The Natkusiak flood basalts are a sequence of
Neoproterozoic continent
A continent is any of several large landmasses. Generally identified by convention rather than any strict criteria, up to seven geographical regions are commonly regarded as continents. Ordered from largest in area to smallest, these seven ...
al
flood basalts of the
Franklin Large Igneous Province
The Franklin Large Igneous Province is a Neoproterozoic large igneous province in the Canadian Arctic of Northern Canada. It represents one of the largest large igneous provinces in Canada, consisting of the Natkusiak flood basalts on Victoria I ...
on
Victoria Island
Victoria Island ( ikt, Kitlineq, italic=yes) is a large island in the Arctic Archipelago that straddles the boundary between Nunavut and the Northwest Territories of Canada. It is the List of islands by area, eighth-largest island in the world, ...
,
Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...
. The flood basalts were erupted about 720 million years ago after uplift began three to five million years prior to the flood basalt volcanism. This uplift and flood basalt volcanism was caused by a
mantle plume. This flood basalt sequence is related to the Franklin magmatic event.
See also
*
Volcanism of Northern Canada
References
Large Igneous Provinces and the Mantle Plume HypothesisNature and timing of Franklin igneous events, Canada : implications for a Late Proterozoic mantle plume and the break-up of Laurentia
Volcanism of the Northwest Territories
Neoproterozoic volcanism
Flood basalts
Hotspot volcanism
{{NorthwestTerritories-geo-stub
Sturtian glaciation