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

Suvliksay Formation

Suvliksay Fm

Period:

Proterozoic

Age Interval:

Upper Riphean, N4

Province:
Nuratau

Type Locality and Naming

Named after Suvliksay, N. Nuratau. M.A. Akhmedjanov et al., 1975 (73, pp.84-85). The stratotype is in the Suvliskaya Basin.

Synonym: Suvliksayskaya Suite, Субликсайская св.

Lithology and Thickness

Upper part consists of horizons of massive cherts, limestones, and dolomites, exposed as tectonic scales on the wings of the Fazylman structure, where they alternate with meta-terrigenous formations of the Kansay suite of the Vendian-Lower Cambrian (?). Thickness is 20-100 m.

Lower part consists of alternating packages and layers of dark quartzites, graphitic-quartz, quartz-graphitic-mica, and actinolitic slates, dolomites, limestones, and cherts. Thickness is about 200 m.

The total thickness of the suite is about 300 m.

Lithology Pattern:

Siliceous limestone

Relationships and Distribution

Lower contact

The contacts are tectonic.

Upper contact

The contacts are tectonic.

Regional extent

The western part of the Nuratau Range forms the core of the Fazylman Anticline, where the lowest horizons are exposed. It is an analogue of the Tascazgan Fm of the Y. Tamdytau, the middle and upper parts of the Kokpatass Fm of the Bukantau.

GeoJSON

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Fossils

The Late Riphean age is established by the finds of kamazids of the family Tridiidae, acritarchs - Leiosphaeridia jacuticaTim., Chuaria">Chuaria">Chuaria">Chuaria circularis Walc., Margominuscula rugosa Naum., Satka elongata Jank., and others.

Age

Yu.A. Likhachev et al. (266) referred these deposits to the Tascazgan suite and assigned them to the Lower Paleozoic. Under the same name, but as Upper Proterozoic or Riphean, they were described in geological survey works by Sh.Sh. Sabdyushev et al. (1975), E.V. Chukarov et al. (1971), R.R. Usmanov et al. (1984). A.K. Bukharin et al. (122) assigned these deposits to the Cambrian-Lower Ordovician; M.A. Akhmedjanov et al. (73; 75) consider the S. suite to be Upper Riphean; in the monograph (165) and on the State Geological Map-500 of Uzbekistan (460) it is dated to the Middle-Late Riphean.

Age Span:

Beginning stage:

Tonian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

1,000.00

Ending stage:

Cryogenian

Fraction up in the ending stage:

1.0

Ending date (Ma):

635.00

Depositional setting

Depositional pattern:

Additional Information

Compiler:

Z.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)”