Sultan-Sandzhar Formation

Sultan-Sandzhar Fm

Period:

Cretaceous

Age Interval:

Cenomanian, U6

Province:
Ustyurt-Sultanuzdag

Type Locality and Naming

Along Lake Sultansandzhar, East Turkmenistan. A.V. Danov, 1934 (422, p.47).

Synonym: Sultansandzharskaya Svita, Султансанджарская св.

Lithology and Thickness

Coastal-marine formations. Sands, sandstones with subordinate layers of gray and red siltstone (aleurolites) and clays, at the base with basal conglomerates. Thickness 145-220m.

Lithology Pattern:

Sandstone

Relationships and Distribution

Lower contact

Conformably overlies the Uzunkuduk-LCret Fm

Upper contact

is conformably overlain by the Khyrsbulak Fm.

Regional extent

Pitnyak Uplift.

GeoJSON

null

Fossils

Contains ammonites - Turkmenites sp.; marine bivalve mollusks - Lopha dichotoma Bayle, Pitar (Callista) plana Sow.; foraminifers - Trochamminoides cenomanicus (Zhuk.), Trochammina kugitangensis (N. Byk.), Rotaliatina asiatica (N. Byk.), Hedbergella caspia Vass., ostracods - Cythereis beliaevskyi Mand., C. geinitzi (Reuss.); spores and pollen.

Age

Belongs to the Cenomanian

Age Span:

Beginning stage:

Cenomanian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

100.50

Ending stage:

Cenomanian

Fraction up in the ending stage:

1.0

Ending date (Ma):

93.90

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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