Kanada · Gunung api perisai
Spectrum Range
- Tipe
- Gunung api perisai
- Ketinggian
- 2430 m
- Letusan terakhir
- Tidak diketahui
- Tipe
- Gunung api perisai
- Negara
- Kanada
- Wilayah
- Amerika Utara / Northern Cordilleran Volcanic Province
- Ketinggian
- 2430 m
- Koordinat
- 57.430, -130.680
- Letusan terakhir
- Tidak diketahui
- Kondisi tektonik
- Intralempeng / Kerak benua (> 25 km)
- Bentuk lahan
- Perisai
- Batuan utama
- Riolit
Ringkasan geologi
The Spectrum Range, named for its extensive colorful solfataric alteration, is one of four large composite volcanoes that make up the Mount Edziza-Spectrum Range volcanic complex, in which a predominately rhyolitic lava dome complex overlies a basal basaltic shield volcano. The Pliocene center contains Pleistocene subglacial and subaerial cones on the SW flank and Holocene pyroclastic cones and lava flows on the NW and SW sides. The Mess Lake Lava Field on the NW flank consists of young lava flows and tephra from three pyroclastic cones, including The Ash Pit, which may be the youngest volcanic feature of this complex.
Ringkasan Wikipedia
Ringkasan InggrisThe Spectrum Range is a small mountain range in Cassiar Land District of northwestern British Columbia, Canada. Located on the Tahltan Highland, it borders the Skeena Mountains in the east and the Boundary Ranges of the Coast Mountains in the west. The range is bounded by the Arctic Lake Plateau in the southwest and the Kitsu Plateau in the northwest. It lies at the southern end of the Mount Edziza volcanic complex, which includes the two neighbouring plateaus and the Big Raven Plateau to the north. The range contains glaciers and is drained on all sides by streams within the Stikine River watershed. It is characterized by multi-coloured rocks, after which the range is named. Kitsu Peak, the highest point of the range, reaches an elevation of 2,430 metres. The range is a protected area as it lies within Mount Edziza Provincial Park, one of the largest provincial parks in British Columbia.
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