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Bola

Stratovulcano · Papua New Guinea · 1116 m

Conical Bola volcano (also known as Wangore) rises to the NW across Stetin Bay. The symmetrical stratovolcano is located immediately SW of Dakatau caldera and forms the high point of the Willaumez Peninsula in central New Britain. The forested cone has a well-preserved, 400-m-wide crater. No historical eruptions have been documented from Bola, but its morphology suggests very recent activity.
Conical Bola volcano (also known as Wangore) rises to the NW across Stetin Bay. The symmetrical stratovolcano is located immediately SW of Dakatau caldera and forms the high point of the Willaumez Peninsula in central New Britain. The forested cone has a well-preserved, 400-m-wide crater. No historical eruptions have been documented from Bola, but its morphology suggests very recent activity. · Foto: Photo by Elliot Endo, 2002 (U.S. Geological Survey). · Wikimedia Commons
Tipo
Stratovulcano
Paese
Papua New Guinea
Regione
Southwestern Pacific Volcanic Regions / Bismarck Volcanic Arc
Altitudine
1116 m
Coordinate
-5.141, 150.038
Ultima eruzione
Sconosciuto
Contesto tettonico
Subduction zone / Continental crust (> 25 km)
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

Bola volcano (also known as Wangore) is a symmetrical stratovolcano located immediately SW of Dakataua caldera on the Willaumez Peninsula. The forested andesitic cone has a 400-m-wide crater with a 100-m-high eastern wall and a low western rim. Three large explosion craters occupy the NE flank. The most recent lava flow issued from the summit crater and flowed to the west. This viscous flow is at least 50 m thick, leaving an irregularity in the profile of the volcano. The summit crater morphology and weak fumarolic activity suggested to Lowder and Carmichael (1970) that the most recent eruption may have been only a few hundred years ago.

Sintesi da Wikipedia

Riassunto in inglese

The Bola volcano, also known as Wangore, is an andesitic stratovolcano, located south-west of the Dakataua caldera in New Britain, Papua New Guinea. It is 1,116 metres (3,661 ft) tall and has a 400 m (1,310 ft) wide summit crater.

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