Varzyk Gr

Period:

Cretaceous

Age Interval:

Cenomanian-Campanian, F3

Province:
Fergana

Type Locality and Naming

Varzyk area, Northern Fergana. S.N. Simakov, 1953 (416, p.140, 153). Chatkalo-Kuramin Seismo-Facial Zone, Northern Fergana (Varzyk) Fault Zone.

Synonym: Varzyk Series, Варзыкская сер.

Lithology and Thickness

Consists of Karaalmin, Urumbash, Yalovach, and Nichkesay Fms. Consists of red-colored sandstones, gravelstones with layers of conglomerates, limestones, and clays. Thickness 53-230m.

Lithology Pattern:

Sandstone

Relationships and Distribution

Lower contact

Overlies with erosion on the Changet Gr

Upper contact

It is transgressively overlain by the Paleogene

Regional extent

Northern and Northeastern Fergana. . In the northern Fergana, with the Varzyk Gr, it is conditionally correlated with the Orkit Fm (166; 417; 458).

GeoJSON

null

Fossils

Contains bivalves - Plicatula turkestanensis Born., Sainshandia aralica Mart.; remains of turtle and dinosaur bones.

Age

Conditionally refers to the middle Cenomanian - Maastrichtian. In Strat. Sl. (446) it is referred to the Turonian- Cenomanian.

Age Span:

Beginning stage:

Cenomanian

Fraction up in beginning stage:

0.4

Beginning date (Ma):

97.86

Ending stage:

Maastrichtian

Fraction up in the ending stage:

1.0

Ending date (Ma):

66.04

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)"