Amerika Serikat · Gunung api perisai
Belknap Crater
Belknap
- Tipe
- Gunung api perisai
- Ketinggian
- 2094 m
- Letusan terakhir
- 475
- Tipe
- Gunung api perisai
- Negara
- Amerika Serikat
- Wilayah
- Amerika Utara / High Cascades Volcanic Arc
- Ketinggian
- 2094 m
- Koordinat
- 44.285, -121.842
- Letusan terakhir
- 475
- Kondisi tektonik
- Zona subduksi / Kerak benua (> 25 km)
- Bentuk lahan
- Perisai
- Batuan utama
- Andesit / Andesit basaltik
Ringkasan geologi
The Belknap Crater area near McKenzie Pass in Oregon, north of the Three Sisters volcanoes, was the source of one of the largest concentrations of youthful volcanism in the Cascade Range. The basaltic to basaltic andesite Belknap shield volcano, topped by the Belknap Crater pyroclastic cone and the Little Belknap shield volcano immediately to the east, have produced widespread late Holocene lava flows on all sides, much of which took place between about 3,000 and 1,500 years ago. Eruptions from the NE base of Belknap crater produced lava flows that traveled 15 km W into the McKenzie River valley.
Ringkasan Wikipedia
Ringkasan InggrisBelknap Crater is a shield volcano in the Cascade Range in the U.S. state of Oregon. Located in Linn County, it is associated with lava fields and numerous subfeatures including the Little Belknap and South Belknap volcanic cones. It lies north of McKenzie Pass and forms part of the Mount Washington Wilderness. Belknap is not forested and most of its lava flows are not vegetated, though there is some wildlife in the area around the volcano, as well as a number of tree molds formed by its eruptive activity.
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Riwayat letusan
4 tercatatGlosariumGaris waktu rinci
- 475 (±215 tahun)VEI 2Perkiraan geologi475 – akhir tidak diketahuiBelknap Crater
- 685 SM (±50 tahun)VEI 2Perkiraan geologi685 SM – akhir tidak diketahuiSouth Belknap and Twin Craters
- 1071 SM (±241 tahun)VEI 0Perkiraan geologi1071 SM – akhir tidak diketahuiLittle Belknap
- 5050 SMVEI ?Perkiraan geologi5050 SM – akhir tidak diketahui
Gunung api terdekat
Tautan eksternal
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