Neogene

Paleogene

Cretaceous

Jurassic

Triassic

Permian

Carboniferous

Devonian

Silurian

Ordovician

Cambrian

Neoproterozoic

Mesoproterozoic

Paleoproterozoic

Main source = Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian) Translated to English by the GeoGPT group, Zhejiang Lab, Hangzhou, China--see About

Karikansay Formation

Karikansay Fm

Period:

Cretaceous

Age Interval:

lower Cenomanian, B1

Province:
Bukhara-SW Gissar

Type Locality and Naming

Along the Karikansay ravine, Southwest Gissar. Collective of authors, 1959 (382, table 16). Stratotype along the Karikansay ravine. Upper formation in Tarkapantigay Gr. Included in the Karikansay horizon (56; 114; 166; 189; 189; 190; 452; 458)

Synonym: Karikansay Suite, Карикансайская св.

Lithology and Thickness

Clays (argillites) gray with interlayers of sandstones, siltstone (aleurolites), shell limestones. In the northern sections, at the bottom, interlayers of red-colored sandstones and gravelites. Thickness 60-130m.

Lithology Pattern:

Sandy_claystone

Relationships and Distribution

Lower contact

Lies conformably on the Tyubegatan Fm

Upper contact

It is overlain conformably by the Tagarin Fm.

Regional extent

GeoJSON

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Fossils

Contains ammonites - Karamaites gaurdakense (Lupp.), Mediasiceras mediasiaticum (Lupp.); marine bivalve mollusks - Lopha dichotoma Bayle, Inoceramus pictus Mant., gastropods - Bathraspira angusta Arust., foraminifera - Conorbinopsis aktagi (N. Byk.), Gavelinella cenomanica (Brotz.), Hedbergella caspia (Vass.), Rotaliatina asiatica N. Byk.

Age

Belongs to the upper part of the lower Cenomanian, in the Strat. sl. (446) - to the Cenomanian; Along the "Resolution......,1977" (383), - to the lower Cenomanian.

Age Span:

Beginning stage:

Cenomanian

Fraction up in beginning stage:

0.25

Beginning date (Ma):

98.85

Ending stage:

Cenomanian

Fraction up in the ending stage:

0.6

Ending date (Ma):

96.54

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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