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バルビ山

Balbi

成層火山 · Papua New Guinea · 2715m

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. · 写真: Photo by Wally Johnson, 1987 (Australia Bureau of Mineral Resources). · Wikimedia Commons
タイプ
成層火山
国
Papua New Guinea
地域
Southwestern Pacific Volcanic Regions / Bougainville Volcanic Arc
標高
2715m
座標
-5.916, 155.001
最終噴火
不明
テクトニクス環境
Subduction zone / Crustal thickness unknown
火山地形
Composite
主要岩石
Andesite / Basaltic Andesite
地質学的概要

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.

Wikipedia の要約

英語版の要約

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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噴火履歴

概要 (VEI時系列)
バーをクリックすると個別の噴火が表示されます
1825~1825 · 1件 · 最大 VEI ?18251825182618261826

詳細タイムライン

  1. 1825年 (±25年)VEI ?地質学的推定
    1825 ~ 進行中
    Crater B ?

外部リンク

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