Avalonia microcontinent
E89372
Avalonia microcontinent was a small ancient landmass that rifted from Gondwana and later collided with Laurentia and Baltica, contributing to the formation of parts of modern North America and Western Europe.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
ancient landmass
ⓘ
microcontinent ⓘ |
| activeDuringPeriod |
Early Paleozoic
ⓘ
Late Neoproterozoic ⓘ |
| alsoKnownAs | Avalonia ⓘ |
| boundedBy | major Paleozoic sutures ⓘ |
| collidedWith |
Baltica
ⓘ
Laurentia ⓘ |
| collisionClosedOcean | Iapetus Ocean ⓘ |
| collisionEventAgeApproximate | around 430–400 million years ago ⓘ |
| containsRockAges |
Cambrian
ⓘ
Neoproterozoic ⓘ Ordovician ⓘ Silurian ⓘ |
| contributedToFormationOf |
parts of Western Europe
ⓘ
parts of modern North America ⓘ |
| hostedMagmatismType |
arc-related magmatism
ⓘ
calc-alkaline volcanism ⓘ |
| importantFor |
reconstruction of Paleozoic plate motions
ⓘ
understanding formation of Appalachian–Caledonian mountain belt ⓘ |
| involvedInOrogeny |
Acadian orogeny
ⓘ
Caledonian orogeny ⓘ Variscan orogeny ⓘ |
| laterPartOf |
Euramerica
ⓘ
Laurussia ⓘ |
| locatedInGeologicPast | Southern Hemisphere ⓘ |
| movementDirectionAfterRifting | northward ⓘ |
| paleogeographicAffinity | peri-Gondwanan terrane ⓘ |
| partOfSupercontinentCycle | assembly of Laurussia ⓘ |
| presentDayRemnantsFoundIn |
Belgium
ⓘ
Netherlands ⓘ New Brunswick NERFINISHED ⓘ island of Newfoundland ⓘ
surface form:
Newfoundland
Nova Scotia ⓘ Poland ⓘ eastern North America ⓘ northern France ⓘ northern Germany ⓘ southern Ireland ⓘ southwestern Britain ⓘ |
| riftedFrom | Gondwana ⓘ |
| riftEventAgeApproximate | around 600–550 million years ago ⓘ |
| separatedFrom |
Gondwana
ⓘ
surface form:
Gondwana margin
|
| studiedInDiscipline |
paleogeography
ⓘ
stratigraphy ⓘ tectonics ⓘ |
| subductedOceanBetween | Iapetus Ocean ⓘ |
| tectonicSettingDuringRift | passive margin of Gondwana ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.