Al Gata Chalk Tripolitania And Sirte Basin Fm
    Period: 
    
  
  
      Paleogene    
    
    Age Interval: 
    
          
    
  
  
    Province: 
    
  
  
      Libya    
    Type Locality and Naming
      Column: Tripolitania And Sirte Basin    
    Lithology and Thickness
      Al Gata Chalk Fm  LITHOLOGY= Highly variable lithology, from marls, clays, gypsums to fossiliferous limestone. Quartz geodes present in the Wadi Bu ash Shaykh region.   CALIBRATION = Base of the Leutetian.  REFERENCE = Chart derived from: USGS Correlation Chart and Columnar Section for Rocks in Libya, 1963. Descriptions from: Hallet, Don: Petroleum Geology of Libya, 2002.    
    
    Lithology Pattern: 
    
   
  
  
      Shallow-marine marl    
    Relationships and Distribution
Lower contact
Upper contact
Regional extent
GeoJSON
      {"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[19,30],[18,29],[19,28],[20,29],[19,30]]]]}}    
    Fossils
Age
     Age Span: 
    
          
    
  
  
        Beginning stage: 
    
  
  
      Lutetian    
    
        Fraction up in beginning stage: 
    
  
  
      0    
    
        Beginning date (Ma): 
    
  
  
      48.07    
    
        Ending stage: 
    
  
  
      Lutetian    
    
        Fraction up in the ending stage: 
    
  
  
      0.5    
    
        Ending date (Ma):  
    
  
  
      44.55    
    Depositional setting
    Depositional pattern:  
    
          
    
   
  Additional Information
      long: 19 lat: 29    
    
    Compiler: