Bayandor Fm
Period:
Ediacaran
Age Interval:
Ediacaran, Ir4
Province:
Iran
Type Locality and Naming
Column: Iran NW - Alborz
Synonym:
Lithology and Thickness
Unit of purple sandstone and shale with thin dolomite intercalations which contain chert nodules. The shales grade from purple to green at the base of the formation. Fossils include stromatolites.
Lithology Pattern:
Sandstone
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Kahar Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Soltanieh Fm
Regional extent
GeoJSON
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Fossils
Age
Ediacaran
Age Span:
Beginning stage:
Ediacaran
Fraction up in beginning stage:
0.45
Beginning date (Ma):
591.71
Ending stage:
Ediacaran
Fraction up in the ending stage:
0.8
Ending date (Ma):
558.04
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Middle East Geological Timescale 2008 Al-Husseini, Journal of Middle East Petroleum Geosciences v 13, no. 4