Level Mountain Range
From Wikipedia, the free encyclopedia
| Level Mountain Range | |
| Range | |
 The central dissected caldera of Level Mountain, with extensive elevated plateau in the foreground.
|
|
| Country | Canada |
|---|---|
| Province | British Columbia |
| Part of | Coast Mountains |
| Highest point | Level Mountain |
| - elevation | 2,190 m (7,185 ft) |
| - coordinates | |
| Geology | Shield volcano with lava domes |
| Period | Miocene-to-Holocene?[1] |
The Level Mountain Range is a plateau range, in northwestern British Columbia, Canada, located about 50 km north of Mount Edziza. It is north of the Hackett River. The only named summit in the range is Level Mountain (officially gazetted as Meszah Peak). The Level Mountain Range is simply named "Level Mountain" by S.Holland.[2]
Contents |
[edit] Geology
The Level Mountain Range is the most voluminous and most persistent eruptive center of the Northern Cordilleran Volcanic Province in northwestern British Columbia.[1] The spectacular shield volcano covers an area of 1,800 km2 southwest of Dease Lake and north of Telegraph Creek and is about 32 km (20 mi) in diameter. An 860 km3 bimodal, Miocene-to-Pliocene stratovolcano with several eruptive centers caps the Miocene basaltic shield volcano. Following extensive glacial dissection and emplacement of late-Pilocene silicic lava domes, lesser activity continued into the Quaternary. More than 20 Tertiary-to-Holocene eruptive centers have been identified in the central portion of Level Mountain and on it's flanks. The broad, dissected summit region contains a caldera and consists of trachytic and rhyolitic lava domes and was considered to be dotted with several minor basaltic vents of postglacial age, although considered Holocene activity to be uncertain.[1] The gentle slopes of the mountains parallel the gently outward-dipping thin basaltic lava flows. There has been some dissection of the shield by stream erosion, and late-stage cirque glaciers have scalloped some of the valley headwalls. The Level Mountain Range may be at least 10 million years old.
[edit] See also
- Northern Cordilleran Volcanic Province
- List of volcanoes in Canada
- Volcanism in Canada
- Geography of Canada
- Geology of the Pacific Northwest
[edit] References
- ^ a b c Smithsonian Institution Global Volcanism Program: Level Mountain Range
- ^ Level Mountain Range in the Canadian Mountain Encyclopedia.
