Volcano Mountain

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Volcano Mountain
Volcano Mountain.jpg
Elevation 1,239 m (4,065 ft)
Location
Location Yukon, Canada
Range Yukon Ranges
Coordinates 62°56′N 137°23′W / 62.93°N 137.38°W / 62.93; -137.38
Topo map NTS 115.I/14
Geology
Type Cinder cone
Age of rock Holocene?
Volcanic arc/belt Northern Cordilleran Volcanic Province

Volcano Mountain is an active cinder cone in central Yukon Territory, Canada, located a short distance north of Fort Selkirk, near the confluence of the Pelly and Yukon Rivers. Volcano Mountain is called Nelrúna in the Northern Tutchone language.

Geology[edit]

Volcano Mountain is the youngest volcano in the Fort Selkirk Volcanic Field and one of the youngest in the northern section of the Northern Cordilleran Volcanic Province. The lava at Volcano Mountain is called olivine nephelinite, which is a very uncommon type of lava. This type of lava is believed to have come from much deeper inside the Earth than the basaltic lava. The last eruption from Volcano Mountain produced young nephelinitic lava flows that remain unvegetated and appear to be only a few hundred years old. However, dating of sediments in lake impounded by the lava flows indicated that the youngest flows could not be younger than mid-Holocene and could be early Holocene or older.

Volcanic hazards[edit]

Future eruptions from Volcano Mountain would probably be lava flows, since there is a lack of pyroclastic material. The main hazards from Volcano Mountain are forest fires started by the lava flows. Older volcanic deposits south of Volcano Mountain indicate that lava flows may have once partly blocked or at least altered the course of the Yukon and Pelly Rivers. Any future activity in this area could disrupt the course of both of these major rivers and could have a serious impact on people living or working downstream.

See also[edit]

External links[edit]