Zarafshan Gr

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

Zarafshan Gr

Period:

Quaternary

Age Interval:

Holocene, Z5

Province:
Zarafshan-N.Gissar

Type Locality and Naming

Along the river Zarafshan. G.F. Tetukhin, 1958f.

Synonym: Zarafshan Complex, Зарафшанский компл.

Lithology and Thickness

Sandy-gravel formations with layers of clays, sandy-loamy, sometimes rubble, sediments of the riverbed, floodplain, and I floodplain terrace and adjacent to them alluvial fans. Thickness 3-15m.

Lithology Pattern:

Aus Conglomerate

Relationships and Distribution

Lower contact

Overlies the eroded surface of deposits of various ages.

Upper contact

This is the youngest unit in the schematic stratigraphic column

Regional extent

Zarafshan River valley, Zirabulak-Ziaetdinsky district. It is correlated with the Syrdarya complex (Syrdarya Gr).

GeoJSON

null

Fossils

Contains bone remains of rodents - Ellobius talpinus Pall., Citellus (Colobotis) fulvus Licht., Rettus rettoides Hod., Mus (Mus) Musculus Lin., Cricetulus (Cricetulus) migratorius and other modern species. Analysis of the age by specific weight and optical refractive index of these remains gave a modern dating of the bone-containing layers. Contains remains of modern large mammals and plant remains of currently existing species, objects of human economic activity, starting from the Neolithic era.

Age

Used in the stratigraphic scheme of Quaternary deposits (Atlas of Stratigraphic Schemes of Uzbekistan, 2000f.).

Age Span:

Beginning stage:

Lt. Pleist.

Fraction up in beginning stage:

0.0

Beginning date (Ma):

0.13

Ending stage:

Holocene

Fraction up in the ending stage:

1.0

Ending date (Ma):

0.00

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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