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

Suffin Formation

Suffin Fm

Period:

Jurassic

Age Interval:

Callovian (J₃), C2a

Province:
Central W Tajik

Type Locality and Naming

It is distinguished by the author (Luchnikov, 1970, 1972). Includes in Dushanbe-east Shirkent-Luchob.

Synonym: Suffinskaya suite, суффинскои свите

Reference section:

Lithology and Thickness

It is composed of multicolored sands and siltstones with rare layers of gravel. Thickness is 30-45 m.

Lithology Pattern:

Sandy_claystone

Relationships and Distribution

Lower contact

It lies conformably on the Lower-Middle Jurassic Gurud Fm (гурудской свите)

Upper contact

It is conformably overlain by the Varzob Fm (варзобскои свитой).

Regional extent

It is widespread in the Dushanbe district. In the eastern part (to the east of the interfluve of the Shirkent-Luchob) it is represented by the Suffin suite (суффинской свитами). In the interfluve Shirkent--Luchob these several non-coeval suites transition (pairwise) into each other along the strike.

GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[68.73,38.86],[69.27,38.99],[69.86,39.03],[69.87,38.91],[69.76,38.64],[68.9,38.29],[68.7,38.33],[68.51,38.4],[68.22,38.39],[68.29,38.75],[68.73,38.86]]]]}}

Fossils

In the Suffin Fm (суффинскои свите), remains of Callovian, in the opinion of T. A. Sikshtel and the author, plants Pachypteris lanceolata Brongn., Otozamites graphiens Sew., Brachyphyllum sp., Pagiophyllum sp. were found.

Age

The Suffin Fm (Суффинская свита) is attributed to the Callovian based on these fossil data

Age Span:

Beginning stage:

Callovian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

165.29

Ending stage:

Callovian

Fraction up in the ending stage:

1.0

Ending date (Ma):

161.53

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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