Kalkanatin-Neog Formation

Kalkanatin-Neog Fm

Period:

Neogene

Age Interval:

Upper Pliocene, K1-K9

Province:
Kyzylkum Region

Type Locality and Naming

The origin of the name is not specified, Central Kyzylkum. B.B. Sitdikov, 1970 (418, pp.49-51).

Synonym: Kalkanatin Suite, Калканатинская св.

Lithology and Thickness

Red-brown siltstone (aleurolites) and clays, near mountain elevations with layers of conglomerates from pebbles of Paleozoic rocks. Thickness up to 140m.

Lithology Pattern:

Siltstone

Relationships and Distribution

Lower contact

Unconformably overlies the Agitmin Fm

Upper contact

Unconformably overlain by Upper Pliocene

Regional extent

Central Kyzylkum, only in boreholes. Along the framing of Central Kyzylkum and to the south of them, in the deep Karakul and Romitan depressions, the proluvial deposits of the Kalkanatin-Neog Fm are interbedded and are facially replaced by alluvial-lacustrine formations of the Upper Pliocene Dengizkul-Neog Fm or Kassantau Fm. The formation has limited application.

GeoJSON

null

Fossils

Contains ostracods - Cyprideis littoralis Br.

Age

According to A., the age of the suite is conditionally Lower to Middle Pliocene, possibly even Upper Pliocene. According to B.I. Pinhasov, it belongs to the Upper Pliocene.

Age Span:

Beginning stage:

Zanclean

Fraction up in beginning stage:

0.5

Beginning date (Ma):

4.47

Ending stage:

Zanclean

Fraction up in the ending stage:

1.0

Ending date (Ma):

3.60

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)”