| gptkbp:instanceOf | gptkb:geological_formation 
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                                | gptkbp:age | gptkb:Hesperian Amazonian
 
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                                | gptkbp:composition | gptkb:geological_formation gptkb:volcanic_activity
 tuff
 
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                                | gptkbp:contains | sulfate minerals ice deposits
 chloride minerals
 
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                                | gptkbp:discoveredBy | gptkb:Viking_Orbiter 
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                                | gptkbp:extendsTo | gptkb:Amazonis_Planitia Aeolis region
 
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                                | gptkbp:hasFeature | craters dunes
 valleys
 channels
 fractures
 ridges
 smooth plains
 buttes
 mesas
 gullies
 pitted terrain
 layered deposits
 yardangs
 scarps
 bright dust deposits
 collapsed terrain
 dark sand deposits
 dust mantling
 fossae (troughs)
 layered outcrops
 massive outcrops
 steep scarps
 wind streaks
 wind-eroded ridges
 
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                                | gptkbp:length | over 5,000 km 
 | 
                        
                            
                                | gptkbp:locatedOn | gptkb:Mars 
 | 
                        
                            
                                | gptkbp:namedAfter | gptkb:Medusa 
 | 
                        
                            
                                | gptkbp:notableFor | low density yardangs
 highly porous material
 unusual erosional features
 
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                                | gptkbp:originatedIn | gptkb:volcanic_activity aeolian processes
 
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                                | gptkbp:region | equatorial Mars 
 | 
                        
                            
                                | gptkbp:studiedBy | gptkb:Mars_Reconnaissance_Orbiter gptkb:Mars_Global_Surveyor
 gptkb:Mars_Odyssey
 
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                                | gptkbp:surface | gptkb:Mars 
 | 
                        
                            
                                | gptkbp:thickness | up to 2.5 km 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:Aeolis_quadrangle gptkb:Amazonis_Planitia
 
 | 
                        
                            
                                | gptkbp:bfsLayer | 7 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | Medusae Fossae Formation 
 |