Chimion Formation

Chimion Fm

Period:

Paleogene

Age Interval:

Middle Eocene (Lutetian), F9

Province:
Fergana

Type Locality and Naming

By the village of Chimi, South Fergana. U.M. Rasulov, G. Fathullaev, S. D. Morozov, 1991. Stratotype in the area of the village of Chimi.

Synonym: Yarkutan mountain Sp, (not used), Chimion Suite, Чимионская св.

Lithology and Thickness

Green, tobacco-green, gray-green clays. Thickness up to 50 m.

Lithology Pattern:

Claystone

Relationships and Distribution

Lower contact

Lies conformably on the Alay Fm

Upper contact

It is overlain by the Auval Fm

Regional extent

South Fergana. Corresponds to the lower part of the Turkestan Fm - sl. with Fatina buhmi.

GeoJSON

null

Fossils

Contains marine bivalve mollusks - Fatina buhmi Vial., Lucina menardi Desh.; foraminifers - Nonion laevis umbilicata Moroz., Gribrononion ferganensis N. Byk., Rotalia alaica N. Byk., R. iljini N. Byk.; ostracods - Cytherella evexa Mand., Pontocypris elongatissima Mand., Shuleridea ampula Mand., C. spicula Mand. and others.

Age

Belongs to the middle Eocene (Lutetian Stage).

Age Span:

Beginning stage:

Lutetian

Fraction up in beginning stage:

0.2

Beginning date (Ma):

46.66

Ending stage:

Lutetian

Fraction up in the ending stage:

0.5

Ending date (Ma):

44.55

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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