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

Khodzheilin Formation

Khodzheilin Fm

Period:

Cretaceous

Age Interval:

lower-middle Aptian, U2

Province:
Ustyurt-Sultanuzdag

Type Locality and Naming

Along the village of Khodzheili, S. Pre-Aral. I.M. Abdurazimov in 1996. Wells. Stratotype - section of the profile well 1 of the village of Hodzheili.

Synonym: Khodzheilinskaya Suite, Ходжеклинская св.

Lithology and Thickness

Gray, greenish-gray sandstones, clays with layers of siltstone (aleurolites), with phosphorite and glauconite. Thickness 40-200m.

Lithology Pattern:

Clayey sandstone

Relationships and Distribution

Lower contact

Overlies conformably on the Chimbay Fm

Upper contact

It is overlain transgressively by the Sultanbobin Fm.

Regional extent

GeoJSON

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Fossils

Contains marine bivalve mollusks Amphidonte vulgata Vinok., Cymbula gardneri (J. Nikit.); foraminifers Mjatliukaena gaultina (Berth.), Haplophragmoides aff. nonioninoides (Reuss.); complex of spores and pollen - Gleicheniidites carinatus Bolch. (0-1), G. senonicus Ross. (1535), Clavifera tuberosa Bolch. (0-1), C. triplex Bolch. (0-1), Pilosisporites setiferus (Verb.) Shv. (0-1), Inaperturopollenites Dubius (Pot. et Ven.) Tn. et Ph. (17-36).

Age

Conditionally belongs to the lower + middle Aptian. Used in the legend of the Pre-Aral subseries to geological maps of the 1:200000, 1998 scale.

Age Span:

Beginning stage:

Aptian

Fraction up in beginning stage:

0.2

Beginning date (Ma):

119.76

Ending stage:

Aptian

Fraction up in the ending stage:

0.6

Ending date (Ma):

116.48

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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