Bukhara-Fergana Fm
Period:
Paleogene
Age Interval:
late Paleocene, S2, S3
Province:
North Tajik
Type Locality and Naming
Includes in Fergana Valley, Isfara River
To avoid confusion with the Bukhara Fm in the central-East Tajik region, "Fergana" is appended to the Bukhara name here.
Synonym: Bukhara Fm
Lithology and Thickness
In Alai-Fergana basin, it is limestones, evaporite beds and white sandstones with thin calcareous mudstone layers. 20-80 m.
Lithology Pattern:
Sandy limestone
Relationships and Distribution
Lower contact
Upper contact
Alai beds Fm
Regional extent
Fergana Basin and Alai Valley Basin
GeoJSON
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Fossils
Bivalves and gastropods.
Age
Late Paleocene
Age Span:
Beginning stage:
Selandian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
61.66
Ending stage:
Thanetian
Fraction up in the ending stage:
1.0
Ending date (Ma):
56.00
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Bosboom, R., Mandic, O., Dupont‐Nivet, G., Proust, J. N., Ormukov, C., & Aminov, J. (2017). Late Eocene palaeogeography of the proto‐Paratethys Sea in Central Asia (NW China, southern Kyrgyzstan and SW Tajikistan). Geological Society, London, Special Publications, 427, 565–588. https://doi.org/10.1144/SP427.11.