Aral Fm
Period:
Neogene
Age Interval:
Miocene
Province:
Zaisan (Zaysan) Basin - Central
Type Locality and Naming
Synonym: Aralskaya, N1ar
Lithology and Thickness
Ca. 180 m of Calcareous monotonous grey compact clay with interbeds and lentils of marls. In the upper half of the section are inclusions of gypsum (crystals, small concretions).
Lithology Pattern:
Gypsiferous claystone
Relationships and Distribution
Lower contact
Overlies the Ashutas Fm with a very gradual contact.
Upper contact
Unconformably overlain by the Pavlodar Fm. Contact is sharp.
Regional extent
GeoJSON
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Fossils
Age
Miocene (indicated as spanning the Lower, Middle and Upper Miocene)
Age Span:
Beginning stage:
Aquitanian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
23.04
Ending stage:
Messinian
Fraction up in the ending stage:
1.0
Ending date (Ma):
5.34
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Information provided by Nariman Jamikeshev from Kazakh-language sources and from other publications.