Insular Belt

E733872

The Insular Belt is a major Mesozoic volcanic and plutonic terrane along the western margin of North America, formed by the accretion of island arcs that now make up much of the Insular Mountains and adjacent regions.

All labels observed (1)

Label Occurrences
Insular Belt canonical 3

How this entity was disambiguated

Statements (44)

Predicate Object
instanceOf Mesozoic geological feature
geologic terrane
plutonic terrane
volcanic arc terrane
associatedWith Coast Plutonic Complex
boundedBy Coast Belt
characterizedBy large plutonic intrusions
thick volcanic sequences
composedOf island arc complexes
plutonic rocks
volcanic rocks
extendsThrough British Columbia
Yukon
southeastern Alaska
formedBy accretion of island arcs
formedDuring Cretaceous
Jurassic
Triassic
geologicAge Mesozoic
importantFor reconstruction of Cordilleran tectonic history
includes Alexander terrane
linked to: Wrangellia terrane

Haida Gwaii
Insular Mountains
Queen Charlotte Islands
linked to: Haida Gwaii

Vancouver Island
Wrangellia terrane
isPartOf Insular superterrane
lithologyIncludes andesite
basalt
diorite
gabbro
granodiorite
locatedIn western margin of North America
namedFor Insular Mountains
overlies Intermontane Belt
partOf Canadian Cordillera
North American Cordillera
relatedTo subduction of oceanic plates beneath North America
separatedFrom Intermontane Belt by major faults
studyField geology
petrology
tectonics
tectonicOrigin island arc accretion
tectonicSetting convergent margin

How these facts were elicited

Referenced by (3)

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

Insular Mountains orogeny Insular Belt
Insular Mountains geologicProvince Insular Belt
Insular Orogeny orogenicBelt Insular Belt