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Gunung Balbi

Balbi

Stratovolkan · 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
Tipe
Stratovolkan
Negara
Papua New Guinea
Wilayah
Southwestern Pacific Volcanic Regions / Bougainville Volcanic Arc
Ketinggian
2715 m
Koordinat
-5.916, 155.001
Letusan terakhir
Tidak diketahui
Kondisi tektonik
Subduction zone / Crustal thickness unknown
Bentuk lahan
Composite
Batuan utama
Andesite / Basaltic Andesite
Ringkasan geologi

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.

Ringkasan Wikipedia

Gunung Balbi adalah sebuah gunung berapi kerucut Holosen yang terletak di bagian utara pulau Pulau Bougainville, Papua Nugini. Sebuah tonjolan landai di 05°54′09″S 154°59′28″E adalah titik tertinggi di pulau ini. Terdapat lima kawah vulkanik di sebelah timur puncak, salah satunya berisi danau kawah vulkanik. Puncaknya terdiri dari kerucut dan kubah lava yang menyatu yang menjadi tempat lapangan solfatara yang luas. Terdapat banyak fumarol di dekat kawah, meskipun Balbi belum pernah meletus dalam sejarah.

Wikipedia · CC BY-SA · Baca artikel lengkap →

Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
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1825~1825 · 1 letusan · VEI maks. ?18251825182618261826

Garis waktu rinci

  1. 1825 (±25 tahun)VEI ?Perkiraan geologi
    1825 – Berlangsung
    Crater B ?

Tautan eksternal

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