Akrabat Fm
Period:
Cretaceous
Age Interval:
Upper Turonian (K21), K1, D1, C2, C2a, S3, S4, S5
Province:
SW Tajik, North Tajik, Central W Tajik
Type Locality and Naming
Includes in Khation Region, Sughd Region, Darvaz district, Dushanbe - west Shirkent-Luchob, Dushanbe - east Shirkent-Luchob.
Synonym: Akrobat Fm, Akrabat horizon, Akrobat horizon
Lithology and Thickness
In the Kafirnigan district, the Akrobat horizon consists of gray clays and marls with a thickness of 40-60 m, containing interbeds of shell limestones.
Lithology Pattern:
Shallow-marine marl
Relationships and Distribution
Lower contact
Overlies the Modun Fm.
Upper contact
Overlain by the Kattakamysh Fm.
Regional extent
Afghan-Tajik Basin.
GeoJSON
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Fossils
In the Akrabat beds in the Kafirnigan district, Hemiaster fourneli Desh., H. jacksoni Moury, and others have been found.
Age
Upper Coniacian
Age Span:
Beginning stage:
Coniacian
Fraction up in beginning stage:
0.5
Beginning date (Ma):
87.55
Ending stage:
Coniacian
Fraction up in the ending stage:
1.0
Ending date (Ma):
85.70
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Extracted from Baratov, R. B. (1976). Subdivisions of stratified and intrusive rocks of Tajikistan. Donish, Dushanbe, 276.