High Arctic Large Igneous Province

E370437

The High Arctic Large Igneous Province is an extensive region of massive volcanic rock formations in the Arctic Ocean and surrounding areas, formed by intense magmatic activity during the Late Cretaceous.

All labels observed (1)

Label Occurrences
High Arctic Large Igneous Province canonical 1

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf geological formation
igneous province
large igneous province
climateImpact potential contributor to Cretaceous greenhouse climate (hypothesized)
contains dykes
lava flows
sills
volcaniclastic rocks
coversArea hundreds of thousands of square kilometres
discoveredBy geophysical surveys
eruptionStyle fissure eruptions
flood volcanism
formationProcess intense magmatic activity
geologicalAge Late Cretaceous
hasPart Alpha Ridge
Canadian Arctic Archipelago volcanic rocks
Lomonosov Ridge
Sverdrup Basin Magmatic Province
lithology basalt
flood basalts
mafic igneous rocks
locatedIn Arctic Ocean
Arctic region
Canada
Arctic region
surface form: Eurasian Arctic

Greenland
magmaticOrigin lithospheric extension
mantle plume activity (hypothesized)
mainMagmaticAge Cenomanian
Turonian
overlies older sedimentary basins in the Arctic
peakActivity approximately 95 to 90 million years ago
relatedTo Cretaceous Arctic rifting
Siberian Traps large igneous province volcanism
surface form: Siberian Arctic volcanic provinces

opening of the Arctic Ocean basin
researchField igneous petrology
marine geology
tectonics
rockType subaerial volcanic rocks
submarine volcanic rocks
significance important for understanding Arctic plate tectonic evolution
records Cretaceous high-latitude magmatism
studiedUsing dredge samples
drill cores
seismic reflection data
tectonicSetting intraplate
rift-related
timeOfActivity approximately 130 to 80 million years ago

How these facts were elicited

Referenced by (1)

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

Alpha Ridge associatedWith High Arctic Large Igneous Province