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
Arkahawl Formation
Click to display on map of the Ancient World at:
Arkahawl Fm base reconstruction

Arkahawl Fm


Period: 
Cryogenian

Age Interval: 
Cryogenian, On (1,2)


Province: 
Oman

Type Locality and Naming

Column: Oman Subsurface, Oman Outcrop; Middle formation in Abu Mahara Gr

Synonym:


Lithology and Thickness

Claystone and Sandstone


Lithology Pattern: 
Clayey sandstone


Relationships and Distribution

Lower contact

Regionally, the schematic strat column indicates the next older unit as Ayn-Ghubrah Fm

Upper contact

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

Regional extent


GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[56.61,25.9],[56.59,25.95],[56.42,24.85],[57.05,24.04],[57.72,23.77],[58.58,23.65],[59.12,22.75],[59.82,22.49],[58.43,22.8],[57.2,22.86],[56.15,23.49],[56.21,21.16],[54.98,19.52],[53.67,17.21],[53.35,16.9],[53.71,16.37],[55.1,16.58],[57.6,17.33],[58.17,17.22],[58.18,18.81],[60.41,21.35],[60.22,22.98],[56.61,25.9]]]]}}

Fossils


Age 

Early Cryogenian?

Age Span: 

    Beginning stage: 
Cryogenian

    Fraction up in beginning stage: 
0.1

    Beginning date (Ma): 
711.50

    Ending stage: 
Cryogenian

    Fraction up in the ending stage: 
0.2

    Ending date (Ma):  
703.00

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

From Forbes, G.A., Hansen, H.S.M., and Shreurs, J., 2010. Lexicon of Oman: Subsurface Stratigraphy. Gulf Petrolink, 371 pp. (plus enclosures and CD); and Middle East Geological Timescale 2008 Al-Husseini, Journal of Middle East Petroleum Geosciences v 13. no. 4