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Penguin Island

Stratovolkan · Antarctica · 180 m

The small 1.4 x 1.7 km Penguin Island, seen here from the SW, is located off the SE coast of King George Island in the South Shetland Islands. The most prominent feature is Deacon Peak (center), a largely basaltic scoria cone with a 350-m-wide summit crater. Petrel Crater, a 300-m-wide maar, is located behind Deacon Peak, out of view in this photo. Both Deacon Peak and Petrel Crater were formed within the past few hundred years.
The small 1.4 x 1.7 km Penguin Island, seen here from the SW, is located off the SE coast of King George Island in the South Shetland Islands. The most prominent feature is Deacon Peak (center), a largely basaltic scoria cone with a 350-m-wide summit crater. Petrel Crater, a 300-m-wide maar, is located behind Deacon Peak, out of view in this photo. Both Deacon Peak and Petrel Crater were formed within the past few hundred years. · Foto: Photo by Oscar González-Ferrán (University of Chile). · Wikimedia Commons
Tipe
Stratovolkan
Negara
Antarctica
Wilayah
Antarctic-Scotia Volcanic Regions / South Shetlands Volcanic Arc
Ketinggian
180 m
Koordinat
-62.100, -57.930
Letusan terakhir
1905
Kondisi tektonik
Intraplate / Continental crust (> 25 km)
Bentuk lahan
Composite
Batuan utama
Basalt / Picro-Basalt
Ringkasan geologi

The 1.4 x 1.7 km Penguin Island is located off the SE coast of King George Island in Antarctica's South Shetland Islands, west of the axis of the Bransfield Rift. The most prominent feature is Deacon Peak, a basaltic scoria cone with a 350-m-wide summit crater on the SW side of the island. A small plug of basaltic lava occupies the 75-m-deep crater. Petrel Crater, a 300-m-wide maar, is located near the east coast. The formation of Deacon Peak was dated by lichenometry at about 300 years ago, and the younger Petrel Crater maar was dated at about 100 years (Birkenmajer, 1979). Some reports of fumarolic activity on nearby Bridgeman Island are attributed to the more youthful Penguin Island.

Ringkasan Wikipedia

Ringkasan Inggris

Penguin Island is one of the smaller of the South Shetland Islands of Antarctica.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
1683~1705 · 1 letusan · VEI maks. ?1838~1861 · 1 letusan · VEI maks. ?1883~1905 · 1 letusan · VEI maks. ?16831727179418381883

Garis waktu rinci

  1. 1905VEI ?Perkiraan geologi
    1905 – Berlangsung
    NE flank (Petrel Crater)
  2. 1850VEI ?Teramati
    1850 – Berlangsung
    Deacon Peak
  3. 1683VEI ?Perkiraan geologi
    1683 – Berlangsung
    Deacon Peak

Tautan eksternal

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