Imbrian period
E867322
The Imbrian period is a major lunar geologic era characterized by extensive mare volcanism and large impact basins that shaped much of the Moon’s visible surface.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
lunar geologic era
ⓘ
lunar geologic period ⓘ |
| associatedWith |
Imbrium basin formation
NERFINISHED
ⓘ
Orientale basin formation NERFINISHED ⓘ |
| characterizedBy |
extensive mare volcanism
ⓘ
formation of large impact basins ⓘ widespread basaltic lava flooding ⓘ |
| correlatesWith | heavy bombardment tail end in inner Solar System ⓘ |
| definedBy |
lunar impact stratigraphy
ⓘ
radiometric age dating of lunar samples ⓘ |
| distinguishedFrom |
Copernican period
ⓘ
Eratosthenian period NERFINISHED ⓘ Nectarian period NERFINISHED ⓘ Pre-Nectarian period ⓘ |
| EarlyImbrianApproximateAgeRange | 3.85–3.8 billion years ago ⓘ |
| evidenceFrom |
Apollo mission rock samples
ⓘ
lunar meteorites ⓘ |
| follows | Nectarian period NERFINISHED ⓘ |
| hasApproximateEndAge | 3.2 billion years ago ⓘ |
| hasApproximateStartAge | 3.85 billion years ago ⓘ |
| hasImpactCrateringActivity | declining compared to earlier periods ⓘ |
| hasKeyBasin |
Crisium basin
NERFINISHED
ⓘ
Humorum basin NERFINISHED ⓘ Imbrium basin NERFINISHED ⓘ Nubium basin NERFINISHED ⓘ Orientale basin NERFINISHED ⓘ Serenitatis basin NERFINISHED ⓘ Tranquillitatis basin NERFINISHED ⓘ |
| hasSubdivision |
Early Imbrian
NERFINISHED
ⓘ
Late Imbrian ⓘ |
| hasVolcanicActivity | peak mare basalt eruptions ⓘ |
| includesEvent |
formation of Mare Imbrium
ⓘ
formation of major lunar maria ⓘ |
| includesTerrainType |
mare plains
GENERATED
ⓘ
ringed impact basins GENERATED ⓘ |
| LateImbrianApproximateAgeRange | 3.8–3.2 billion years ago ⓘ |
| mappedUsing | lunar orbital imagery ⓘ |
| namedAfter | Mare Imbrium NERFINISHED ⓘ |
| occursOn | Moon NERFINISHED ⓘ |
| partOf | geologic history of the Moon ⓘ |
| precedes | Eratosthenian period NERFINISHED ⓘ |
| recognizedBy | International Commission on Stratigraphy for the Moon NERFINISHED ⓘ |
| shaped | much of the Moon’s visible surface ⓘ |
| startAfter | Nectaris basin formation NERFINISHED ⓘ |
| usedIn | lunar stratigraphic classification ⓘ |
| visibleOn | near side of the Moon ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.