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

Kallamazar Formation

Kallamazar Fm

Period:

Cretaceous

Age Interval:

Lower Albian, B3

Province:
Bukhara-SW Gissar

Type Locality and Naming

Along the village of Kallamazar, Southwest Gissar. Kh.Kh. Mirkamalov, M.E. Egamberdyev, 1969 (300, p.65). Stratotype in the vicinity of the village of Kallamazar. Upper-middle formation (4 of 5) of the Kamprek Gr. Enters the Derbent Horizon.

Synonym: Kallamazar Formation, Калламазарская св.

Lithology and Thickness

Dark and greenish-gray clays with layers of sandstones, limestones, shell limestones, areas with layers of reddish-brown siltstone (aleurolites). Thickness 25-85m.

Lithology Pattern:

Shallow-marine marl

Relationships and Distribution

Lower contact

Conformably overlies the Charshangin Fm

Upper contact

conformably overlain by the Luchak Fm.

Regional extent

Southwest Gissar, Bukhara-Karshinsky District.

GeoJSON

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Fossils

Contains ammonites - Douvilleiceras mammillatum Schloth., Cleoniceras mangysclakensis Lupp.; marine bivalve mollusks - Nucula tagarensis Vinok., Amphidonte arduennensis zeravschanica (Muzaph.); foraminifera - Evolutinella asiatica (Zhuk.), E. subevoluta Nikit. et Mjatl., Gaudryinopsis gissarensis (Zhuk.); ostracods - Cytherella karlukensis Andrv.

Age

Belongs to the Lower Albian.

Age Span:

Beginning stage:

Albian

Fraction up in beginning stage:

0.1

Beginning date (Ma):

111.93

Ending stage:

Albian

Fraction up in the ending stage:

0.45

Ending date (Ma):

107.49

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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