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Papua Nugini · Gunung api kompleks

St. Andrew Strait

Tipe
Gunung api kompleks
Ketinggian
270 m
Letusan terakhir
1957
The St. Andrew Strait volcano is located in the Admiralty Islands north of Papua New Guinea. The volcanic complex consists of a series of overlapping Quaternary cones formed by rhyolitic lava flows and pyroclastic deposits on Lou and Tuluman Islands. Volcanism is aligned along a curved arc, extending through the 12-km-long Lou Island. Tuluman Island, seen here from the SW with Lou Island 1.5 km away at the upper left, was formed during a 1953-57 eruption.
The St. Andrew Strait volcano is located in the Admiralty Islands north of Papua New Guinea. The volcanic complex consists of a series of overlapping Quaternary cones formed by rhyolitic lava flows and pyroclastic deposits on Lou and Tuluman Islands. Volcanism is aligned along a curved arc, extending through the 12-km-long Lou Island. Tuluman Island, seen here from the SW with Lou Island 1.5 km away at the upper left, was formed during a 1953-57 eruption. · Foto: Photo by Wally Johnson, 1964 (Australia Bureau of Mineral Resources).
Tipe
Gunung api kompleks
Negara
Papua Nugini
Wilayah
Pasifik Barat Daya / Bismarck Sea Volcanic Province
Ketinggian
270 m
Koordinat
-2.380, 147.350
Letusan terakhir
1957
Kondisi tektonik
Zona subduksi / Kerak samudra (< 15 km)
Bentuk lahan
Komposit
Batuan utama
Riolit
Ringkasan geologi

The St. Andrew Strait volcano, located in the Admiralty Islands north of Papua New Guinea, consists of a series of overlapping Quaternary cones formed by rhyolitic lava flows and pyroclastic materials on Lou and Tuluman Islands. Volcanism is aligned on a curved arc extending through the 12-km-long Lou Island. The Tuluman Islands, 1.5 km S of Lou Island, were formed during a 1953-1957 eruption. Pam Lin and Pam Mandian Islands farther to the SE along the same arc contain fresh rhyolitic obsidian similar to that found on Tuluman.

Riwayat letusan

5 tercatatGlosarium
Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu · Gunakan tombol panah untuk berpindah batang, Enter untuk membuka
240 SM~41 SM · 1 letusan · VEI maks. ?159~358 · 1 letusan · VEI maks. ?1754~1953 · 3 letusan · VEI maks. 2240 SM35875713551754

Garis waktu rinci

  1. 1953VEI 2Teramati
    1953-06-27 – 1957-01-28
    Tuluman
  2. 1931VEI 0Metode tidak dinyatakan
    1931-07-02 – akhir tidak diketahui
    Tuluman (?)
  3. 1883VEI 2Teramati
    1883-03-28 – akhir tidak diketahui
    Tuluman
  4. 350VEI ?Perkiraan geologi
    350 – akhir tidak diketahui
    Lou Island (Bedal volcano)
  5. 240 SM (±100 tahun)VEI ?Perkiraan geologi
    240 SM – akhir tidak diketahui
    Lou Island (Bedal volcano)

Gunung api terdekat

Tautan eksternal

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