| Range of interest (m) | 
                                                                                            
                                                    1000.0                                                 | 
                                                                                            
                                                    1000.0                                                 | 
                                                                                            
                                                    1000.0                                                 | 
                                                                                    
                                                                            
                                            | Layer Number | 
                                                                                            
                                                    1                                                 | 
                                                                                            
                                                    2                                                 | 
                                                                                            
                                                    3                                                 | 
                                                                                    
                                                                            
                                            | Lithology | 
                                                                                            
                                                    volcanic rocks                                                 | 
                                                                                            
                                                    volcanic breccia                                                 | 
                                                                                            
                                                    lava                                                 | 
                                                                                    
                                                                            
                                            | Lithological class | 
                                                                                            
                                                    Pyroclastic material and lava                                                  | 
                                                                                            
                                                    Pyroclastic material (pyroclastite, tuff, ignimbrite)                                                 | 
                                                                                            
                                                    Pyroclastic material and lava                                                  | 
                                                                                    
                                                                            
                                            | Minimum Thickness (m) | 
                                                                                            
                                                                                                     | 
                                                                                            
                                                                                                     | 
                                                                                            
                                                                                                     | 
                                                                                    
                                                                            
                                            | Maximum Thickness (m) | 
                                                                                            
                                                                                                     | 
                                                                                            
                                                                                                     | 
                                                                                            
                                                                                                     | 
                                                                                    
                                                                            
                                            | Real Thickness (m) | 
                                                                                            
                                                    200.0                                                 | 
                                                                                            
                                                    800.0                                                 | 
                                                                                            
                                                    450.0                                                 | 
                                                                                    
                                                                            
                                            | Rock Mass Structure | 
                                                                                            
                                                    Cahotic                                                 | 
                                                                                            
                                                    Cahotic                                                 | 
                                                                                            
                                                    Cahotic                                                 | 
                                                                                    
                                                                            
                                            | Fractured | 
                                                                                            
                                                    None                                                 | 
                                                                                            
                                                    None                                                 | 
                                                                                            
                                                    yes                                                 | 
                                                                                    
                                                                            
                                            | Strata orientations, Strike (°) | 
                                                                                            
                                                                                                     | 
                                                                                            
                                                                                                     | 
                                                                                            
                                                                                                     | 
                                                                                    
                                                                            
                                            | Strata orientations, Dip (°) | 
                                                                                            
                                                                                                     | 
                                                                                            
                                                                                                     | 
                                                                                            
                                                                                                     | 
                                                                                    
                                                                            
                                            | Strata orientations, Slip (°) | 
                                                                                            
                                                                                                     | 
                                                                                            
                                                                                                     | 
                                                                                            
                                                                                                     | 
                                                                                    
                                                                            
                                            | Age of deposit Min | 
                                                                                            
                                                    Pleistocene                                                 | 
                                                                                            
                                                    Pleistocene                                                 | 
                                                                                            
                                                    Pleistocene                                                 | 
                                                                                    
                                                                            
                                            | Age of deposit Max | 
                                                                                            
                                                    Pleistocene                                                 | 
                                                                                            
                                                    Pleistocene                                                 | 
                                                                                            
                                                    Pleistocene                                                 | 
                                                                                    
                                                                            
                                            | Consistency | 
                                                                                            
                                                    Lithoid-incoherent                                                 | 
                                                                                            
                                                    Lithoid-incoherent-cohesive                                                 | 
                                                                                            
                                                    Lithoid                                                 | 
                                                                                    
                                                                            
                                            | Environmental Setting | 
                                                                                            
                                                    Other environment                                                 | 
                                                                                            
                                                    Other environment                                                 | 
                                                                                            
                                                    Other environment                                                 | 
                                                                                    
                                                                            
                                            | Compactness Degree | 
                                                                                            
                                                    None                                                 | 
                                                                                            
                                                    None                                                 | 
                                                                                            
                                                    None                                                 | 
                                                                                    
                                                                        
                                        |   | 
                                                                                    
                                                                                             | 
                                                                                    
                                                                                             | 
                                                                                    
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