Jarutex Fm
Period:
Jurassic
Age Interval:
upper Aalenian - lower Bajocian (J2 bj), M1
Province:
SE Tajik (SE Pamir)
Type Locality and Naming
It is distinguished in SE Murghab district, Mynkhadzhir type section
Synonym: Jarutexkaya suite
Reference section:
Lithology and Thickness
It is composed at the bottom of dark-colored clay slates and siltstones with beds of sandstone and limestone.
Lithology Pattern:
Clayey sandstone
Relationships and Distribution
Lower contact
Schematic stratigraphic column indicates the lower contact as Mynkhadzhir Fm
Upper contact
Schematic stratigraphic column indicates the upper contact as Karatumshu Fm
Regional extent
It is widespread in the Southeast Pamir.
GeoJSON
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Fossils
Rich in organic remains. Here are only lists of ammonites. From the lower part of the stage (Jarute Fm) - Darellella recticostata Buckm., Emileia brochii Sow., Sonninia cf. multicostata Buckm.
Age
upper Aalenian - lower Bajocian
Age Span:
Beginning stage:
Aalenian
Fraction up in beginning stage:
0.8
Beginning date (Ma):
171.66
Ending stage:
Bajocian
Fraction up in the ending stage:
0.2
Ending date (Ma):
170.35
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Extracted from Baratov, R. B. (1976). Subdivisions of stratified and intrusive rocks of Tajikistan. Donish, Dushanbe, 276.