Neogene

Paleogene

Cretaceous

Jurassic

Triassic

Permian

Carboniferous

Devonian

Silurian

Ordovician

Cambrian

Neoproterozoic

Mesoproterozoic

Paleoproterozoic

Main source = Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian) Translated to English by the GeoGPT group, Zhejiang Lab, Hangzhou, China--see About

Muzrabat Formation

Muzrabat Fm

Period:

Cretaceous

Age Interval:

Upper Turonian, B1a

Province:
Bukhara-SW Gissar

Type Locality and Naming

Along the Muzrabat River, Gissar ridge. M. R. Dzhaliyev, 1968 (190, p. 43). Stratotype on the right bank of the Muzrabat River valley (Gazdagan gorge). Included in the Muzrabat horizon.

Synonym: Muzrabat Suite, Музрабатская св., Muzbrat Fm, Muzrabat suite

Lithology and Thickness

Gray, bluish-gray, red clays with layers of gypsum and shell limestones. Thickness 4-40 m.

Lithology Pattern:

Gypsiferous claystone

Relationships and Distribution

Lower contact

Conformably overlies the Dasgiryak Fm

Upper contact

Conformably overlain by the Modun Fm.

Regional extent

Southwest, South, Northwest Gissar, Babatag ridge. The Muzrabat Fm and the underlying Dasgiryak Fm are united by H. H. Mirkamalov et al. (300) into the Dehkanabad Fm. (51; 56; 189; 383; 446; 452).

GeoJSON

null

Fossils

Contains ammonites Subprionocyclus cristatus Bulling., S. ornatus Iljin, S. gissarensis Chak., S. pseudocristatus Iljin; marine bivalve mollusks - Costeina costei (Coq.); foraminifers - Paragaudryina babaevi Suleim., Spiroplectammina praelonga (Reuss); ostracods - Neocyprideis (?) leguminiformis Andrv.

Age

Belongs to the upper Turonian.

Age Span:

Beginning stage:

Turonian

Fraction up in beginning stage:

0.55

Beginning date (Ma):

91.42

Ending stage:

Turonian

Fraction up in the ending stage:

0.7

Ending date (Ma):

90.74

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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