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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]
The well-established local name for the volcano, Tseax Cone, became official on December 13, 1991, and was adopted on the National Topographic System map 103P/2. [ 2 ] [ 8 ] To the Nisga'a people, Tseax Cone is known as Wil Ksi Ba x hl Mihl ; in their language it means ' Where the Fire Ran Out ' , which is a reference to the volcanic eruption ...
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 this period was much greater than what is observed for the Northern Cordilleran Volcanic Province today. [1] Following the onset of activity at Edziza, Maitland volcanism commenced 5.2 million years ago with the outpouring of alkali basalt and hawaiite lava on a broad, late Tertiary, low-relief surface. This resulted in the ...
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. [4] [16] A period of quiescence appears to have followed at the MEVC and elsewhere in the Northern ...
It is the second largest persistent eruptive center within the Northern Cordilleran Volcanic Province and is flanked with numerous young satellite cones, including the young, well-preserved Eve Cone. There are some indications that Level Mountain and Mount Edziza volcanic complex may be between 11 and 9 million years old.
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