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

Select Region(s) to search
Hold Ctrl (Windows/Linux) or Command (Mac) to select multiple

Upper Hisar-Zarafshan deposits Formation

Upper Hisar-Zarafshan deposits Fm

Period:

Cretaceous

Age Interval:

Turonian, C1, C1a, C1b, C1c

Province:
Central W Tajik

Type Locality and Naming

Includes in Hisar-Zarafshan ranges, and Obisafit, Turkparidin, Chakykalya typesections

Synonym: Upper Cretaceous Deposits

Reference section:

Lithology and Thickness

The deposits considered here as Upper Cretaceous have been insufficiently studied, although their sections, apparently, do not differ in principle from other sections of the Turkistan and Zarafshan-Gissar regions. In general, these are colorful clays, sandstones, and limestones with conglomerate layers, thickness 100-500 m.

Lithology Pattern:

Clayey sandstone

Relationships and Distribution

Lower contact

They lie conformably on the deposits of the Lower Cretaceous.

Upper contact

They are overlain with an unconformity by the Akdjar Fm of the Paleocene.

Regional extent

In the Turkistan and Zarafshan-Gissar regions, the undifferentiated Upper Cretaceous is identified in the extreme eastern parts of their territories, in the basins of the Pitaoukul, Karagushkhona rivers, etc.

GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[67.98,38.93],[67.84,38.93],[67.75,39],[67.69,39.14],[67.95,39.18],[68.65,39.29],[70.55,39.46],[70.71,39.43],[70.66,39.23],[70.01,38.98],[69.39,38.86],[68.77,38.75],[68,38.7],[67.98,38.93]]]]}}

Fossils

Age

Maastrichtian. It is mentioned Upper Cretaceous, hence taken Maastrichtian for schematic stratigraphic representation.

Age Span:

Beginning stage:

Maastrichtian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

72.17

Ending stage:

Maastrichtian

Fraction up in the ending stage:

1.0

Ending date (Ma):

66.04

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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