Grenville Province of the Canadian Shield
E803324
The Grenville Province of the Canadian Shield is a vast, ancient geological region in eastern North America composed of deeply metamorphosed and deformed rocks that record the assembly of the supercontinent Rodinia.
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
geological province
ⓘ
tectonic province ⓘ |
| ageRangeMa | 1300–980 Ma ⓘ |
| borders |
Nain Province of the Canadian Shield
NERFINISHED
ⓘ
Superior Province of the Canadian Shield NERFINISHED ⓘ |
| characterizedBy |
deep metamorphism
ⓘ
intense deformation ⓘ |
| contains |
Adirondack Highlands
NERFINISHED
ⓘ
Adirondack Lowlands NERFINISHED ⓘ Central Metasedimentary Belt NERFINISHED ⓘ Labrador segment ⓘ Ottawa River segment ⓘ Parry Sound domain NERFINISHED ⓘ |
| country | Canada ⓘ |
| economicGeology |
hosts iron deposits
ⓘ
hosts rare‑earth‑element deposits ⓘ hosts titanium deposits ⓘ |
| extendsAcross |
Appalachian subsurface
ⓘ
Labrador NERFINISHED ⓘ New York State NERFINISHED ⓘ Ontario NERFINISHED ⓘ Quebec NERFINISHED ⓘ |
| extendsInto | United States NERFINISHED ⓘ |
| formedDuring | Grenville orogeny NERFINISHED ⓘ |
| forms | southeastern margin of the Canadian Shield ⓘ |
| geologicalAge |
Mesoproterozoic
ⓘ
Neoproterozoic NERFINISHED ⓘ |
| lithology | polydeformed crystalline basement ⓘ |
| locatedIn | eastern North America ⓘ |
| metamorphicGrade | amphibolite to granulite facies ⓘ |
| namedAfter | Grenville orogeny NERFINISHED ⓘ |
| orogenicStyle | continent–continent collision ⓘ |
| partOf | Canadian Shield NERFINISHED ⓘ |
| recordsEvent | assembly of the supercontinent Rodinia ⓘ |
| researchUse |
key area for studying Proterozoic tectonics
ⓘ
natural laboratory for collisional orogens ⓘ |
| rockType |
gneiss
ⓘ
granite ⓘ granulite ⓘ high‑grade metamorphic rocks ⓘ migmatite ⓘ |
| significance | records late Precambrian continental assembly processes ⓘ |
| structuralFeature |
fold belts
ⓘ
large‑scale thrust sheets ⓘ shear zones ⓘ |
| tectonicHistory |
accretion of arcs and microcontinents
ⓘ
long‑lived convergent margin ⓘ |
| tectonicSetting | collisional orogen ⓘ |
| underlies | parts of the Appalachian orogen ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.