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

Khatinbulak Formation

Khatinbulak Fm

Period:

Silurian

Age Interval:

Wenlock-Ludlow, N2

Province:
Nuratau

Type Locality and Naming

Along the Khatinbulak spring in Aydynsay, North Nuratau Range. I.A. Kim, S.K. Piven, O.B. Ivanova (1987f.). Stratotype on the southern slope of Mount Merishkor, north of the village of Chashma-Zrak.

Synonym: Khatynbulak Suite, Хатинбулакская св., Khetynbulaq suite.

Lithology and Thickness

Upper part is massive limestones.

Lower part – sparitic, crinoidal, interbedded clayey siltstones and limestones. Thickness 120 m.

Lithology Pattern:

Clayey limestone

Relationships and Distribution

Lower contact

Lower boundary tectonic.

Upper contact

Upper boundary normal with the overlying Chaltash Fm (460).

Regional extent

North Nuratau Range, southern slope of Mount Merishkor.

GeoJSON

null

Fossils

Contains brachiopods – Atrypoidea sp., Atrypinella pseudogranulifera Miz., Gypidula incipiens Barr., Conchidium ex gr. biloculare Sow., Clorinda pseudolinguifera Kozl., Cyrtia exporecta Wabl.; tabulate corals – Palaeofavosites asiaticusChekh.; graptolites – Haloretiolites (Balticograptus) aff. lawsoni Hah. et Hl., Pristiograptus ex gr. Dubius (Suess), P. cf. jageri, P. cf. tumescous (Wood.), Saetograptus leintwardinensis (Hork.), S. chimaera (Barr.), S. daristanensis Abd., Bohemograptus bohemicus (Barr.), and others.

Age

Age Span:

Beginning stage:

Homerian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

430.62

Ending stage:

Gorstian

Fraction up in the ending stage:

1.0

Ending date (Ma):

425.01

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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