Turtkul Formation

Turtkul Fm

Period:

Neogene

Age Interval:

Lower Miocene, U2

Province:
Ustyurt-Sultanuzdag

Type Locality and Naming

In boreholes in the area of the city of Turtkul. B.I. Pinhasov in 2000. Stratigraphic scheme of Neogene deposits (Atlas of Stratigraphic Schemes of Uzbekistan, 2000).

Synonym: Turtkul Topitsa, Турткульская т.

Lithology and Thickness

Marine shallow-water clays, variegated-red-colored siltstone (aleurolites), sands, sandstones. Thickness up to 100 m.

Lithology Pattern:

Clayey sandstone

Relationships and Distribution

Lower contact

Conformably overlies the Daryalyk Fm

Upper contact

conformably overlain by the Agitmin Fm

Regional extent

Khorezm. Balkhauinsky (Turtkulsky) depression. B.I. Pinhasov distinguished it as an independent Turtkul Fm. Corresponds to the upper part of Sakaraul Fm. Correlated with the upper part of the Sarbatyr Fm.

GeoJSON

null

Fossils

Contains mollusks - Pitar (Calista) italica Defr., P. (C.) cf. erycinoides Lam., P. (Cardiopsis) gigas Lam., Turitella turris Bast.; ostracods - Ilyocypris aff. errabundis Mand., Cytheridea explorata Ros., C. danovi Ros.

Age

These deposits are usually attributed to the Lower Miocene (Burdigalian).

Age Span:

Beginning stage:

Burdigalian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

20.45

Ending stage:

Burdigalian

Fraction up in the ending stage:

1.0

Ending date (Ma):

15.99

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)”