Statements (20)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | 
                                    
                                        
                                            gptkb:glaciation_event
                                        
                                         | 
                            
| gptkbp:alsoKnownAs | 
                                    
                                        
                                            gptkb:Hirnantian_glaciation
                                        
                                         | 
                            
| gptkbp:associatedWith | 
                                    
                                        
                                            gptkb:Ordovician-Silurian_extinction_event
                                        
                                         | 
                            
| gptkbp:beganIn | 
                                    
                                        
                                            
                                            approximately 445 million years ago
                                        
                                        
                                         | 
                            
| gptkbp:cause | 
                                    
                                        
                                            
                                            global cooling
                                        
                                        
                                         sea level fall  | 
                            
| gptkbp:causedBy | 
                                    
                                        
                                            
                                            tectonic uplift
                                        
                                        
                                         decrease in atmospheric CO2  | 
                            
| gptkbp:centeredIn | 
                                    
                                        
                                            gptkb:Gondwana
                                        
                                         | 
                            
| gptkbp:endDate | 
                                    
                                        
                                            
                                            approximately 443 million years ago
                                        
                                        
                                         | 
                            
| gptkbp:evidence | 
                                    
                                        
                                            gptkb:Arabian_Peninsula
                                        
                                         gptkb:North_Africa gptkb:South_America  | 
                            
| gptkbp:followedBy | 
                                    
                                        
                                            gptkb:Silurian_greenhouse_period
                                        
                                         | 
                            
| gptkbp:occurredIn | 
                                    
                                        
                                            gptkb:Late_Ordovician_period
                                        
                                         | 
                            
| gptkbp:precededBy | 
                                    
                                        
                                            gptkb:Middle_Ordovician_warm_period
                                        
                                         | 
                            
| gptkbp:resultedIn | 
                                    
                                        
                                            
                                            mass extinction of marine species
                                        
                                        
                                         | 
                            
| gptkbp:bfsParent | 
                                    
                                        
                                            gptkb:Ordovician_Period
                                        
                                         | 
                            
| gptkbp:bfsLayer | 
                                    
                                        
                                            
                                            7
                                        
                                        
                                         | 
                            
| https://www.w3.org/2000/01/rdf-schema#label | 
                                    
                                        
                                            
                                            Late Ordovician glaciation
                                        
                                        
                                         |