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Serikagni Formation
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Serikagni Fm base reconstruction

Serikagni Fm


Period: 
Neogene

Age Interval: 
Chattian – Burdigalian, Iq2


Province: 
Iraq

Type Locality and Naming

Column: Central Iraq

Synonym:


Lithology and Thickness

Comprises globigerinal chalky limestone. Using "chalk" pattern for TSCreator. Interfingers with Euphrates. 150m at type section.


Lithology Pattern: 
Chalk


Relationships and Distribution

Lower contact

Regionally, the schematic strat column indicates the next older unit as Kirkuk Gr

Upper contact

Regionally, the schematic strat column indicates the next younger unit as Euphrates Fm

Regional extent


GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[42.42,37.07],[43.76,36.44],[44.08,35.68],[43.17,35.17],[42.06,34.67],[42.05,32.37],[42.7,30.81],[44.68,29.26],[46.51,29.12],[47.22,30.15],[48.23,30.02],[48.38,30.15],[48.02,30.47],[47.99,30.95],[47.67,30.97],[47.84,31.83],[46.46,32.88],[46.07,32.97],[45.39,33.98],[45.79,35.12],[44.62,36],[43.2,37.3],[42.42,37.07]]]]}}

Fossils

Fossils are mainly planktonic, due to offshore deposition.


Age 

Chattian – Burdigalian

Age Span: 

    Beginning stage: 
Chattian

    Fraction up in beginning stage: 
0.9

    Beginning date (Ma): 
23.46

    Ending stage: 
Burdigalian

    Fraction up in the ending stage: 
0.2

    Ending date (Ma):  
19.56

Depositional setting

Offshore deposition.


Depositional pattern:  


Additional Information


Compiler:  

From S. Z. Jassim and J. C. Goff, Geology of Iraq, 2006. pg 156, Fig. 14-2: "Stratigraphic correlation of formations of Megasequence AP11 (Excluding the Quaternary)."