Ammagan Fm
Period:
Neogene
Age Interval:
Upper Pliocene, B1a
Province:
Bukhara-SW Gissar
Type Locality and Naming
Along the village of Ammagan, foothills of the Gissar Range, Shurasan Anticline. G.Yu. Alferov et al., 1969. Stratotype in the area of the village of Ammagan.
Synonym: Ammagan Suite, Аммаганская св.
Lithology and Thickness
Alluvial-proluvial brown, brownish-brown, and mottled conglomerates, gravelites, sandstones, siltstone (aleurolites) with interlayers of marls. Thickness 550m.
Lithology Pattern:
Aus Conglomerate
Relationships and Distribution
Lower contact
Overlies the Shurasan suite with erosion
Upper contact
Overlain with erosion by the Guzar suite
Regional extent
Western foothills of the Gissar Range, interfluve of the Tanhyzdarya and Kyzyl-Darya rivers, Kashkadarya Depression.
GeoJSON
null
Age
A.A. consider it to be upper Pliocene.
Age Span:
Beginning stage:
Piacenzian
Fraction up in beginning stage:
0.5
Beginning date (Ma):
3.09
Ending stage:
Piacenzian
Fraction up in the ending stage:
1.0
Ending date (Ma):
2.58
Depositional setting
Depositional pattern:
Additional Information
Compiler:
B.I. Pinhasov – In: GeoGPT translation of: “Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian)”