Kommunar Fm
Period:
Permian
Age Interval:
Upper Permian (P2 m), Ka1
Province:
NE corner Tajik
Type Locality and Naming
It is distinguished in 1968 by E.F. Romanenko and E.S. Chernykh.
Synonym: Kommunarskaya suite, Коммунарская свита
Reference section:
Lithology and Thickness
It is represented by black layered limestones of 800 m thickness with interlayers of clay slates, sandstones, and conglomerates.
Lithology Pattern:
Limestone
Relationships and Distribution
Lower contact
Conformably underlies Ushbin Fm
Upper contact
The Baigashkin Fm conformably overlies the Kommunar Fm
Regional extent
It is widespread in the Karakulsky district, in the Kommunarsky and Zulumart ranges.
GeoJSON
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Fossils
In the limestones, Murgab Nankinella orientalis K. M.-Maclay, Neoschwagerina cf. crimea Toum., N. cf. margaritae Depr., Verbeekina verbeeki (Gein.), Sumatrina sp. were found.
Age
Upper Permian
Age Span:
Beginning stage:
Wuchiapingian
Fraction up in beginning stage:
0.8
Beginning date (Ma):
255.30
Ending stage:
Changhsingian
Fraction up in the ending stage:
0.5
Ending date (Ma):
253.07
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Extracted from Baratov, R. B. (1976). Subdivisions of stratified and intrusive rocks of Tajikistan. Donish, Lakhsh district, 276.