Pulau James Ross
Mount Haddington Volcanic Field
Gunung api perisai · Antarctica · 1544 m
- Tipe
- Gunung api perisai
- Negara
- Antarctica
- Wilayah
- Antarktika & Scotia / Antarctic Peninsula Volcanic Province
- Ketinggian
- 1544 m
- Koordinat
- -64.150, -57.750
- Letusan terakhir
- Tidak diketahui
- Kondisi tektonik
- Intraplate / Continental crust (> 25 km)
- Bentuk lahan
- Shield
- Batuan utama
- Basalt / Picro-Basalt
Ringkasan geologi
The glacier-covered Mount Haddington shield volcano forms the high point of James Ross Island along the Larsen Rift near the northern tip of the Antarctic Peninsula. Effusive eruptions fed large lava deltas with basal hyalocalstite breccias overlain by subaerial lava flows. Well-preserved tuff cones and pyroclastic cones on the eastern flank below the summit icecap were considered to be only a few thousand years old (Smellie et al., 2008).
Ringkasan Wikipedia
Ringkasan InggrisJames Ross Island is a large island off the southeast side and near the northeastern extremity of the Antarctic Peninsula, from which it is separated by Prince Gustav Channel. Rising to 1,630 metres (5,350 ft), it is irregularly shaped and extends 40 nautical miles in a north–south direction.
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