Ayn-Ghubrah Fm
    Period: 
    
  
  
      Cryogenian    
    
    Age Interval: 
    
  
  
      Cryogenian, On (1,2)
    
    Province: 
    
  
  
      Oman    
    Type Locality and Naming
Lithology and Thickness
Sandstone
    Lithology Pattern: 
    
   
  
  
      Sandstone
    
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Basement
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Arkahawl 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
      Cryogenian    
    
     Age Span: 
    
          
    
  
  
        Beginning stage: 
    
  
  
      Cryogenian    
    
        Fraction up in beginning stage: 
    
  
  
      0.3    
    
        Beginning date (Ma): 
    
  
  
      694.50    
    
        Ending stage: 
    
  
  
      Cryogenian    
    
        Fraction up in the ending stage: 
    
  
  
      0.5    
    
        Ending date (Ma):  
    
  
  
      677.50    
    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