Birba Fm
Period:
Ediacaran
Age Interval:
latest Ediacaran, On1
Province:
Oman
Type Locality and Naming
Column: Oman Subsurface.
Synonym: Ara A2 Carb, Ara A2 Evap, Ara A1 Carb, Ara A1 Evap, Ara A0 Carb
Lithology and Thickness
Alternating bands of Limestone and Anhydrite.
Lithology Pattern:
Evaporite
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Nafun Gr
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Karim Fm
Regional extent
GeoJSON
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Fossils
Age
Latest Ediacaran
Age Span:
Beginning stage:
Ediacaran
Fraction up in beginning stage:
0.9
Beginning date (Ma):
548.42
Ending stage:
Ediacaran
Fraction up in the ending stage:
0.96
Ending date (Ma):
542.65
Depositional setting
Depositional pattern:
Additional Information
Compiler:
From Forbes, G.A., Hansen, H.S.M., and Shreurs, J., 2010. Lexicon of Oman: Subsurface Stratigraphy. Gulf Petrolink, 371 pp. (plus enclosures and CD); and Middle East Geological Timescale 2008 Al-Husseini, Journal of Middle East Petroleum Geosciences v 13. no. 4