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

Kulandzhaylau Formation

Kulandzhaylau Fm

Period:

Devonian

Age Interval:

, N1

Province:
Nuratau

Type Locality and Naming

Along the Kulanjalyalau Ridge, Shokhetau Clippens. M.V. Erina in 1977 (Usmanov et al., 1978).

Synonym: Kulandzhalyalau Suite, Куланджайляуская св.

Lithology and Thickness

In the lower part, clayey and siliceous limestones and limestones with interlayers and nodules of chert; in the upper part, massive limestones, less frequently bedded, and dolomites. Thickness 200-500 to 1000 m.

Lithology Pattern:

Limestone

Relationships and Distribution

Lower contact

The lower boundary is unknown

Upper contact

With visible conformity it is overlain by the Tyulkin Fm (460).

Regional extent

Southwestern end of the North Nuratau Range in the Shokhetau Clippens.

GeoJSON

null

Fossils

In the lower part, brachiopods - Uralospirifer sp., Gypidula biplicata Schurr., G. arataeformis Nikif., Gymostrophia alfa Kulk., Eospirifer comata Barr. and others; in the upper part, brachiopods - Sieberella sieberi Buch., Cymostrophia stephani Barr., Sycozhychia amalthea Barr., Eospirifer subturjensis Nik., E. cf. togatus Barr.; corals - Favosites ex gr. sublatus Dubat., Striatopora sp., Cladopora sp., Trachypera sp., Aulopora sp., Pseudopetraia sp. ind.

Age

The age of the suite is determined in the full range of the Early Devonian. In graphics it is shown as 75% as it needs allowance for Tulebay Fm of Lochkovian in section.

Age Span:

Beginning stage:

Lochkovian

Fraction up in beginning stage:

0.75

Beginning date (Ma):

414.05

Ending stage:

Emsian

Fraction up in the ending stage:

1.0

Ending date (Ma):

394.30

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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