Arukfan Fm
Period:
Paleogene
Age Interval:
Middle Paleocene; K1, D1, S5
Province:
SW Tajik, North Tajik
Type Locality and Naming
Includes in Khation Region, Darvaz District, and Sughd Region
Synonym:
Lithology and Thickness
Grey calcareous mudstones, marls and limestones, gypsum beds and dolomite at the top. 0 to 60 m.
Lithology Pattern:
Shallow-marine marl
Relationships and Distribution
Lower contact
Overlies the limestone of the Tabakcha Fm.
Upper contact
The top portion of dolomite is overlain by the marl of the Karatag Fm.
Regional extent
Afghan-Tajik Basin.
GeoJSON
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Fossils
Molluscs
Age
Middle Paleocene; placed as Selandian for graphic purposes
Age Span:
Beginning stage:
Selandian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
61.66
Ending stage:
Selandian
Fraction up in the ending stage:
1.0
Ending date (Ma):
59.24
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.