Avalonia microcontinent

E89372
ancient landmass microcontinent

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.

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All labels observed (3)

Label Occurrences
Avalon terrane 2
Avalonia microcontinent canonical 1
collided with Laurentia 1

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 ⓘ
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 (4)

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

Appalachian orogeny → involvesPlate → Avalonia microcontinent ⓘ
Baltica → hasTectonicHistory → Avalonia microcontinent ⓘ
this entity surface form: collided with Laurentia
Avalonia → contains → Avalonia microcontinent ⓘ
this entity surface form: Avalon terrane
Gaskiers glaciation → evidenceFoundIn → Avalonia microcontinent ⓘ
this entity surface form: Avalon terrane