Home Multi-Country Search About Admin Login
Cenozoic
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Early Paleozoic

Search by
Select Region(s) to search
Hold Ctrl (Windows/Linux) or Command (Mac) to select multiple
Um Bogma Formation
Click to display on map of the Ancient World at:
Um Bogma Fm base reconstruction

Um Bogma Fm


Period: 
Carboniferous

Age Interval: 
Tournaisian - Serpukhovian, Eg2


Province: 
Egypt general

Type Locality and Naming

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

Synonym:


Lithology and Thickness

Dolomitic limestone. Upper marine dolomites and limestones. Type section thickness of 170m.


Lithology Pattern: 
Dolomitic limestone


Relationships and Distribution

Lower contact

Regionally, the schematic strat column indicates the next older unit as Basement Complex Gr (Gattarian Plutonites Gr)

Upper contact

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

Regional extent


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

Brachiopods and crinoids found in this upper layer, while the basal sandstone unit is unfossiliferous.


Age 

Tournaisian – Serpukhovian

Age Span: 

    Beginning stage: 
Tournaisian

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
359.30

    Ending stage: 
Serpukhovian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
323.40

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

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