Ascraeus Mons

E482652

Ascraeus Mons is one of the largest shield volcanoes on Mars, towering above the Tharsis region with a broad, gently sloping profile.

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Observed surface forms (3)

Surface form Occurrences
Arsia Mons 1
Pavonis Mons 1
Tharsis Montes 1

Statements (49)

Predicate Object
instanceOf Martian volcano
mountain on Mars
shield volcano
associatedWith Martian tectonism
Tharsis rise NERFINISHED
extensive effusive volcanism
classification giant shield volcano of Tharsis Montes chain
contextRegion western hemisphere of Mars
coordinateSystem planetocentric coordinates on Mars
diameter approximately 400–500 km at base
discoveredBy Mariner 9 spacecraft imaging
discoveryEra early 1970s
elevation approximately 18 km above Martian datum
flankFeature collapse pits
graben structures
lava channels
lava tubes
radial lava flows
hasFeature extensive lava plains around base
fan-shaped deposits on flanks
possible glacial or periglacial landforms
steep summit scarp in places
hasLatitude approximately 11.9°N
hasLongitude approximately 255.5°E
heightAboveSurroundings about 14–18 km
imagedBy Mars Global Surveyor NERFINISHED
Mars Odyssey NERFINISHED
Mars Reconnaissance Orbiter NERFINISHED
Viking Orbiter NERFINISHED
isOneOf largest volcanoes in the Solar System
largest volcanoes on Mars
likelyLastActivity Amazonian period
locatedIn Tharsis region NERFINISHED
locatedOn Mars NERFINISHED
morphologicalType shield volcano with broad base
nameApprovalYear 1973
nameApprovedBy International Astronomical Union NERFINISHED
namedAfter Ascraeus (ancient Greek town in Boeotia) NERFINISHED
nearbyFeature Arsia Mons NERFINISHED
Pavonis Mons NERFINISHED
partOf Tharsis Montes NERFINISHED
Tharsis volcanic province NERFINISHED
relativeAge younger than surrounding Tharsis plains
slopeCharacter gently sloping flanks
studiedUsing MOLA topography data
summitCalderaeCount multiple overlapping calderae
summitFeature complex caldera system
surfaceComposition basaltic lava
volcanicActivityTimespan spanned much of Martian history

Referenced by (4)

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

Tharsis volcanic plateau contains Ascraeus Mons
Tharsis volcanic plateau contains Ascraeus Mons
this entity surface form: Pavonis Mons
Tharsis volcanic plateau contains Ascraeus Mons
this entity surface form: Arsia Mons
Tharsis volcanic plateau contains Ascraeus Mons
this entity surface form: Tharsis Montes