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monte Balbi

Balbi

Stratovulcano · Papua New Guinea · 2715 m

Balbi volcano forms the highest point on Bougainville Island and is part of a large number of coalesced cones and lava domes. Five well-preserved craters occupy a NW-SE-trending ridge N of the summit, which also has a crater. Crater C, containing a small lake, is seen here from the E. A plume from a fumarole field on the W flank of 600-m-wide Crater B is visible to the left. The latest eruption may have been as recent as the mid-19th century.
Balbi volcano forms the highest point on Bougainville Island and is part of a large number of coalesced cones and lava domes. Five well-preserved craters occupy a NW-SE-trending ridge N of the summit, which also has a crater. Crater C, containing a small lake, is seen here from the E. A plume from a fumarole field on the W flank of 600-m-wide Crater B is visible to the left. The latest eruption may have been as recent as the mid-19th century. · Foto: Photo by Wally Johnson, 1987 (Australia Bureau of Mineral Resources). · Wikimedia Commons
Tipo
Stratovulcano
Paese
Papua New Guinea
Regione
Southwestern Pacific Volcanic Regions / Bougainville Volcanic Arc
Altitudine
2715 m
Coordinate
-5.916, 155.001
Ultima eruzione
Sconosciuto
Contesto tettonico
Subduction zone / Crustal thickness unknown
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

The complex andesitic Balbi stratovolcano on Bougainville Island includes a large number of coalesced cones and lava domes. Five well-preserved craters occupy a NW-SE-trending ridge north of the summit cone, which also contains a crater. Three large valleys with steep headwalls dissect the flanks. The age of the most recent eruption is not known precisely. An oral tradition of a major eruption during the 19th century is thought to be in error, but could refer to minor eruptive activity. Fumaroles are located within 600-m-wide Crater B and on its W flank.

Sintesi da Wikipedia

Riassunto in inglese

Mount Balbi is a Holocene stratovolcano located in the northern portion of the island of Bougainville, Papua New Guinea. A gentle prominence at 05°54′09″S 154°59′28″E is the highest point of the island. There are five volcanic craters east of the summit, one of which contains a crater lake. The summit is composed of coalesced cones and lava domes which host a large solfatara field. There are numerous fumaroles near the craters, though Balbi has not erupted in historic time.

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Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
1825~1825 · 1 eruzioni · VEI max. ?18251825182618261826

Cronologia dettagliata

  1. 1825 (±25 anni)VEI ?Stima geologica
    1825 – In corso
    Crater B ?

Link esterni

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