Dulyangtash Fm
Period:
Jurassic
Age Interval:
upper Callovian (J3), M3a
Province:
SE Tajik (SE Pamir)
Type Locality and Naming
It is distinguished in the Southeast Pamir in the SE Murghab district (Gurumdin type section) of the Jurassic
Synonym: Dulyangtashskaya suite
Reference section:
Lithology and Thickness
Greenish-yellow marls. The total power of the sediments is 115 m.
Lithology Pattern:
Shallow-marine marl
Relationships and Distribution
Lower contact
Schematic stratigraphic column indicates the lower contact as Kokchukur Fm
Upper contact
Schematic stratigraphic column indicates the upper contact as Teshyktash Fm (volc) / Kurtekin Fm (Paleogene)
Regional extent
It is widespread in the Southeast Pamir.
GeoJSON
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Fossils
No organic remains have been found in them.
Age
upper Callovian
Age Span:
Beginning stage:
Callovian
Fraction up in beginning stage:
0.8
Beginning date (Ma):
162.28
Ending stage:
Callovian
Fraction up in the ending stage:
1.0
Ending date (Ma):
161.53
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Extracted from Baratov, R. B. (1976). Subdivisions of stratified and intrusive rocks of Tajikistan. Donish, Dushanbe, 276.