Shumtau Fm
Period:
Paleogene
Age Interval:
Rupelian, F4
Province:
Fergana
Type Locality and Naming
Along the Shumtaus ridge, northern Akbel mountain, northwest Fergana. I.V. Plechenco, A.K. Voronkov, 1965 (347, p.32-33). The term is not used.
Synonym: Shumtau Suite, Шумтауская св.
Lithology and Thickness
Red-colored aleuritic clays and clayey siltstone (aleurolites) with layers of sandstones. Thickness 750m
Lithology Pattern:
Clayey sandstone
Relationships and Distribution
Lower contact
Underlying deposits are not specified.
Upper contact
Along the overlay, it is covered by the Bardamtul Fm
Regional extent
Northwest Fergana.
GeoJSON
null
Fossils
Along A.A., it belongs to the lower Oligocene (444). Along B.I. Pinhasov, it corresponds to the Oligocene-Miocene red-colored molasse formation of the Lower Tien Shan Gr, which in Fergana are represented by the Sumsar-Paleog Fm and Mailisay Fm.
Age
Rupelian
Age Span:
Beginning stage:
Rupelian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
33.90
Ending stage:
Rupelian
Fraction up in the ending stage:
1.0
Ending date (Ma):
27.29
Depositional setting
Depositional pattern:
Additional Information
Compiler:
B.I. Pinhasov – In: GeoGPT translation of: “Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian)”