Ares Vallis

E410421

Ares Vallis is an ancient outflow channel on Mars, notable as a geologically diverse floodplain that was explored in situ by NASA’s Mars Pathfinder mission.

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All labels observed (3)

Statements (48)

Predicate Object
instanceOf Martian outflow channel
valley on Mars
associatedWith evidence for a warmer, wetter early Mars
catalogDesignation Ares Vallis self-linksurface differs
surface form: USGS Martian feature name: Ares Vallis
connectedTo Chryse Planitia
containsFeature channel bars
rocky floodplain
rounded pebbles and cobbles
scoured surfaces
coordinateLatitude approximately 19.1°N
coordinateLongitude approximately 33.0°W
erosionalStyle outflow-channel morphology
evidenceSuggests past catastrophic floods with high discharge rates
exploredByMission Mars Pathfinder
formedByProcess catastrophic flooding
fluvial erosion
geologicalAge Noachian
surface form: Noachian-Hesperian
hasApproximateLength hundreds of kilometers
hasApproximateWidth tens of kilometers
identifiedAs potential ancient river system
investigatedByInstrument Mars Pathfinder Imager for Mars Pathfinder (IMP)
APXS (Alpha Particle X-ray Spectrometer)
surface form: Sojourner rover APXS
landingDate 1997-07-04
landingSiteOf Mars Pathfinder
surface form: Mars Pathfinder lander

Mars Pathfinder
surface form: Sojourner rover
locatedInHemisphere Martian northern hemisphere
locatedInQuadrangle Margaritifer Sinus quadrangle
locatedInRegion Chryse Planitia
surface form: Chryse Planitia region
locatedOnPlanet Mars
namedAfter Ares
surface form: Ares, the Greek god of war
notableFor evidence of ancient water flow
geological diversity
observedByOrbiter Mars Global Surveyor
Mars Reconnaissance Orbiter
Viking Orbiter
receivesFlowFrom Simud Vallis
Tiu Vallis
scientificSignificance ground-truth calibration site for orbital data
key site for studying Martian hydrology
studiedFor evidence of past fluvial activity
sedimentary processes on Mars
surfaceComposition basaltic rocks
dust and soil rich in silicates
surfaceFeatureType ancient outflow channel
floodplain
terrainCharacter heavily eroded channel floor
scattered boulders and rock fields
usedAs reference site for comparative planetology studies

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

Mars Pathfinder landingSite Ares Vallis
Ares Vallis catalogDesignation Ares Vallis self-linksurface differs
this entity surface form: USGS Martian feature name: Ares Vallis
Chryse Planitia containsFeature Ares Vallis
this entity surface form: Ares Vallis outflow channel