Kurosawa Fm
    Period: 
    
  
  
      Permian    
    
    Age Interval: 
    
  
  
      Guadalpian (Capitanian), (8e)
    
    Province: 
    
  
  
      South Kitakami Belt-Okago region    
    Type Locality and Naming
Toyoma(Okago); North Kesennuma; South Kesennuma; Utatsu districts
Synonym:
Lithology and Thickness
mudstone is dominant in the lower part
[Figure 1: Stratigraphy of the Palaeozoic of the South Kitakatmi Belt, NE Japan (after M. Ehiro et al., 2016)]
    Lithology Pattern: 
    
   
  
  
      Claystone
    
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Kamiyasse Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Nabekoshiyama Fm
Regional extent
Toyoma(Okago); North Kesennuma; South Kesennuma; Utatsu districts
GeoJSON
      null    
    Fossils
Age
      Guadalpian (Capitanian)    
    
     Age Span: 
    
          
    
  
  
        Beginning stage: 
    
  
  
      Capitanian    
    
        Fraction up in beginning stage: 
    
  
  
      0.0    
    
        Beginning date (Ma): 
    
  
  
      264.34    
    
        Ending stage: 
    
  
  
      Capitanian    
    
        Fraction up in the ending stage: 
    
  
  
      1.0    
    
        Ending date (Ma):  
    
  
  
      259.55    
    Depositional setting
    Depositional pattern:  
    
      
    
   
  
Additional Information
    Compiler:  
    
  
      Moreno, T., WALLIS, S., Kojima, T. & Gibbons, W. (Eds) 2016. The Geology of Japan. Geological Society. London. 1-24.