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Amud Formation
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Amud Fm base reconstruction

Amud Fm


Period: 
Cambrian, Ordovician

Age Interval: 
Cambrian Stage 10 – Tremadocian, Iq3, J1, T1


Province: 
Iraq, Jordan, Turkey

Type Locality and Naming

Column: Rutba Uplift (W Iraq), Column: NE Jordan, Column: SE Turkey

Synonym:


Lithology and Thickness

Coarse-grained sandstone with occasional shale beds


Lithology Pattern: 
Sandy_claystone


Relationships and Distribution

Lower contact

Regionally, the schematic strat column indicates this is the oldest unit in Rutba Uplift (W Iraq). Ajram Fm in NE Jordan. Sosink Fm in SE Turkey.

Upper contact

Regionally, the schematic strat column indicates the next younger unit as Khabour Fm in Rutba Uplift (W Iraq). Sahl As Suwwan in NE Jordan. Seydisehir Fm in SE Turkey.

Regional extent


GeoJSON

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Fossils


Age 

Cambrian Stage 10 – Tremadocian

Age Span: 

    Beginning stage: 
Cambrian Stage 10

    Fraction up in beginning stage: 
0.9

    Beginning date (Ma): 
487.27

    Ending stage: 
Tremadocian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
477.08

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

From S. Z. Jassim and J. C. Goff, Geology of Iraq, 2006. pg 92, Fig. 8-1: "Stratigraphic correlation of megasequences AP1 to AP5 for Iraq and surrounding countries."