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Sarah Formation
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Sarah Fm base reconstruction

Sarah Fm


Period: 
Ordovician

Age Interval: 
Hirnantian, Sa (1,2), Iq3


Province: 
Saudi Arabia, Iraq

Type Locality and Naming

Column: Saudi Arabia Outcrop, Saudi Arabia Subsurface, Rutba Uplift (W Iraq)

Synonym:


Lithology and Thickness

Sandstone


Lithology Pattern: 
Sandstone


Relationships and Distribution

Lower contact

Regionally, the schematic strat column indicates the next older unit as Qasim Fm. In Rutba Uplift (W Iraq), it is Khabour Fm

Upper contact

Regionally, the schematic strat column indicates the next younger unit as Uqlah Fm. In Rutba Uplift (W Iraq) it is Akkas Fm

Regional extent


GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[39.45,32.74],[39.28,32.46],[39.42,32.13],[43.46,26.36],[45.18,24.09],[42.8,19.52],[43.31,19.05],[43.67,17.53],[44.35,19.47],[47.53,19.39],[48.12,21.49],[50.63,21.85],[51,23.96],[50.2,26.32],[50.83,26.34],[51.66,27.47],[49.89,30.05],[48.8,29.69],[48.58,28.47],[47.73,28.37],[47.42,28.86],[45.63,29.01],[44.28,28.4],[40.03,32.32],[39.95,32.63],[39.45,32.74]]]]}}

Fossils


Age 

Hirnantian

Age Span: 

    Beginning stage: 
Hirnantian

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
445.21

    Ending stage: 
Hirnantian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
443.07

Depositional setting

Glacial


Depositional pattern:  


Additional Information


Compiler:  

From Middle East Geological Timescale 2008 Al-Husseini, Journal of Middle East Petroleum Geosciences v 13, no. 4