Nuvvuagittuq Greenstone Belt
E803744
The Nuvvuagittuq Greenstone Belt is an ancient rock formation in northern Quebec, Canada, that contains some of the oldest known rocks on Earth, offering key insights into early crustal evolution and the conditions on the young planet.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Archean geological formation
ⓘ
greenstone belt ⓘ |
| ageEstimate |
about 4.28 billion years
ⓘ
older than 3.8 billion years ⓘ |
| containsRockType |
amphibolites
ⓘ
banded iron formations ⓘ gabbros ⓘ mafic volcanic rocks ⓘ sedimentary rocks ⓘ ultramafic rocks ⓘ |
| country | Canada ⓘ |
| disputedAspect |
exact age of formation
ⓘ
interpretation of oldest age as formation vs metamorphic age ⓘ |
| dominantLithology | mafic amphibolite ⓘ |
| formedByProcess |
oceanic crust formation
ⓘ
subduction-related volcanism ⓘ |
| geologicalAge |
Eoarchean
ⓘ
Hadean NERFINISHED ⓘ |
| hasDatingMethod |
Pb-Pb isotopic dating
ⓘ
Sm-Nd isotopic dating ⓘ U-Pb zircon dating ⓘ |
| hasMineral |
amphibole
ⓘ
feldspar ⓘ magnetite ⓘ pyroxene ⓘ quartz ⓘ sulfide minerals ⓘ |
| hasNameMeaning | "slowly moving" in Inuktitut ⓘ |
| knownFor |
containing some of the oldest known rocks on Earth
ⓘ
evidence of early oceanic crust ⓘ insights into early Earth crustal evolution ⓘ |
| languageOfName | Inuktitut NERFINISHED ⓘ |
| locatedIn |
Quebec
NERFINISHED
ⓘ
northern Quebec ⓘ |
| locatedNear | Hudson Bay NERFINISHED ⓘ |
| locatedOn | Superior Craton NERFINISHED ⓘ |
| locatedOnContinent | North America ⓘ |
| partOf | Canadian Shield NERFINISHED ⓘ |
| researchSignificance |
constrains timing of continental crust formation
ⓘ
provides clues to early ocean chemistry ⓘ records early Earth tectonic processes ⓘ used to study early Earth heat flow ⓘ |
| studiedBy |
geochemists
ⓘ
geochronologists ⓘ geologists ⓘ |
| underwentProcess |
deformation
ⓘ
high-grade metamorphism ⓘ hydrothermal alteration ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.