

Type Locality and Naming

Along the Aksaray River, West Fergana. S.A. Nesmeianov, 1965 (324, p.103). The use of The stratigraphic name is not recommended, as it combines a series of different-aged and different-facies suites of Fergana - Bahmal'skaya (gypsum-bearing), Obchakskaya, Akchopskaya.

Synonym: Aksarayskaya Suite, Аксарайская св., Aksarai suite

Lithology and Thickness

Along S.A. Nesmeianov, it includes: 1) pale variegated (northwest gypsum-bearing) t. - rock salt, gypsum, marls, clays, siltstone (aleurolites), sandstones, thickness up to 2000 m; 2) brown t. - conglomerates, sandstones, clays, siltstone (aleurolites), thickness up to 200-1200 m; 3) pale t. - conglomerates, sandstones, siltstone (aleurolites), thickness up to 600 800m.

Lithology Pattern:

Gypsiferous claystone

Relationships and Distribution

Lower contact

Not mentioned.

Upper contact

Not mentioned.

Regional extent

Fergana.

GeoJSON

null

Fossils

In the brown t., there are remains of Pliocene mammals - Gricetulus sp., Leporidae gen., Hipparion sp., Rhinocerotidae gen.?, Bovida gen.

Age

Along A., the age of the suite is Miocene-Pliocene (193; 444). Langhian-Messinian

Age Span:

Beginning stage:

Langhian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

15.99

Ending stage:

Messinian

Fraction up in the ending stage:

1.0

Ending date (Ma):

5.34

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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