Shuruk-Cret Formation

Shuruk-Cret Fm

Period:

Cretaceous

Age Interval:

upper Albian, K1-K3, K7, K9

Province:
Kyzylkum Region

Type Locality and Naming

By the village of Shuruk, Central Kyzylkum. I.M. Abdazimova, E.M. Shvetsova, 1987 (27, pp. 56-57). Stratotype 1.5 km south of the village of Shuruk, on the southern slope of Mt. Kuldyktau.

Synonym: Shuruk Suite, Шурукская св.

Lithology and Thickness

Marine greenish-gray clays, yellowish-orange siltstone (aleurolites) with interlayers of sands and sandstones. Thickness 5-25 m.

Lithology Pattern:

Sandy_claystone

Relationships and Distribution

Lower contact

Conformably overlies the Uzunkuduk-LCret Fm

Upper contact

Overlain with erosion by the Donguztau Fm.

Regional extent

Central Kyzylkum, foothills of Kuldyktau, Auminzatau, Bukantau. Correlated with the upper part of the Akkaptchigai Fm and Shirabad Fm of the South-Western Gissar. (28)

GeoJSON

null

Fossils

Contains marine bivalve mollusks Korobkovitrigonia korobkovi Sav., K romanovskaja Burk.; gastropods Nerineoptyxis amudariensis Pchel.

Age

Belongs to the upper part of the Albian.

Age Span:

Beginning stage:

Albian

Fraction up in beginning stage:

0.8

Beginning date (Ma):

103.04

Ending stage:

Cenomanian

Fraction up in the ending stage:

0.05

Ending date (Ma):

100.17

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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