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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Middle Karamazar deposits Formation

Middle Karamazar deposits Fm

Period:

Cretaceous

Age Interval:

Santonian (undifferentiated - K2), S1

Province:
North Tajik

Type Locality and Naming

Synonym: Upper Cretaceous deposits

Reference section:

Lithology and Thickness

Aus Conglomerate. Pink or yellow sandstones and conglomerates with a thickness of 10-30 m.

Lithology Pattern:

Aus Conglomerate

Relationships and Distribution

Lower contact

They lie in visible conformity on the marls, in other points (Adrasman, Qansay, etc.), these sandstones lie directly on the Paleozoic.

Upper contact

Regional extent

In the section near the village of Shaidan. In the Karamazar district, Upper Cretaceous deposits are encountered sporadically at individual points, poorly studied. Upper Cretaceous deposits are distinguished in the Karamazar, Turkestan, Zarafshan-Gissar, Karategin, Zaalay, Darvaz, Sarykol, and the Central Pamir regions.

GeoJSON

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Fossils

In them, remains of dinosaur bones, turtle shields, shark teeth, as well as shells of freshwater bivalves Sainshandia aralica Mart., Neotrigonioides gigantus Mart., and others have been found.

Age

According to the conclusion of G. G. Martynson, for the Santonian stage of the Northeastern and Eastern Pararya. On this basis, the pink sandstones andConglomerates are considered Santonian. The question of the presence of the Coniacian stage in Karamazar remains open.

Age Span:

Beginning stage:

Santonian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

85.70

Ending stage:

Santonian

Fraction up in the ending stage:

1.0

Ending date (Ma):

83.65

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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