Nychkedyilgin Fm
Period:
Triassic
Age Interval:
Olenekian-Anisian (T1-2), E-Psh2
Province:
East Tajik (East Pamir)
Type Locality and Naming
Includes in East Pshart (southern slope)
Synonym: Nychkedyilgin layer, Ничкеджилгинская толща
Reference section:
Lithology and Thickness
It is composed of irregularly alternating dark gray clay and phyllite-like slates, sandstones, siltstones, cherts, and greenstone-altered basic volcanics. (250-400 m)
Lithology Pattern:
Clayey sandstone
Relationships and Distribution
Lower contact
The layer lies with an unclear contact on the limestones and siliceous slates of the Kuberkandinsky horizon Fm - Pamirokoy horizon Fm
Upper contact
It is overlain by the Muzdubulak Fm sandy-conglomerate Carnian layer in conformity.
Regional extent
It is developed on the southern slope of the eastern part of the Pshart Range, in the basin of the Nychkedyilga and Muzdubulak rivers.
GeoJSON
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Fossils
Age
Two layers are conditionally referred to the Lower-Middle Triassic by B.I. Dranov as a result of works in 1964-1968. Hence considered Olenekian-Anisian
Age Span:
Beginning stage:
Olenekian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
249.88
Ending stage:
Anisian
Fraction up in the ending stage:
1.0
Ending date (Ma):
241.46
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Extracted from Baratov, R. B. (1976). Subdivisions of stratified and intrusive rocks of Tajikistan. Donish, Dushanbe, 276.