Adamtash Gr
Period:
Cretaceous
Age Interval:
upper Cenomanian-Coniacian, B1
Province:
Bukhara-SW Gissar
Type Locality and Naming
Along the village of Adamtash, Southwest Gissar. Kh.Kh. Mirkamalov, 1971 (51, p. 107).
Synonym: Adamta Ash Series, Адатмашская сер.
Lithology and Thickness
Marine and lagoon carbonate-clayey rocks.
Consists of (bottom to top): basal Gazdagan Fm, Chashmaobzan Fm, Dehkanabad Fm, Pachkamar Fm, and topmost Akrobat Fm.
Lithology Pattern:
Shallow-marine marl
Relationships and Distribution
Lower contact
Conformably overlies the Tarkapchigay Fm
Upper contact
Overlain by the Tally-Khumon Gr (Toychisay Fm).
Regional extent
Southwest Gissar.
GeoJSON
null
Fossils
Age
Belongs to the upper Cenomanian-Coniacian; according to A., to the Turonian-Coniacian.
Age Span:
Beginning stage:
Cenomanian
Fraction up in beginning stage:
0.75
Beginning date (Ma):
95.55
Ending stage:
Coniacian
Fraction up in the ending stage:
1.0
Ending date (Ma):
85.70
Depositional setting
Marine and lagoon
Depositional pattern:
Additional Information
Compiler:
A.M. Bogomolova – In: GeoGPT translation of: “Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian)”