Canada · Vulcano a scudo
Level Mountain
- Tipo
- Vulcano a scudo
- Altitudine
- 2164 m
- Ultima eruzione
- Sconosciuto
- Tipo
- Vulcano a scudo
- Paese
- Canada
- Regione
- Nord America / Northern Cordilleran Volcanic Province
- Altitudine
- 2164 m
- Coordinate
- 58.420, -131.350
- Ultima eruzione
- Sconosciuto
- Contesto tettonico
- Intraplacca / Crosta continentale (> 25 km)
- Forma vulcanica
- A scudo
- Roccia principale
- Trachite / Trachidacite
Sintesi geologica
Level Mountain is the most voluminous eruptive center of the Stikine volcanic belt in NW British Columbia. The massive volcano covers an area of 1,800 km2 SW of Dease Lake and N of Telegraph Creek. An 860 km3 bimodal Miocene-to-Pliocene stratovolcano with several eruptive centers caps a Miocene basaltic shield. Following extensive glacial dissection and emplacement of late-Pliocene 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 its flanks. The broad dissected summit region consists of trachytic and rhyolitic lava domes and was considered to have several minor basaltic vents of postglacial age (Hamilton and Scafe, 1977), although Edwards and Russell (2000) considered Holocene activity to be uncertain.
Sintesi da Wikipedia
Riassunto in ingleseLevel Mountain is a large volcanic complex in the Northern Interior of British Columbia, Canada. It is located 50 kilometres north-northwest of Telegraph Creek and 60 km (37 mi) west of Dease Lake on the Nahlin Plateau. With a maximum elevation of 2,164 metres, it is the second-highest of four large complexes in an extensive north–south trending volcanic region. Much of the mountain is gently sloping; when measured from its base, Level Mountain is about 1,100 m (3,600 ft) tall, slightly taller than its neighbour to the northwest, Heart Peaks. The lower, broader half of Level Mountain consists of a shield-like structure whereas its upper half has a more steep, jagged profile. Its broad summit is dominated by the Level Mountain Range, a small mountain range with prominent peaks cut by deep valleys. These valleys serve as a radial drainage for several small streams that flow from the mountain. Meszah Peak is the only named peak in the Level Mountain Range.
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