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

Gelandaryin Formation

Gelandaryin Fm

Period:

Cretaceous

Age Interval:

Middle Aptian, B1a

Province:
Bukhara-SW Gissar

Type Locality and Naming

Along the river Gelandarya, left tributary of the Aksu River, NW Gissar [might be SW]. I.M. Abdazimova, A.A. Trenbach (described for the first time). Stratotype on the left bank of the Aksu River, 3 km to the northeast from the mouth of its left tributary, the Talinush stream, 0.7 km to the northwest from the ruins of the village of Shilbi.

Synonym: Gelendar'inskaya Suite, Гелендаринская св., Gelandarin Fm, Gelandary Fm, Gelandarynskaya suite

Lithology and Thickness

Continental alluvial-proluvial breccias, conglomerates, conglomerate-breccias, at the top - clayey alites of a brownish-red color. Thickness 50-125 m.

Lithology Pattern:

Aus Conglomerate

Relationships and Distribution

Lower contact

It lies with erosion on the Okuzbulak Fm or with structural unconformity on Paleozoic rocks

Upper contact

It is overlain with erosion by the Karakuz Fm.

Regional extent

Northwestern? (might be Southwest) Gissar, along the left tributary of the Gelandarya River, exposed by boreholes.

GeoJSON

null

Fossils

Age

It is conditionally attributed to the middle Aptian.

Age Span:

Beginning stage:

Aptian

Fraction up in beginning stage:

0.35

Beginning date (Ma):

118.53

Ending stage:

Aptian

Fraction up in the ending stage:

0.5

Ending date (Ma):

117.30

Depositional setting

Depositional pattern:

Additional Information

Compiler:

I.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)”