Isidis Planitia region

E425514

impact basin plain

The Isidis Planitia region is a vast impact basin on Mars that hosts diverse geological features, including the Jezero Crater landing site of NASA’s Perseverance rover.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (2)

Label	Occurrences
Isidis Planitia	2
Isidis Planitia region canonical	1

How this entity was disambiguated

This entity first appeared as the object of triple T4151997 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Isidis Planitia region
Context triple: [Jezero Crater, locatedIn, Isidis Planitia region]

A. Meridiani Planum
Meridiani Planum is a flat, ancient plain on Mars notable for its layered sedimentary rocks and mineral evidence of past water, famously explored by NASA's Opportunity rover.
B. Chryse Planitia
Chryse Planitia is a broad, low-lying plain in Mars’s northern hemisphere that has served as a major landing site for robotic missions exploring the Martian surface.
C. Caloris Basin
Caloris Basin is one of the largest and youngest impact basins in the Solar System, forming a prominent multi-ringed geological feature on the planet Mercury.
D. Gale Crater
Gale Crater is a large impact crater on Mars that has been extensively explored for its layered geological history and past habitability clues.
E. Aeolis quadrangle
The Aeolis quadrangle is a region on Mars used in planetary mapping that includes notable features such as Gale Crater, the landing site of NASA’s Curiosity rover.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Isidis Planitia region
Target entity description: The Isidis Planitia region is a vast impact basin on Mars that hosts diverse geological features, including the Jezero Crater landing site of NASA’s Perseverance rover.

A. Meridiani Planum
Meridiani Planum is a flat, ancient plain on Mars notable for its layered sedimentary rocks and mineral evidence of past water, famously explored by NASA's Opportunity rover.
B. Chryse Planitia
Chryse Planitia is a broad, low-lying plain in Mars’s northern hemisphere that has served as a major landing site for robotic missions exploring the Martian surface.
C. Caloris Basin
Caloris Basin is one of the largest and youngest impact basins in the Solar System, forming a prominent multi-ringed geological feature on the planet Mercury.
D. Gale Crater
Gale Crater is a large impact crater on Mars that has been extensively explored for its layered geological history and past habitability clues.
E. Aeolis quadrangle
The Aeolis quadrangle is a region on Mars used in planetary mapping that includes notable features such as Gale Crater, the landing site of NASA’s Curiosity rover.
F. None of above. chosen

Statements (49)

Predicate	Object
instanceOf	impact basin ⓘ plain ⓘ
adjacentTo	Hellas Planitia region (to the south, more distant) ⓘ Syrtis Major Planum ⓘ Utopia Planitia ⓘ
age	Noachian ⓘ
associatedWithProcess	large impact basin modification by volcanism and sedimentation ⓘ
centerLatitude	approximately 12°N ⓘ
centerLongitude	approximately 87°E ⓘ
containsCrater	Jezero Crater ⓘ Moreux Crater ⓘ other smaller impact craters ⓘ
diameter	approximately 1500 km ⓘ
exploredByMission	NASA Perseverance rover (indirectly via Jezero Crater) ⓘ linked to: Perseverance rover
formsBoundaryWith	Martian highlands ⓘ linked to: Martian southern highlands Martian northern lowlands ⓘ
geologicalDiversity	aeolian landforms ⓘ fluvial features ⓘ impact structures ⓘ sedimentary deposits ⓘ volcanic units ⓘ
hostsFeature	Jezero Crater ⓘ Libya Montes ⓘ Nili Fossae ⓘ deltaic deposits in Jezero Crater ⓘ possible shoreline-like features ⓘ tectonic fractures ⓘ volcanic plains ⓘ
hostsLandingSite	Jezero Crater landing site of NASA Perseverance rover ⓘ
locatedInHemisphere	eastern hemisphere of Mars ⓘ
locatedInQuadrangle	Amenthes quadrangle ⓘ Iapygia quadrangle ⓘ
locatedOnPlanet	Mars ⓘ
mineralogy	carbonates in Jezero Crater region ⓘ phyllosilicates in and around Jezero Crater ⓘ
nameOrigin	named after classical albedo feature Isidis Regio ⓘ
observedByInstrument	CRISM ⓘ linked to: CRISM instrument CTX ⓘ HiRISE ⓘ linked to: HiRISE instrument
observedByMission	Mars Express ⓘ Mars Global Surveyor ⓘ Mars Reconnaissance Orbiter ⓘ
origin	impact structure ⓘ
partOf	Martian northern lowlands system ⓘ linked to: Martian lowlands
scientificInterest	evidence for past water activity ⓘ potential ancient habitable environments ⓘ record of early Martian crust and basin formation ⓘ
surfaceElevation	relatively low-lying compared to surrounding highlands ⓘ
tectonicFeatures	graben and fault systems such as Nili Fossae ⓘ

How these facts were elicited

Referenced by (3)

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

Jezero Crater → locatedIn → Isidis Planitia region ⓘ

Beagle 2 → landingRegion → Isidis Planitia ⓘ

subject linked to: Beagle 2 lander

linked to: Isidis Planitia region

Argyre Planitia → isDistinctFrom → Isidis Planitia ⓘ

subject linked to: Argyre Planitia region