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

Muyan Formation

Muyan Fm

Period:

Cretaceous

Age Interval:

Middle-Late Albian (K₁²), S3, S5

Province:
North Tajik

Type Locality and Naming

Synonym: Muyanskaya suite, Муянсю1я свита, Guzanskaya suite

Reference section:

Lithology and Thickness

It is represented by red and gray sandstones and claystones with lenses of gravel conglomerates. The thickness is 10 to 150 m.

Lithology Pattern:

Sandy_claystone

Relationships and Distribution

Lower contact

It overlies the coal-bearing variegated rocks of the middle Jurassic.

Upper contact

Regional extent

GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[69.06,39.24],[69.08,39.38],[69.16,39.48],[69.7,39.57],[69.92,39.53],[70.09,39.56],[70.24,39.51],[70.46,39.58],[70.52,40.05],[70.56,40.08],[70.78,40.13],[70.76,40.11],[70.66,40.09],[70.65,40.08],[70.65,40.01],[70.64,39.57],[70.54,39.46],[69.87,39.3],[69.46,39.25],[69.2,39.26],[69.06,39.24]]]]}}

Fossils

Age

Age Span:

Beginning stage:

Albian

Fraction up in beginning stage:

0.35

Beginning date (Ma):

108.76

Ending stage:

Albian

Fraction up in the ending stage:

0.8

Ending date (Ma):

103.04

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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