Sangalt Fm
Period:
Carboniferous
Age Interval:
upper Visean-lower Serpukhovian, Z2
Province:
Zarafshan-N.Gissar
Type Locality and Naming
Named after the Sangal't River, Gissar Ridge. V. D. Saltovskaya, 1969 (403, p. 44). Stratotype in the valley of the Zidda River.
Synonym: Sangal't Suite, Сангальтская св.
Lithology and Thickness
Oolitic and organogenic limestones. Thickness 100-150m.
Lithology Pattern:
Oolitic limestone
Relationships and Distribution
Lower contact
Conformably overlies the Yakarchin Fm
Upper contact
Conformably overlain by the Snezhnin Fm (460)
Regional extent
In the form of separate strips in the Chakykalyan-North Gissar region on the northern slope of the Gissar Ridge.
GeoJSON
null
Fossils
With upper Visean-lower Serpukhovian foraminifers - Eostaffella mosquensis Viss., Asteroarchaediscus baschkiricus (Kres. et Theod.), A. ovoides Raus., Neoarchaediscus sp., Tetrataxis gigas Brazhn.; brachiopods - Productus consinnus Sow., Eomarginifera schartimiensis Jan.
Age
In the Stratigraphic Table (439) it is assigned to the upper Visean.
Age Span:
Beginning stage:
Visean
Fraction up in beginning stage:
0.5
Beginning date (Ma):
338.54
Ending stage:
Serpukhovian
Fraction up in the ending stage:
0.5
Ending date (Ma):
326.87
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)”