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Bola

成層火山 · Papua New Guinea · 1116m

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. · 写真: Photo by Elliot Endo, 2002 (U.S. Geological Survey). · Wikimedia Commons
タイプ
成層火山
国
Papua New Guinea
地域
南西太平洋 / Bismarck Volcanic Arc
標高
1116m
座標
-5.141, 150.038
最終噴火
不明
テクトニクス環境
Subduction zone / Continental crust (> 25 km)
火山地形
Composite
主要岩石
Andesite / Basaltic Andesite
地質学的概要

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.

噴火履歴

詳細タイムライン

噴火記録はありません。

外部リンク

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