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

Khanakin Formation

Khanakin Fm

Period:

Permian

Age Interval:

Late Permian-Early Triassic, B1, B2

Province:
Bukhara-SW Gissar

Type Locality and Naming

Named after the Hanaka River, southern slope of the Gissar Range. M.S. Shvetsov, 1927 (505, p. 297). Stratotype along the Hanaka River.

Synonym: Khanakinskaya Suite, Ханакинская св.

Lithology and Thickness

Red-colored sandstones, gravelites, conglomerates, conglomerate-breccias with layers of siltstone (aleurolites), tuffs of rhyolites, tuffites. Thickness is 160m (in Str. sl. (439) - 400-1200m).

Lithology Pattern:

Coarse-grained sandstone

Relationships and Distribution

Lower contact

It has tectonic or unconformable contacts with underlying formations. Beyond the borders of Uzbekistan, it lies with angular unconformity on the eroded surface of Lower Permian volcanogenic (?) and older formations.

Upper contact

It is overlain with erosion and angular unconformity by the Sandzhar Fm.

Regional extent

Gissar Range.

GeoJSON

null

Fossils

In the lower part, Gissarella schamolensis Sixt., Bardella splendida Zal., Ullmannia bronii Goepp, etc. were found, and in the upper part - Pseudovoltzia liebeana (Gein.), Sphenopteridium brickianae Sixt., Araucarites dushanbensis Sixt., etc. V.S. Luchnikov (276)

Age

There are several opinions about the age of the X. suite. M.S. Shvetsov (505) attributed it to the Triassic. T.A. Sixtel (409) first found and studied plant remains in the stratotype section (basin of the Khanaka River), which allowed her to provide a paleontological basis for the Late Permian-Early Triassic age of the deposits. Fossil data establishes a Middle-Late Triassic age for the suite; A.S. Masumov (291) considers it Early Permian; O.N. Nikitina et al. (1993) - Lower Triassic; L.V. Kushnary (439) - Upper Permian-Lower Triassic; the decision of the editorial board of the State Geological Map-500 of Uzbekistan (460) - Permian, closer not determined.

Age Span:

Beginning stage:

Wuchiapingian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

259.55

Ending stage:

Olenekian

Fraction up in the ending stage:

1.0

Ending date (Ma):

246.70

Depositional setting

Depositional pattern:

Additional Information

Compiler:

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