Stati Uniti · Vulcano a scudo
Belknap Crater
Belknap
- Tipo
- Vulcano a scudo
- Altitudine
- 2094 m
- Ultima eruzione
- 475
- Tipo
- Vulcano a scudo
- Paese
- Stati Uniti
- Regione
- Nord America / High Cascades Volcanic Arc
- Altitudine
- 2094 m
- Coordinate
- 44.285, -121.842
- Ultima eruzione
- 475
- Contesto tettonico
- Zona di subduzione / Crosta continentale (> 25 km)
- Forma vulcanica
- A scudo
- Roccia principale
- Andesite / Andesite basaltica
Sintesi geologica
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.
Sintesi da Wikipedia
Riassunto in ingleseBelknap 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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Storia delle eruzioni
4 registrateGlossarioCronologia dettagliata
- 475 (±215 anni)VEI 2Stima geologica475 – fine sconosciutaBelknap Crater
- 685 a.C. (±50 anni)VEI 2Stima geologica685 a.C. – fine sconosciutaSouth Belknap and Twin Craters
- 1071 a.C. (±241 anni)VEI 0Stima geologica1071 a.C. – fine sconosciutaLittle Belknap
- 5050 a.C.VEI ?Stima geologica5050 a.C. – fine sconosciuta
Vulcani nelle vicinanze
Link esterni
⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.