Matachewan dike swarm

{{Short description|Large geological structure in Canada}}

Image:Matachewan and Mistassini dike swarms.pngs of Eastern Canada]]

The Matachewan dike swarm is a large 2,500 to 2,450 million year old Paleoproterozoic dike swarm of Northern Ontario, Canada. It consists of basaltic dikes that were intruded in greenschist, granite-greenstone, and metamorphosed sedimentary terrains of the Superior Craton of the Canadian Shield.[http://adsabs.harvard.edu/abs/1987asee....2Q....N Petrogenesis of basalts from the Archean Matachewan Dike Swarm Superior Province of Canada] With an area of {{convert|360000|km2}}, the Matachewan dike swarm stands as a large igneous province.[http://www.thefreelibrary.com/Igneous+rock+associations+in+Canada+3.+Large+Igneous+Provinces+(LIPs)+...-a0124343378 Igneous rock associations in Canada 3. Large Igneous Provinces (LIPs) in Canada and adjacent regions: 3 Ga to Present.]