Bostan Fm
Period:
Quaternary
Age Interval:
Middle Pleistocene to present
Province:
Pakistan Balochistan Basin, Pakistan Axial Belt
Type Locality and Naming
Holotype section: Kamroud village in Siahan Range- type section
Lithology and Thickness
Claystone to sandstone; lacustrine to playa
Thickness: 600-750 m thick.
Lithology Pattern:
Gypsiferous claystone
Relationships and Distribution
Lower contact
Unconformably overlies Shirinab Fm, Loralai Fm, Nisai Fm and Khojak Fm. Conformably underlain by Haro Conglomerate Fm (in Axial Belt)
Upper contact
Present surface
Regional extent
Axial Belt and Kakar-Khorasan Province (Balochistan Basin, between Afghanistan and Axial Belt)
GeoJSON
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Fossils
Age
Middle Pleistocene to present.
Age Span:
Beginning stage:
Chibanian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
0.77
Ending stage:
Holocene
Fraction up in the ending stage:
1.0
Ending date (Ma):
0.00
Depositional setting
Prodominantly lacustrine to playa
Depositional pattern:
Additional Information
Compiler:
Nusrat K. Siddiqui