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Lava fountains can occur in the Northern Cordilleran Volcanic Province roughly every 100 years. [10] Level Mountain, the largest volcano of the Northern Cordilleran Volcanic Province. The large brown area in the middle is a dissected stratovolcano and the surrounding light brown is the broad shield volcano comprising a lava plateau.
The Northern Cordilleran Volcanic Province has been a zone of active volcanism since it began to form 20 million years ago. Unlike other parts of the Pacific Ring of Fire, the Northern Cordilleran Volcanic Province has its origins in continental rifting—an area where the Earth's crust and lithosphere is being pulled apart. [4]
Over half of the Northern Cordilleran volcanoes are located in northwestern British Columbia. This portion is where the most recent eruptions in Canada and of the Northern Cordilleran Volcanic Province have occurred, including the catastrophic 18th century eruption of Tseax Cone and the 1904 eruption of The Volcano. [3] [16]
The eruption rate of the MEVC has varied throughout its long volcanic history. When the volcanic complex started erupting at least 7.4 million years ago, it increased the rate of magmatism in the Northern Cordilleran Volcanic Province from 100,000 to 300,000 cubic metres (3,500,000 to 10,600,000 cubic feet) per year.
Tseax Cone is one of the southernmost volcanoes in the Northern Cordilleran Volcanic Province. [10] This is a broad area of shield volcanoes, lava domes, cinder cones and stratovolcanoes extending from northwestern British Columbia northwards through Yukon into easternmost Alaska. [27]
Chikoida Mountain is a volcanic feature of the Northern Cordilleran Volcanic Province that formed in the past 66.4 million years of the Cenozoic era. [ 3 ] See also
Pages in category "Northern Cordilleran Volcanic Province" The following 60 pages are in this category, out of 60 total. This list may not reflect recent changes .
Ibex Mountain is a young cinder cone in the Yukon Territory, Canada, located 33 km southwest of Whitehorse and 12 km southeast of Mount Arkell.It is in a group of basaltic cones and lava flows called Alligator Lake volcanic complex and is in the Northern Cordilleran Volcanic Province.