Ravat-Carb Fm
Period:
Carboniferous
Age Interval:
Visean, Z4
Province:
Zarafshan-N.Gissar
Type Locality and Naming
Along the Ravat stream, eastern end of the Kara-Tyube Mountains. V.S. Korsakov in 1990 (1993). Previously, these deposits were considered part of the Tym Fm (Korsakov et al., 1984).
Synonym: Ravat Suite, Раватская св.
Lithology and Thickness
Clayey, carbonaceous-clayey, and silty (aleurolitic) slates with layers of sandstones, gravelites, conglomerates, and, rarely, limestones. Thickness is more than 600 m.
Lithology Pattern:
Sandy_claystone
Relationships and Distribution
Lower contact
Schematic stratigraphic column indicates the lower contact as Tashkurgan Fm with erosion
Upper contact
Schematic stratigraphic column indicates the upper contact as Karatepin-Carb Fm
Regional extent
Eastern end of the Kara-Tyube Mountains. Relationships with surrounding deposits are tectonic (460).
GeoJSON
null
Fossils
Age
Early Carboniferous age is determined by lithological comparison with the Tym Fm of the Zirabulak-Ziaztdin Mountains.
Age Span:
Beginning stage:
Visean
Fraction up in beginning stage:
0.0
Beginning date (Ma):
346.73
Ending stage:
Visean
Fraction up in the ending stage:
1.0
Ending date (Ma):
330.34
Depositional setting
Depositional pattern:
Additional Information
Compiler:
B.B. Muxaŭlov – In: GeoGPT translation of: “Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian)”