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Arif el-Naga Formation
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Arif el-Naga Fm base reconstruction

Arif el-Naga Fm


Period: 
Triassic

Age Interval: 
Induan - Rhaetian, Eg2


Province: 
Egypt general

Type Locality and Naming

Column: Egypt general; Middle formation in Lower Clastic Division Gr

Synonym:


Lithology and Thickness

Sandy limestone. Sandstones with intercalating marl and limestones


Lithology Pattern: 
Sandy limestone


Relationships and Distribution

Lower contact

Regionally, the schematic strat column indicates the next older unit as Ataqa Fm

Upper contact

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

Regional extent

Distributed across Northern Sinai.


GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[31.86,29.75],[31.78,30.81],[29.94,31.06],[28.94,30.67],[26.09,31.46],[25.07,31.39],[25.15,30.59],[24.83,30.15],[25.2,29.03],[25.16,22.11],[33.41,22.08],[33.28,25.22],[32.94,25.99],[33.37,26.19],[32.5,26.85],[32.37,27.94],[31.8,28.33],[31.86,29.75]]]]}}

Fossils

Ammonites and other fossils.


Age 

Induan – Rhaetian

Age Span: 

    Beginning stage: 
Induan

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
251.90

    Ending stage: 
Rhaetian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
201.36

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

Said, R. The Geology of Egypt, 1962 pg. 19-20, 138.