Tashibulak Formation

Tashibulak Fm

Period:

Devonian, Carboniferous

Age Interval:

Famennian-Tournaisian, K2

Province:
Kyzylkum Region

Type Locality and Naming

Along the col. Tashchibulak, Bukantau Mountains, Central Kyzylkum. Ya.B. Aysanov et al., 1984f.

Synonym: Tashchibulak Suite, Ташибулакская св.

Lithology and Thickness

Limestones, dolomites. Thickness 170m.

Lithology Pattern:

Dolomitic limestone

Relationships and Distribution

Lower contact

According to, with a gradual transition, it lies on the dolomites of the Oguztau Fm

Upper contact

Without visible unconformity, with local erosion, is overlain by the Serkeshkuduk Fm

Regional extent

Central Kyzylkum, southern slope of Mt. Tubabergen (col. Tashchibulak, Kulkuduk area) and the watershed part of the Bukantau Mountains.

GeoJSON

null

Fossils

Foraminifera - Glomospiranella cf. rara Lip., Septatournayella ex gr. rauserae Lip., Parathurammina cf. suleimanovi Lip., P. cf. subvasta E. Buk., Tuberitina sp., Bisphaera sp., Archaesphaera minima Sul. and others

Age

Age according to foraminifera characterizes the age of the enclosing rocks as late Devonian (Famennian)-early Carboniferous (Tournaisian).

Age Span:

Beginning stage:

Famennian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

371.10

Ending stage:

Tournaisian

Fraction up in the ending stage:

1.0

Ending date (Ma):

346.73

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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