Insular Orogeny

E739607

Insular Orogeny is a major mountain-building event that formed much of the geology of western coastal North America, particularly the ranges of Vancouver Island and adjacent regions.

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Statements (45)

Predicate Object
instanceOf mountain-building event
orogeny
affectedRegion Coast of British Columbia NERFINISHED
Insular Mountains NERFINISHED
Northwestern Washington State NERFINISHED
Southeastern Alaska NERFINISHED
Vancouver Island NERFINISHED
western coastal North America
approximateAgeMa 170–90
associatedRockType metamorphic rocks
plutonic rocks
volcanic arc rocks
associatedStructure fold belts
shear zones
thrust faults
continent North America
created accretionary complexes
forearc basins
magmatic arc rocks
drivenBy subduction of oceanic plates beneath western North America
geologicPeriod Mesozoic
involvesTerrane Alexander Terrane NERFINISHED
Crescent Terrane NERFINISHED
Insular Superterrane NERFINISHED
Pacific Rim Terrane NERFINISHED
Wrangellia Terrane NERFINISHED
mainActivity Early Cretaceous
Late Jurassic
orogenicBelt Insular Belt NERFINISHED
partOf Cordilleran orogeny NERFINISHED
relatedTo Laramide Orogeny NERFINISHED
Nevadan Orogeny NERFINISHED
Sevier Orogeny NERFINISHED
resultedIn deformation of Mesozoic strata
folding and thrust faulting
formation of Insular Mountains
plutonic intrusions
regional metamorphism
uplift of Vancouver Island
significance contributed to growth of western North American continental margin
formed much of the bedrock of Vancouver Island
tectonicProcess arc-continent collision
subduction
terrane accretion
tectonicSetting convergent margin

Referenced by (1)

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

Vancouver Island Ranges orogeny Insular Orogeny