Kanada · Kerucut piroklastik
Hoodoo Mountain
- Tipe
- Kerucut piroklastik
- Ketinggian
- 1850 m
- Letusan terakhir
- -7050
- Tipe
- Kerucut piroklastik
- Negara
- Kanada
- Wilayah
- Amerika Utara / Northern Cordilleran Volcanic Province
- Ketinggian
- 1850 m
- Koordinat
- 56.780, -131.280
- Letusan terakhir
- -7050
- Kondisi tektonik
- Intralempeng / Kerak benua (> 25 km)
- Bentuk lahan
- Kecil
- Batuan utama
- Fonolit
Ringkasan geologi
Hoodoo Mountain is a flat-topped Pleistocene-to-Holocene volcano in the Boundary Ranges of NW British Columbia near the Alaska border that is composed of both subglacial and subaerial volcanic products. Valley glaciers surround the volcano on all except the south side. The Pleistocene Little Bear Mountain basaltic tuya adjoins Hoodoo Mountain on the immediate north. Most of the volcano formed beneath glacial ice; all flank flows appear to have originated from beneath the current 4-km-wide summit icecap. More than 90% of the volcano, which dates back to at least 100,000 years, consists of interlayered peralkaline phonolitic and trachytic lava flows and hyaloclastites. At least one subaerial explosive eruption produced a welded and unwelded ignimbrite sequence on the north side. The most recent stage of volcanic activity produced subaerial unglaciated lava flows with well-preserved lava channels that originated from summit and flank vents about 9,000 years ago.
Ringkasan Wikipedia
Ringkasan InggrisHoodoo Mountain, sometimes referred to as Hoodoo Volcano, is a potentially active stratovolcano in the Northern Interior of British Columbia, Canada. It is located 25 kilometres northeast of the Alaska–British Columbia border on the north side of the Iskut River opposite of the mouth of the Craig River. With a summit elevation of 1,850 metres and a topographic prominence of 900 m (3,000 ft), Hoodoo Mountain is one of many prominent peaks within the Boundary Ranges of the Coast Mountains. Its flat-topped summit is covered by an ice cap more than 100 m (330 ft) thick and at least 3 km (1.9 mi) in diameter. Two valley glaciers surrounding the northwestern and northeastern sides of the mountain have retreated significantly over the last hundred years. They both originate from a large icefield to the north and are the sources of two meltwater streams. These streams flow along the western and eastern sides of the volcano before draining into the Iskut River.
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Riwayat letusan
1 tercatatGlosariumGaris waktu rinci
- 7050 SMVEI 0Perkiraan geologi7050 SM – akhir tidak diketahui
Gunung api terdekat
- Cone Glacier VolcanoKerucut piroklastik · sejauh 40 km
- Spectrum RangeGunung api perisai · sejauh 81 km
- Mount Edziza volcanic complexStratovolkan · sejauh 112 km
- Duncan CanalMedan gunung api · sejauh 116 km
- Behm Canal-Rudyerd BayMedan gunung api · sejauh 160 km
- Level MountainGunung api perisai · sejauh 182 km
Tautan eksternal
⚠ Untuk referensi saja. Bukan untuk tanggap darurat.