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

Tagarin Formation

Tagarin Fm

Period:

Cretaceous

Age Interval:

Middle Cenomanian, B1

Province:
Bukhara-SW Gissar

Type Locality and Naming

Along the Tagara Mountain, Southwest Gissar. Collective of authors, 1959 (382, Table 16). Stratotype not specified. Enters the Tagarin Horizon. Uppermost formation in Tarkapantigay Gr

Synonym: Tagarinskaya Formation, Тагаринская св.

Lithology and Thickness

In the southern sections - alternation of sandy limestones-rudstones, fine- and medium-grained sandstones, clay and siltstone (aleurolite) interlayers are rare. In the north - gray hard detrital sandstones. Thickness 20-72m.

Lithology Pattern:

Sandstone

Relationships and Distribution

Lower contact

Lies conformably on the Karikansay Fm or Kharangon Fm

Upper contact

Overlain conformably by the Gazdagan Fm or Yangilyk Fm.

Regional extent

South-West, South Gissar. Corresponds to the local zone of Caprinula soluni and Eoradiolites kugitangensis. (56; 114; 166; 189; 190; 458; 452).

GeoJSON

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Fossils

Contains ammonites - Kopetdagites sp.; marine bivalve mollusks - Caprinula soluni Bobk., Eoradiolites kugitangensis Bobk., Praeradiolites tagarensis Bobk.; gastropods - Oligoptyxis bobkovae Dzhal., O. gissarensis Pčel., Archimedia asiatica Dzhal., Trochacteon subangustatus Pčel., T. ornatus Pčel., foraminifers - Gaudryinopsis asiaticus (N. Byk.), Bykoviella chinaria Kortch.

Age

Belongs to the middle Cenomanian; Along the Decision ... ,1977 (383), - to the upper Cenomanian; in the Strat. Sl. (446) - to the lower part of the upper Cenomanian.

Age Span:

Beginning stage:

Cenomanian

Fraction up in beginning stage:

0.6

Beginning date (Ma):

96.54

Ending stage:

Cenomanian

Fraction up in the ending stage:

0.75

Ending date (Ma):

95.55

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)”