Zirabulak-Ziaetdin other local Fm
Period:
Devonian
Age Interval:
Frasnian, Z5a
Province:
Zarafshan-N.Gissar
Type Locality and Naming
Named after Mount Ayrybel, Zirabulak Mountains. Northern K. Piven, I. A. Kim, O. B. Ivanova, 1984.
Synonym: Ayrybel Suite, Айрыбельская св.
Lithology and Thickness
Limestones are fine- and cryptocrystalline, layered with rare layers of clayey-dolomitic and clayey-siliceous rocks. Thickness 200m.
Lithology Pattern:
Limestone
Relationships and Distribution
Lower contact
Relationships with underlying and overlying deposits are tectonic
Upper contact
Relationships with underlying and overlying deposits are tectonic
Regional extent
Traced as a narrow strip from west to east within the central part of the Ayrybel Mountains in the form of tectonic wedges within the contour of the development of Lower Devonian deposits.
GeoJSON
null
Age
Devonian, Frasnian
Age Span:
Beginning stage:
Frasnian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
378.90
Ending stage:
Frasnian
Fraction up in the ending stage:
1.0
Ending date (Ma):
371.10
Depositional setting
Depositional pattern:
Additional Information
Compiler:
A. I. Kim – In: GeoGPT translation of: “Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian)”