Cenozoic

Cretaceous

Jurassic

Triassic

Permian

Carboniferous

Devonian

Silurian

Ordovician

Cambrian

Neoproterozoic

Main source = Baratov, R.B., et al. (1976). Subdivisions of stratified and intrusive rocks of Tajikistan. Publishing House "Donish", Dushanbe, 269 pp. plus tables. Provided by Dr. Jovid Aminov, Nazarbayev University, Astana, Kazakhstan Translated to English by the GeoGPT group, Zhejiang Lab, Hangzhou, China--see About

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Sangrezin Formation

Sangrezin Fm

Period:

Cretaceous

Age Interval:

Lower-Upper Cenomanian (K₂¹), S4

Province:
North Tajik

Type Locality and Naming

Synonym: Sangrezinskaya suite, Tyubegatansky and Karikansaisky horizons, Tagarinsky horizon

Reference section:

Lithology and Thickness

It consists of red conglomerates, siltstones (=silt like) with layers of sandstones and gravelites (Dzhalilov et al., 1971). Its thickness varies from 2 to 7 m in the Turkestan region and from 25 to 120 m in the Zeravshan-Gissar region.

Lithology Pattern:

Aus Conglomerate

Relationships and Distribution

Lower contact

The suite is deposited with a sharp angular unconformity on the Paleozoic deposits.

Upper contact

Regional extent

In the rest of the territory of the Turkestan region, including the Zeravshan valley, as well as in the Zeravshan-Gissar region, the lower Cenomanian (Tyubegatansky and Karikansaisky horizons) and the upper part of the upper Cenomanian (Tagarinsky horizon) corresponds to the Sangrezin Fm.

GeoJSON

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Fossils

Age

Lower-Upper Cenomanian

Age Span:

Beginning stage:

Cenomanian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

100.50

Ending stage:

Cenomanian

Fraction up in the ending stage:

0.8

Ending date (Ma):

95.22

Depositional setting

Depositional pattern:

Additional Information

Compiler:

Extracted from Baratov, R. B. (1976). Subdivisions of stratified and intrusive rocks of Tajikistan. Donish, Dushanbe, 276.