Aksu Fm
Period:
Cretaceous
Age Interval:
Middle Aptian, B2
Province:
Bukhara-SW Gissar
Type Locality and Naming
Along the Aksu stream, between the Kafirnigan and Vakhsh rivers. Yu.N. Andreyev, 1966 (366, p. 44). Stratotype along the Aksu stream, Daganakiik ridge. Included in the Kaligrek Horizon (55; 191; 362; 452).
Synonym: Aksuy Formation, Аксуйская св., Aksuy Fm
Lithology and Thickness
Clays, siltstone (aleurolites) reddish-brown, spotted sandstones with gravelite interlayers. Thickness 78-110m.
Lithology Pattern:
Sandy_claystone
Relationships and Distribution
Lower contact
Lies with erosion on the Okuzbulak Fm
Upper contact
Overlain with erosion by the Karakuz suite.
Regional extent
South and central Gissar, Babatag ridge. Corresponds to the Kaligrek Fm and Gelandaryin Fm.
GeoJSON
null
Age
Belongs 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. Abdurazimova – In: GeoGPT translation of: “Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian)”