Shut Fm
Period:
Devonian
Age Interval:
Pragian (D1), C1a
Province:
Central W Tajik
Type Locality and Naming
It is represented in the Obisafit type section, обисафитским
Synonym: обисафитским, Shutska suite
Reference section:
Lithology and Thickness
It is represented by light gray and white massive limestones with a thickness of 100-500 m.
Lithology Pattern:
Limestone
Relationships and Distribution
Lower contact
Upper contact
Regional extent
It is widespread in the Zarafshan-Gissar region.
GeoJSON
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Fossils
with organic remains from the upper part of the Pragian stage. Among them are remnants of tabulates Dendropora macropora Dubat.; rugose corals Neomphyma originata Soshk., ter), Stereophyllum massivum Soshk., Farabophyllum intermedium Lavrus. and brachiopods Karpinskia conjugula Tchern., Sieberella sieberi Buch.
Age
Pragian from the fossil data
Age Span:
Beginning stage:
Pragian
Fraction up in beginning stage:
0.3
Beginning date (Ma):
411.83
Ending stage:
Pragian
Fraction up in the ending stage:
1.0
Ending date (Ma):
410.51
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Extracted from Baratov, R. B. (1976). Subdivisions of stratified and intrusive rocks of Tajikistan. Donish, Dushanbe, 276.